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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K


ý
 
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2012

OR

o
 
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                        to                       

Commission File No. 0-14719

SKYWEST, INC.

Incorporated under the Laws of Utah   87-0292166
(IRS Employer ID No.)

444 South River Road
St. George, Utah 84790
(435) 634-3000

Securities Registered Pursuant to Section 12(b) of the Act: None

Securities Registered Pursuant to Section 12(g) of the Act:
 Common Stock, No Par Value

         Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes o    No ý

         Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o    No ý

         Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý    No o

         Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ý    No o

         Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in the definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ý

         Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer o   Accelerated filer ý   Non-accelerated filer o
 (Do not check if a
smaller reporting company)		   Smaller reporting company o

         Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes o    No ý

         The aggregate market value of the registrant's common stock held by non-affiliates (based upon the closing sale price of the registrant's common stock on The Nasdaq National Market) on June 29, 2012 was approximately $320,824,359.

         As of February 8, 2013, there were 51,805,588 shares of the registrant's common stock outstanding.

Documents Incorporated by Reference

         Portions of the registrant's proxy statement to be used in connection with the Registrant's 2013 Annual Meeting of Shareholders are incorporated by reference into Part III of this Report as specified.

   

Table of Contents


SKYWEST, INC.
ANNUAL REPORT ON FORM 10-K

TABLE OF CONTENTS

 
    
   Page No.  

 

PART I

        

Cautionary Statement Concerning Forward Looking Statements

     3  

Item 1.

  

Business

     3  

Item 1A.

  

Risk Factors

     18  

Item 1B.

  

Unresolved Staff Comments

     33  

Item 2.

  

Properties

     34  

Item 3.

  

Legal Proceedings

     37  

Item 4.

  

Mine Safety Disclosures

     38  

 

PART II

        

Item 5.

  

Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

     39  

Item 6.

  

Selected Financial Data

     42  

Item 7.

  

Management's Discussion and Analysis of Financial Condition and Results of Operations

     43  

Item 7A.

  

Quantitative and Qualitative Disclosures About Market Risk

     64  

Item 8.

  

Financial Statements and Supplementary Data

     65  

Item 9.

  

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

     102  

Item 9A.

  

Controls and Procedures

     102  

Item 9B.

  

Other Information

     104  

 

PART III

        

Item 10.

  

Directors, Executive Officers and Corporate Governance

     104  

Item 11.

  

Executive Compensation

     104  

Item 12.

  

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

     104  

Item 13.

  

Certain Relationships and Related Transactions

     104  

Item 14.

  

Principal Accountant Fees and Services

     104  

 

PART IV

        

Item 15.

  

Exhibits and Financial Statement Schedules

     104  

Signatures

     110  

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PART I

        Unless otherwise indicated in this Report, "SkyWest," "we," "us," "our" and similar terms refer to SkyWest, Inc. and "SkyWest Airlines" refers to our wholly-owned subsidiary, SkyWest Airlines, Inc.

        Effective December 31, 2011, our subsidiary, ExpressJet Airlines, Inc. was merged into our subsidiary, Atlantic Southeast Airlines, Inc., with the surviving corporation named ExpressJet Airlines, Inc. (the "ExpressJet Combination"). In this Report, "Atlantic Southeast" refers to Atlantic Southeast Airlines, Inc. for periods prior to the ExpressJet Combination, "ExpressJet Delaware" refers to ExpressJet Airlines, Inc., a Delaware corporation, for periods prior to the ExpressJet Combination, and "ExpressJet" refers to ExpressJet Airlines, Inc., the Utah corporation resulting from the combination of Atlantic Southeast and ExpressJet Delaware, for periods subsequent to the ExpressJet Combination.

Cautionary Statement Concerning Forward-Looking Statements

        Certain of the statements contained in this Report should be considered "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may be identified by words such as "may," "will," "expect," "intend," "anticipate," "believe," "estimate," "plan," "project," "could," "should," "hope," "likely," and "continue" and similar terms used in connection with statements regarding our outlook, anticipated operations, the revenue environment, our contractual relationships, and our anticipated financial performance. These statements include, but are not limited to, statements about our future growth and development plans, including our future financial and operating results, our plans for SkyWest Airlines and ExpressJet, our objectives, expectations and intentions and other statements that are not historical facts. Readers should keep in mind that all forward-looking statements are based on our existing beliefs about present and future events outside of our control and on assumptions that may prove to be incorrect. If one or more risks identified in this Report materializes, or any other underlying assumption proves incorrect, our actual results will vary, and may vary materially, from those anticipated, estimated, projected, or intended. These risks and uncertainties include, but are not limited to, those described below in Item 1A. Risk Factors.

        There may be other factors that may affect matters discussed in forward-looking statements set forth in this Report, which factors may also cause actual results to differ materially from those discussed. We assume no obligation to publicly update any forward-looking statement to reflect actual results, changes in assumptions or changes in other factors affecting these statements other than as required by applicable law.

ITEM 1.    BUSINESS

General

        Through SkyWest Airlines and ExpressJet, we offer scheduled passenger service with approximately 4,000 daily departures to destinations in the United States, Canada, Mexico and the Caribbean. Substantially all of our flights are operated as Delta Connection, United Express, US Airways Express, American Eagle or Alaska under code-share arrangements with Delta, United Air Lines, Inc. ("United") US Airways Group, Inc. ("US Airways"), American Airlines, Inc. ("American") and Alaska Airlines ("Alaska"). SkyWest Airlines and ExpressJet generally provide regional flying to our partners under long-term, fixed-fee code-share agreements. Among other features of our fixed-fee agreements, our partners generally reimburse us for specified direct operating expenses (including fuel expense, which is passed through to our partners), and pay us a fee for operating the aircraft.

        On December 31, 2011, Atlantic Southeast and ExpressJet Delaware completed the ExpressJet Combination. Since November 17, 2011, the operations formerly conducted by Atlantic Southeast and ExpressJet Delaware have been conducted under a single operating certificate issued by the U.S.

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Federal Aviation Administration (the "FAA"). We currently anticipate that we will complete the full integration of the operations of Atlantic Southeast and ExpressJet Delaware into ExpressJet during 2013 and 2014.

        SkyWest Airlines and ExpressJet have developed industry-leading reputations for providing quality regional airline service during their long operating histories. SkyWest Airlines has been flying since 1972 and ExpressJet (and its predecessors) since 1979. As of December 31, 2012, our consolidated fleet consisted of a total of 744 aircraft, of which 445 were assigned to United, 261 were assigned to Delta, 15 were assigned to US Airways, 12 were assigned to American, five were assigned to Alaska, four were subleased to affiliated entities and two were subleased to unaffiliated entities. We currently operate two types of regional jet aircraft: the Bombardier Aerospace ("Bombardier") regional jet, which comes in three different configurations (the 50-seat Bombardier CRJ200 Regional Jet (the "CRJ200"), the 70-seat Bombardier CRJ700 Regional Jet (the "CRJ700") and the 70-90-seat Bombardier CRJ900 Regional Jet (the "CRJ900")), and the Embraer S.A. ("Embraer") regional jet, which we operate in two different configurations the 50-seat Embraer ERJ-145 regional jet ("ERJ145") and the 37-seat Embraer ERJ-135 regional jet ("ERJ135"). We also operate the 30-seat Embraer Brasilia EMB-120 turboprop (the "Brasilia turboprop").

        We were incorporated in Utah in 1972. Our principal executive offices are located at 444 South River Road, St. George, Utah 84790, and our primary telephone number is (435) 634-3000. We maintain an Internet web site at www.skywest.com. Our website provides a link to the web site of the SEC, through which our annual, quarterly and current reports, as well as amendments to those reports, are available. In addition, we provide electronic or paper copies of our SEC filings free of charge upon request.

Our Operating Platforms

        SkyWest Airlines provides regional jet and turboprop service to airports primarily located in the midwestern and western United States. SkyWest Airlines offered approximately 1,750 daily scheduled departures as of December 31, 2012, of which approximately 1,050 were United Express flights, 500 were Delta Connection flights, 90 were US Airways Express flights, 85 were American Eagle flights and 25 were Alaska-coded flights. SkyWest Airlines' operations are conducted principally from airports located in Chicago (O'Hare), Denver, Los Angeles, Houston, Minneapolis, Portland, Seattle, Phoenix, San Francisco and Salt Lake City. SkyWest Airlines' fleet as of December 31, 2012 consisted of 28 CRJ900s, all of which were flown for Delta; 94 CRJ700s, of which 70 were flown for United, 19 were flown for Delta and five were flown for Alaska; 159 CRJ200s, of which 78 were flown for United, 54 were flown for Delta, 15 were flown for US Airways and 12 were flown for American; and 42 Brasilia turboprops, of which 34 were flown for United and eight were flown for Delta.

        SkyWest Airlines currently conducts Delta Connection operations pursuant to the terms of an Amended and Restated Delta Connection Agreement, pursuant to which SkyWest Airlines is paid primarily on a fee-per-completed block hour and departure basis, plus a payment based on block hours flown (the "SkyWest Airlines Delta Connection Agreement"). SkyWest Airlines' United code-share operations are conducted under a United Express Agreement, pursuant to which SkyWest Airlines is paid primarily on a fee-per-completed block hour and departure basis, plus a margin based on performance incentives (the "SkyWest Airlines United Express Agreement"). SkyWest Airlines currently conducts its Alaska and US Airways operations pursuant to the terms of code-share agreements with Alaska and US Airways, respectively, pursuant to which SkyWest Airlines is paid primarily on a fee-per-completed block hour and departure basis, plus a fixed margin per aircraft each month, and an incentive or penalty based on performance incentives. During 2012, SkyWest Airlines entered into a code-share agreement with American (the "SkyWest Airlines American Agreement"),

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pursuant to which SkyWest Airlines currently operates as American Eagle on designated routes, and is paid primarily on a fee-per-completed block hour and departure basis, plus a fixed margin per aircraft each month and an incentive or penalty based on performance incentives.

        ExpressJet provides regional jet service principally in the United States, primarily from airports located in Atlanta, Cleveland, Chicago (O'Hare), Denver, Houston, Detroit, Memphis, Newark, Minneapolis and Washington Dulles. ExpressJet offered more than 2,125 daily scheduled departures as of December 31, 2012, of which approximately 750 were Delta Connection flights and 1,375 were United Express flights. As of December 31, 2012, the ExpressJet fleet consisted of 18 CRJ900s (all of which were flown for Delta), 41 CRJ700s (all of which were flown for Delta), 107 CRJ200s (93 of which were flown for Delta and 14 of which were flown for United), 242 ERJ145s, (all of which were flown for United) and seven ERJ135s(all of which were flown for United).

        ExpressJet currently conducts Delta Connection operations pursuant to the terms of a Second Amended and Restated Delta Connection Agreement initially executed between Delta and Atlantic Southeast and to which ExpressJet is now a party (the "ExpressJet Delta Connection Agreement"). Under the ExpressJet Delta Connection Agreement, ExpressJet is paid primarily on a fee-per-completed block hour and departure basis, plus, if ExpressJet completes a certain minimum percentage of its Delta Connection flights, a specified margin on such costs. Additionally, the ExpressJet Delta Connection Agreement provides for incentive compensation upon satisfaction of certain performance goals. ExpressJet's United code-share operations are conducted under a Capacity Purchase Agreement initially executed by ExpressJet and Continental Airlines, Inc. ("Continental") and to which United became a party through its merger with Continental (the "United CPA") and two United Express Agreements between ExpressJet and United (collectively, the "ExpressJet United Express Agreements"). Under the ExpressJet United Express Agreements and the United CPA ExpressJet is paid by United, primarily on a fee-per-completed block hour and departure basis, plus a margin based on performance incentives. During 2012, ExpressJet entered into a code-share agreement with American, pursuant to which ExpressJet is paid primarily on a fee-per-completed block hour and departure basis, plus a fixed margin per aircraft each month and an incentive or penalty based on performance incentives. ExpressJet is scheduled to begin operations with American during February 2013.

Competition and Economic Conditions

        The airline industry is highly competitive. SkyWest Airlines and ExpressJet compete principally with other code-sharing regional airlines, but also with regional airlines operating without code-share agreements, as well as low-cost carriers and major airlines. The combined operations of SkyWest Airlines and ExpressJet extend throughout most major geographic markets in the United States. Our competition includes, therefore, nearly every other domestic regional airline, and to a certain extent, most major and low-cost domestic carriers. The primary competitors of SkyWest Airlines and ExpressJet among regional airlines with code-share arrangements include Air Wisconsin Airlines Corporation ("Air Wisconsin"), American Eagle Airlines, Inc. ("American Eagle") (owned by American), Compass Airlines ("Compass"), Horizon Air Industries, Inc. ("Horizon") (owned by Alaska Air Group, Inc. , Mesa Air Group, Inc. ("Mesa"), Pinnacle Airlines Corp. ("Pinnacle"), Republic Airways Holdings Inc. ("Republic"), Trans State Airlines, Inc. ("Trans State") and PSA Airlines, Inc. ("PSA") (owned by US Airways). Major airlines award contract flying to these regional airlines based primarily upon, the following criteria: low cost, financial resources, overall customer service levels relating to on-time arrival and departure statistics, cancellation of flights, baggage handling performance and the overall image of the regional airline as a whole. The principal competitive factors

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we experience with respect to our pro-rate flying include fare pricing, customer service, routes served, flight schedules, aircraft types and relationships with major partners.

        The principal competitive factors for code-share partner regional airlines are code-share agreement terms, customer service, aircraft types, fare pricing, flight schedules and markets and routes served. The combined operations of SkyWest Airlines and ExpressJet represent the largest regional airline operation in the United States. However, some of the major and low-cost carriers are larger, and have greater financial and other resources than SkyWest Airlines and ExpressJet, individually or collectively. Additionally, regional carriers owned by major airlines, such as American Eagle and PSA, may have access to greater resources, through their parent companies, than SkyWest Airlines and ExpressJet, and may have enhanced competitive advantages since they are subsidiaries of major airlines. Moreover, federal deregulation of the industry allows competitors to rapidly enter our markets and to quickly discount and restructure fares. The airline industry is particularly susceptible to price discounting because airlines incur only nominal costs to provide service to passengers occupying otherwise unsold seats.

        Generally, the airline industry is highly sensitive to general economic conditions, in large part due to the discretionary nature of a substantial percentage of both business and leisure travel. Many airlines have historically reported lower earnings or substantial losses during periods of economic recession, heavy fare discounting, high fuel costs and other disadvantageous environments. Economic downturns, combined with competitive pressures, have contributed to a number of reorganizations, bankruptcies, liquidations and business combinations among major and regional carriers. The effect of economic downturns may be somewhat mitigated by the predominantly contract-based flying arrangements of SkyWest Airlines and ExpressJet. Nevertheless, the per-passenger component in such fee structure would be affected by an economic downturn. In addition, if Delta or United, or any of our other code-share partners, experience a prolonged decline in passenger load or are negatively affected by low ticket prices or high fuel prices, they will likely seek to renegotiate their code-share agreements with SkyWest Airlines and ExpressJet, as applicable, or cancel flights in order to reduce their costs.

Industry Overview

        The airline industry in the United States has traditionally been dominated by several major airlines, including American, Delta, US Airways and United. The major airlines offer scheduled flights to most major U.S. cities, numerous smaller U.S. cities, and cities throughout the world through a hub and spoke network.

        Low-cost carriers, such as Southwest Airlines Co. ("Southwest"), JetBlue Airways Corporation ("JetBlue") and Republic, generally offer fewer conveniences to travelers and have lower cost structures than major airlines, which permits them to offer flights to and from many of the same markets as the major airlines, but at lower prices. Low-cost carriers typically fly direct flights with limited service to smaller cities, concentrating on higher demand flights to and from major population bases.

        Regional airlines, such as SkyWest Airlines, ExpressJet, Mesa, Air Wisconsin, Pinnacle, Compass, Mesaba, Trans State and Republic, typically operate smaller aircraft on lower-volume routes than major and low-cost carriers. Several regional airlines, including American Eagle, PSA, and Horizon, are wholly-owned subsidiaries of major airlines.

        In contrast to low-cost carriers, regional airlines generally do not try to establish an independent route system to compete with the major airlines. Rather, regional airlines typically enter into relationships with one or more major airlines, pursuant to which the regional airline agrees to use its smaller, lower-cost aircraft to carry passengers booked and ticketed by the major airline between a hub of the major airline and a smaller outlying city. In exchange for such services, the major airline pays

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the regional airline either a fixed flight fee, termed "contract" or "fixed-fee" flights, or receives a percentage of applicable ticket revenues, termed "pro-rate" or "revenue-sharing" flights.

        Regional airlines generally enter into code-share agreements with major airlines, pursuant to which the regional airline is authorized to use the major airline's two-letter flight designator codes to identify the regional airline's flights and fares in the central reservation systems, to paint its aircraft with the colors and/or logos of its code-share partner and to market and advertise its status as a carrier for the code-share partner. For example, SkyWest Airlines flies out of Chicago (O'Hare), Washington Dulles, Denver, Houston, Los Angeles and San Francisco as United Express, out of Salt Lake City and Minneapolis as Delta Connection, out of Seattle and Portland as an Alaska carrier, out of Phoenix as a US Airways carrier and out of Los Angeles as American Eagle. ExpressJet operates primarily as Delta Connection out of Atlanta and Detroit and as United Express out of Chicago (O'Hare), Houston, Cleveland, Newark, Denver and Washington Dulles. Code-share agreements also generally obligate the major airline to provide services such as reservations, ticketing, ground support and gate access to the regional airline, and both partners often coordinate marketing, advertising and other promotional efforts. In exchange, the regional airline provides a designated number of low-capacity (usually between 30 and 70 seats) flights between larger airports served by the major airline and surrounding cities, usually in lower-volume markets. The financial arrangements between the regional airlines and their code-share partners usually involve contractual or fixed-fee payments based on the flights or a revenue-sharing arrangement based on the flight ticket revenues, as explained below:

Code-Share Agreements

        SkyWest Airlines and ExpressJet operate under United Express Agreements with United. SkyWest Airlines and ExpressJet operate under Delta Connection Agreements with Delta. ExpressJet operates under the United CPA with United. SkyWest Airlines and ExpressJet operate under capacity purchase agreements with American. SkyWest Airlines operates under code-share agreements with US Airways and Alaska.

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        These code-share agreements authorize Delta, United, American, Alaska and US Airways to identify our flights and fares under their two-letter flight designator codes ("DL," "UA" "AA", "AS" or "US," respectively) in the central reservation systems, and generally require us to paint our aircraft with their colors and logos and to market our status as Delta Connection, United Express, American Eagle, US Airways Express or Alaska, as applicable. Under each of our code-share agreements, our passengers participate in the major partner's frequent flyer program, and the major partner provides additional services such as reservations, ticket issuance, ground support services and gate access. We also coordinate our marketing, advertising and other promotional efforts with our major partners. During the year ended December 31, 2012, approximately 91% of our passenger revenues related to contract flights, where Delta, United, Alaska and US Airways controlled scheduling, ticketing, pricing and seat inventories. The remainder of our passenger revenues during the year ended December 31, 2012 related to pro-rate flights, where we controlled scheduling, ticketing, pricing and seat inventories, and shared revenues with Delta or United according to pro-rate formulas. The following summaries of our code-share agreements do not purport to be complete and are qualified in their entirety by reference to the applicable agreement.

SkyWest Airlines Delta Connection Agreement

        SkyWest Airlines and Delta are parties to the SkyWest Airlines Delta Connection Agreement, dated as of September 8, 2005. As of December 31, 2012, SkyWest Airlines operated 28 CRJ900s, 19 CRJ700s and 45 CRJ200s under the SkyWest Airlines Delta Connection Agreement. As of December 31, 2012, SkyWest Airlines was operating more than 500 Delta Connection flights per day between Salt Lake City, Detroit or Minneapolis and outlying destinations. Additionally, as of December 31, 2012, SkyWest Airlines operated eight Brasilia turboprops and nine CRJ200 under the Delta code under a revenue-sharing arrangement. Generally, Delta is entitled to all passenger, cargo and other revenues associated with each flight.

        In exchange for providing the designated number of flights and performing SkyWest Airlines' other obligations under the SkyWest Airlines Delta Connection Agreement, SkyWest Airlines is scheduled to receive from Delta on a weekly basis (i) specified fixed rate payments for each completed flight, which are intended to pay for certain costs related to the Delta Connection flights, plus (ii) a fixed dollar payment per completed flight block hour, subject to annual escalation at an agreed rate. Costs directly reimbursed by Delta under the SkyWest Airlines Delta Connection Agreement include costs primarily related to fuel, aircraft engine maintenance and aircraft ownership.

        The SkyWest Airlines Delta Connection Agreement provides that, beginning with the fifth anniversary of the execution of the agreement (September 8, 2010), Delta has the right to require that certain contractual rates under that agreement shall not exceed the second lowest rates of all carriers within the Delta Connection Program. On November 19, 2010, SkyWest Airlines reached an agreement with Delta related to the second lowest rate provisions to be applied under the SkyWest Airlines Delta Connection Agreement. As a result of that agreement, SkyWest Airlines and Delta have established the contractual rates which will apply under the SkyWest Airlines Delta Connection Agreement through December 31, 2015.

        The SkyWest Airlines Delta Connection Agreement is scheduled to terminate on December 31, 2022, unless Delta elects to exercise its option to extend the term for up to four additional five-year terms. The SkyWest Airlines Delta Connection Agreement is subject to early termination in various circumstances, including:

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ExpressJet Delta Connection Agreement

        ExpressJet and Delta are parties to the ExpressJet Delta Connection Agreement, originally dated as of September 8, 2005. As of December 31, 2012, ExpressJet operated 18 CRJ900s, 41 CRJ700s and 93 CRJ200s for Delta under the ExpressJet Delta Connection Agreement. As of December 31, 2012, ExpressJet was operating more than 750 Delta Connection flights per day between Atlanta or Detroit and outlying destinations. Under the ExpressJet Delta Connection Agreement, Delta is entitled to all passenger, cargo and other revenues associated with each flight. Commencing in 2008, ExpressJet obtained the right to maintain its percentage of total Delta Connection flights that it had in 2007, so long as its bid for additional regional flying is competitive with bids submitted by other regional carriers.

        In exchange for providing the designated number of flights and performing ExpressJet's other obligations under the ExpressJet Delta Connection Agreement, ExpressJet is scheduled to receive from Delta on a weekly basis (i) specified fixed rate payments for each completed flight, which are intended to pay for certain direct costs related to Delta Connection flights plus (ii) if ExpressJet completes a certain minimum percentage of its Delta Connection flights, an amount equal to a certain percentage of the direct costs (not including fuel costs) related to the Delta Connection flights. Costs directly reimbursed by Delta under the ExpressJet Delta Connection Agreement include costs related to fuel, ground handling, and aircraft engine maintenance and aircraft ownership. The ExpressJet Delta Connection Agreement also provides for incentive compensation based upon ExpressJet's performance, including on-time arrival performance and completion percentage rates.

        The ExpressJet Delta Connection Agreement provides that, upon the fifth anniversary of the execution of the agreement (September 8, 2010), Delta obtained the right to require that certain contractual rates under that agreement shall not exceed the second lowest rates of all carriers within the Delta Connection Program. On November 19, 2010, ExpressJet (formerly Atlantic Southeast) reached an agreement with Delta related to the second lowest rate provisions to be applied under the ExpressJet Delta Connection Agreement. As a result of that agreement, ExpressJet and Delta have established the contractual rates which will apply under the ExpressJet Delta Connection Agreement through December 31, 2015.

        The ExpressJet Delta Connection Agreement is scheduled to terminate on September 8, 2020, unless Delta elects to exercise its option to extend the term for up to four additional five-year terms. The ExpressJet Delta Connection Agreement is subject to early termination in various circumstances including:

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        During 2012, we reached an agreement with Delta to add 34 additional used dual-class Bombardier regional jet aircraft in exchange for the early termination of 66 CRJ200 aircraft under our Delta Connection Agreements. All 34 dual-class aircraft will be operated under the terms and conditions of the SkyWest Airlines Delta Connection Agreement regardless of whether SkyWest Airlines or ExpressJet operate the aircraft. The 34 additional aircraft consist of five CRJ700s and 29 CRJ900s. As of December 31, 2012, we had taken delivery of 15 CRJ900s and five CRJ700s. Of the 20 dual-class aircraft that were in operation as of December 31, 2012, ExpressJet was operating 11. The remaining lease terms of the 34 additional aircraft currently run through December 31, 2022. We anticipate that the 14 remaining CRJ900 aircraft will be delivered by June 2013. We anticipate that all 66 CRJ200 aircraft will be removed from the Delta Connection Agreements by December 31, 2015. Of the 66 CRJ200s scheduled to be removed from Delta operations, 41 CRJ200s are subleased from Delta for a nominal amount, which are scheduled to be returned to Delta without obligation to us.

SkyWest Airlines United Express Agreement

        SkyWest Airlines and United are parties to the SkyWest Airlines United Express Agreement entered into on July 31, 2003. As of December 31, 2012, SkyWest Airlines operated 70 CRJ700s, 78 CRJ200s and 34 Brasilia turboprops under the SkyWest Airlines United Express Agreement, flying a total of approximately 1,050 United Express flights per day between Chicago (O'Hare), Denver, Houston, Los Angeles, San Francisco or Washington Dulles and designated outlying destinations. Generally, under the SkyWest Airlines United Express Agreement, United retains all air fares, cargo rates, mail charges and other revenues associated with each flight.

        In exchange for providing the designated number of flights and performing SkyWest Airlines' obligations under the SkyWest Airlines United Express Agreement, SkyWest Airlines receives from United compensation (subject to an annual adjustment) of a fixed fee per completed block hour, a fixed fee per completed departure, a fixed fee per passenger, and a fixed fee for overhead and aircraft costs. The SkyWest Airlines United Express Agreement provides for incentives based upon SkyWest Airlines' performance, including on-time arrival performance and completion percentage rates. Additionally, certain of SkyWest Airlines' operating costs are reimbursed by United, including costs related to fuel and aircraft ownership. As of December 31, 2012, 25 of the 34 Brasilia turboprops and 17 of the 78 CRJ200s SkyWest Airlines operated under the SkyWest Airlines United Express Agreement were operated under a revenue-sharing arrangement. On October 16, 2009, SkyWest Airlines and United agreed to extend the right of SkyWest Airlines to operate 40 regional jet aircraft under the SkyWest Airlines United Express Agreement until the end of their respective lease terms.

        United has the option, upon twelve months prior notice, to extend the SkyWest Airlines United Express Agreement for five years. The SkyWest Airlines United Express Agreement is scheduled to

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terminate in 2024. The SkyWest Airlines United Express Agreement is subject to early termination in various circumstances including:

ExpressJet United CPA

        Effective November 12, 2010, ExpressJet Delaware and Continental entered into the United CPA, whereby ExpressJet Delaware agreed to provide regional airline service in the Continental flight system. The rights and obligations of ExpressJet Delaware under the United CPA became the rights and obligations of ExpressJet as a consequence of the ExpressJet Combination. The rights and obligations of Continental under the United CPA became the rights and obligations of United as a consequence of United's merger with Continental in 2010.

        The United CPA provides for a ten-year term, subject to early termination by United or ExpressJet upon the occurrence of certain events. United's termination rights include the right to terminate the United CPA if ExpressJet's performance falls below identified standards (and such failure is not cured within 60 days following receipt of notice), upon the occurrence of a labor strike lasting 15 days or longer and upon the occurrence of a material default under certain lease agreements relating to aircraft operated by ExpressJet under the United CPA (provided that such material default is not cured within 60 days following receipt of notice). ExpressJet's termination rights include the right to terminate the United CPA if United fails to make payment of $500,000 or more due to ExpressJet under the United CPA and such failure is not cured within five business days following receipt of notice.

        Under the terms of the United CPA, ExpressJet operates 220 ERJ145s and seven ERJ135s in the United flight system. All of the ERJ145s and ERJ 135s are leased to ExpressJet by United pursuant to sublease or lease agreements. Upon the expiration of the United CPA, ExpressJet is obligated to return the subleased or leased aircraft to United.

        Under the terms of the United CPA, United has agreed to compensate ExpressJet on a monthly basis based on the block hours flown by ExpressJet and the weighted average number of aircraft operated by ExpressJet under the United CPA. Additionally, ExpressJet may earn incentive compensation for good operating performance, but is subject to financial penalties for poor operating performance. The parties to the United CPA have made customary representations, warranties and covenants, and the United CPA contains other provisions typical of agreements of this kind, including with respect to various operational, marketing and administrative matters.

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ExpressJet United Express Agreements

        ExpressJet and United are parties to two ExpressJet United Express Agreements, consisting of a United Express Agreement initially executed between ExpressJet Delaware and United, dated December 1, 2009, and a United Express Agreement initially executed between Atlantic Southeast and United, dated February 10, 2010. As of December 31, 2012, ExpressJet operated 22 ERJ145s and 14 CRJ200s under the United Express Agreements. Generally, under the ExpressJet United Express Agreements, United retains all air fares, cargo rates, mail charges and other revenues associated with each flight.

        In exchange for providing the designated number of flights and performing ExpressJet's obligations under the ExpressJet United Express Agreements, ExpressJet receives from United compensation (subject to an annual adjustment) of a fixed fee per completed block hour, fixed fee per completed departure, fixed fee per passenger and a fixed fee for overhead and aircraft costs. The ExpressJet United Express Agreements provide for incentives based upon ExpressJet's performance, including on-time arrival performance and completion percentage rates. Additionally, certain of ExpressJet's operating costs are reimbursed by United, including fuel costs.

        ExpressJet's rights to fly aircraft under the ExpressJet United Express Agreements expire in two tranches: the agreements expire with respect to 22 ERJ145s on April 30, 2015, and 14 CRJ200s during 2015. Under the agreements, United must notify ExpressJet of its intention to renew each tranche of aircraft not less than six months prior to the end of the term for such aircraft.

SkyWest Airlines American Agreement

        On September 11, 2012, SkyWest Airlines and American entered into the SkyWest Airlines American Agreement. As of December 31, 2012, SkyWest Airlines operated 12 CRJ200s under the SkyWest Airlines American Agreement, flying approximately 85 American Eagle flights per day between Los Angeles and designated outlying destinations. Generally, under the SkyWest Airlines American Agreement, American retains all air fares, cargo rates, mail charges and other revenues associated with each flight.

        In exchange for providing the designated number of flights and performing SkyWest Airlines' obligations under the SkyWest Airlines American Agreement, SkyWest Airlines receives from American compensation (subject to an annual adjustment) of a fixed fee per completed block hour, a fixed fee per completed departure, a fixed fee per passenger, and a fixed fee for overhead and aircraft costs. The SkyWest Airlines American Agreement provides for incentives and penalties based upon SkyWest Airlines' performance, including on-time arrival performance, completion percentage rates and customer complaints. Additionally, certain of SkyWest Airlines' operating costs are reimbursed or paid directly by American, including costs related to fuel.

        The SkyWest Airlines American Agreement is scheduled to terminate in 2016. The SkyWest Airlines American Agreement is subject to early termination in various circumstances including:

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ExpressJet American Agreement

        On September 11, 2012, ExpressJet and American entered into the ExpressJet American Agreement. During the first quarter of 2013, ExpressJet is scheduled to begin operating 11 CRJ200s under the ExpressJet American Agreement between Dallas and designated outlying destinations. Generally, under the ExpressJet American Agreement, American retains all air fares, cargo rates, mail charges and other revenues associated with each flight.

        In exchange for providing the designated number of flights and performing ExpressJet's obligations under the ExpressJet American Agreement, ExpressJet is entitled to receive from American compensation (subject to an annual adjustment) of a fixed fee per completed block hour, a fixed fee per completed departure, a fixed fee per passenger, and a fixed fee for overhead and aircraft costs. The ExpressJet American Agreement provides for incentives and penalties based upon ExpressJet's performance, including on-time arrival performance, completion percentage rates and customer complaints. Additionally, certain of ExpressJet's operating costs are reimbursed or paid directly by American, including costs related to fuel.

        The ExpressJet American Agreement is scheduled to terminate in 2017. The ExpressJet American Agreement is subject to early termination in various circumstances including:

SkyWest Airlines Alaska Capacity Purchase Agreement

        On April 13, 2011, SkyWest Airlines and Alaska entered into the SkyWest Airlines Alaska Capacity Purchase Agreement. As of December 31, 2012, SkyWest Airlines operated five CRJ700s under the SkyWest Airlines Alaska Capacity Purchase Agreement, flying approximately 25 Alaska flights per day between Seattle or Portland and designated outlying destinations. Generally, under the SkyWest Airlines Alaska Capacity Purchase Agreement, Alaska retains all air fares, cargo rates, mail charges and other revenues associated with each flight.

        In exchange for providing the designated number of flights and performing SkyWest Airlines' obligations under the SkyWest Airlines Alaska Capacity Purchase Agreement, SkyWest Airlines receives from Alaska compensation (subject to an annual adjustment) of a fixed fee per completed block hour, a fixed fee per completed departure, a fixed fee per passenger, and a fixed fee for overhead and aircraft costs. Additionally, certain of SkyWest Airlines' operating costs are reimbursed or paid directly by Alaska, including costs related to fuel and aircraft ownership.

        The SkyWest Airlines Alaska Capacity Purchase Agreement is scheduled to terminate in 2018. The SkyWest Airlines Alaska Capacity Purchase Agreement is subject to early termination in various circumstances including:

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SkyWest Airlines US Airways Express Agreement

        On November 17, 2011, SkyWest Airlines and US Airways entered into the SkyWest Airlines US Airways Express Agreement. As of December 31, 2012, SkyWest Airlines operated 14 CRJ200s under the SkyWest Airlines US Airways Express Agreement, flying a total of approximately 90 US Airways Express flights per day between Phoenix and designated outlying destinations. Additionally, as of December 31, 2012, SkyWest Airlines operated one CRJ200s under a revenue-sharing arrangement. Generally, under the SkyWest Airlines US Airways Express Agreement, US Airways retains all air fares, cargo rates, mail charges and other revenues associated with each flight.

        In exchange for providing the designated number of flights and performing SkyWest Airlines' obligations under the SkyWest Airlines US Airways Express Agreement, SkyWest Airlines receives from US Airways compensation (subject to an annual adjustment) of a fixed fee per completed block hour, a fixed fee per completed departure, a fixed fee per passenger, and a fixed fee for overhead and aircraft costs. The SkyWest Airlines US Airways Express Agreement provides for incentives and penalties based upon SkyWest Airlines' performance, including on-time arrival performance and completion percentage rates. Additionally, certain of SkyWest Airlines' operating costs are reimbursed by US Airways, including costs related to fuel and insurance.

        The SkyWest Airlines US Airways Agreement is scheduled to terminate in 2015. The SkyWest Airlines US Airways Express Agreement is subject to early termination in various circumstances including:

Markets and Routes

        As of December 31, 2012, SkyWest Airlines and ExpressJet scheduled the following daily flights as a United Express carrier: 610 flights to or from Houston International Airport, 425 flights to or from Chicago O'Hare International Airport, 325 flights to or from Denver International Airport, 300 flights to or from San Francisco International Airport, 250 flights to or from Los Angeles International Airport, 275 flights to or from Newark International Airport, 150 flights to or from Washington Dulles International Airport and 90 flights to or from Cleveland International Airport.

        As of December 31, 2012, SkyWest Airlines and ExpressJet scheduled the following daily flights as Delta Connection carriers: 530 flights to or from Hartsfield—Jackson Atlanta International Airport, 300 flights to or from Salt Lake City International Airport, 175 flights to or from Minneapolis International Airport, 125 flights to or from Detroit International Airport, 70 flights to or from Memphis International Airport and 50 flights to or from Cincinnati/Northern Kentucky International Airport.

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        As of December 31, 2012, SkyWest Airlines scheduled 90 daily flights as a US Airways Express carrier to or from Phoenix International Airport.

        As of December 31, 2012, SkyWest Airlines scheduled 85 daily flights as an American Eagle carrier to or from Los Angeles International Airport.

        As of December 31, 2012, SkyWest Airlines scheduled ten daily flights as an Alaska carrier to or from Portland International Airport and 15 daily flights as an Alaska carrier to or from Seattle-Tacoma International Airport.

        Our flight schedules are structured to facilitate the connection of our passengers with flights of our major partners at the airports we serve.

Training and Aircraft Maintenance

        SkyWest Airlines and ExpressJet employees perform substantially all routine airframe and engine maintenance and periodic inspection of equipment at their respective maintenance facilities, and provide substantially all training to SkyWest Airlines and ExpressJet crew members and maintenance personnel at their respective training facilities. SkyWest Airlines and ExpressJet also contract with third party vendors for non-routine airframe and engine maintenance.

Fuel

        Historically, we have not experienced problems with the availability of fuel, and believe we will be able to obtain fuel in quantities sufficient to meet our existing and anticipated future requirements at competitive prices. Standard industry contracts generally do not provide protection against fuel price increases, nor do they ensure availability of supply; however, our code-share agreements with Delta, United, American, Alaska and US Airways provide for fuel used in the performance of the code-share agreements to be reimbursed by our major partners, thereby reducing our exposure to fuel price fluctuations. During the year ended December 31, 2012, United purchased the majority of the fuel for our United aircraft under contract directly from its fuel vendors; and Delta purchased the majority of the fuel for our Delta aircraft under contract directly from its fuel vendors. A substantial increase in the price of jet fuel, to the extent our fuel costs are not reimbursed, or the lack of adequate fuel supplies in the future, could have a material adverse effect on our business, financial condition, results of operations or liquidity.

Employee Matters

Railway Labor Act

        Our relations with labor unions in the U.S. are governed by the Railway Labor Act (the "RLA"). Under the RLA, a labor union seeking to represent an unrepresented craft or class of employees is required to file with the National Mediation Board (the "NMB") an application alleging a representation dispute, along with authorization cards signed by at least 35% of the employees in that craft or class. The NMB then investigates the dispute and, if it finds the labor union has obtained a sufficient number of authorization cards, conducts an election to determine whether to certify the labor union as the collective bargaining representative of that craft or class. Under the NMB's usual rules, a labor union will be certified as the representative of the employees in a craft or class only if more than 50% of those employees vote for union representation. A certified labor union then enters into negotiations toward a collective bargaining agreement with the employer.

        Under the RLA, a collective bargaining agreement between an airline and a labor union does not expire, but instead becomes amendable as of a stated date. Either party may request that the NMB appoint a federal mediator to participate in the negotiations for a new or amended agreement. If no agreement is reached in mediation, the NMB may determine, at any time, that an impasse exists and

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offer binding arbitration. If either party rejects binding arbitration, a 30-day "cooling off" period begins. At the end of this 30-day period, the parties may engage in "self help," unless the U.S. President appoints a Presidential Emergency Board ("PEB") to investigate and report on the dispute. The appointment of a PEB maintains the "status quo" for an additional 60 days. If the parties do not reach agreement during this period, the parties may then engage in "self help." "Self help" includes, among other things, a strike by the union or the imposition of proposed changes to the collective bargaining agreement by the airline. Congress and the President have the authority to prevent "self help" by enacting legislation that, among other things, imposes a settlement on the parties.

Collective Bargaining

        As of December 31, 2012, we had 18,145 full-time equivalent employees. Approximately 42% of these employees were represented by unions, including the employee groups listed in the table below. Notwithstanding the completion of the ExpressJet Combination, ExpressJet's employee groups continue to be represented by those unions who provided representation prior to the ExpressJet Combination. Accordingly, the following table refers to ExpressJet's employee groups based upon their union affiliations prior to the ExpressJet Combination.

Employee Group
  Approximate
Number of
Active Employees
Represented 		  Representatives   Status of Agreement

Atlantic Southeast Pilots

     1,620   Air Line Pilots Association International   Amendable

Atlantic Southeast Flight Attendants

     940   International Association of Machinists and Aerospace Workers   Amendable

Atlantic Southeast Flight Controllers

     70   Transport Workers Union of America   Amendable

Atlantic Southeast Mechanics

     420   International Brotherhood of Teamsters   Amendable

Atlantic Southeast Stock Clerks

     70   International Brotherhood of Teamsters   Amendable

ExpressJet Delaware Pilots

     2,560   Air Line Pilots Association International   Amendable

ExpressJet Delaware Flight Attendants

     1,200   International Association of Machinists and Aerospace Workers   Amendable

ExpressJet Delaware Mechanics

     670   International Brotherhood of Teamsters   Amendable

ExpressJet Delaware Dispatchers

     80   Transport Workers Union of America   Amendable

ExpressJet Delaware Stock Clerks

     75   International Brotherhood of Teamsters   Amendable

        The successful combination of the employee groups of ExpressJet Delaware and Atlantic Southeast and achievement of the anticipated benefits of our acquisition of ExpressJet Delaware will depend significantly on the results of our efforts to integrate the work groups of Atlantic Southeast and

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ExpressJet Delaware and on maintaining productive employee relations. The integration of the workforces of ExpressJet Delaware and Atlantic Southeast has been, and we anticipate it will continue to be, challenging. Completing the integration of the workforces of the two airlines will require the resolution of potentially difficult issues relating to representation of various work groups and the relative seniority of the work groups at each carrier. Unexpected delays or expenses or other challenges to integrating the workforces could impact the anticipated synergies from the ExpressJet Combination and affect our financial performance.

        As of December 31, 2012, SkyWest and SkyWest Airlines collectively employed 9,300 full-time equivalent employees, consisting of 5,377 pilots and flight attendants, 2,441 customer service personnel, 1,281 mechanics and other maintenance personnel, and 201 administration and support personnel. None of these employees are currently represented by a union. Collective bargaining group organization efforts among SkyWest Airlines' employees do, however, occur from time to time and we anticipate that such efforts will continue in the future. If unionization efforts are successful, we may be subjected to risks of work interruption or stoppage and/or incur additional expenses associated with increased union representation of our employees. Neither SkyWest nor SkyWest Airlines has ever experienced a work stoppage due to a strike or other labor dispute, and we consider SkyWest Airlines' relationships with its employees to be good.

Government Regulation

        All interstate air carriers, including SkyWest Airlines and ExpressJet, are subject to regulation by the U.S. Department of Transportation (the "DOT"), the FAA and other governmental agencies. Regulations promulgated by the DOT primarily relate to economic aspects of air service. The FAA requires operating, air worthiness and other certificates; approval of personnel who may engage in flight, maintenance or operating activities; record-keeping procedures in accordance with FAA requirements; and FAA approval of flight training and retraining programs. Generally, governmental agencies enforce their regulations through, among other methods, certifications, which are necessary for the continued operations of SkyWest Airlines and ExpressJet, and proceedings, which can result in civil or criminal penalties or revocation of operating authority. The FAA can also issue maintenance directives and other mandatory orders relating to, among other things, grounding of aircraft, inspection of aircraft, installation of new safety-related items and the mandatory removal and replacement of aircraft parts.

        We believe SkyWest Airlines and ExpressJet are operating in compliance with FAA regulations and hold all operating and airworthiness certificates and licenses which are necessary to conduct their respective operations. We incur substantial costs in maintaining current certifications and otherwise complying with the laws, rules and regulations to which SkyWest Airlines and ExpressJet are subject. SkyWest Airlines' and ExpressJet's flight operations, maintenance programs, record keeping and training programs are conducted under FAA approved procedures. SkyWest Airlines and ExpressJet do not currently operate at any airports where landing slots are restricted.

        All air carriers operating in the United States of America are required to comply with federal laws and regulations pertaining to noise abatement and engine emissions. All such air carriers are also subject to certain provisions of the Federal Communications Act of 1934, as amended, because of their extensive use of radio and other communication facilities. SkyWest Airlines and ExpressJet are also subject to certain federal and state laws relating to protection of the environment, labor relations and equal employment opportunity. We believe SkyWest Airlines and ExpressJet are in compliance in all material respects with these laws and regulations.

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Environmental Matters

        SkyWest, SkyWest Airlines and ExpressJet are subject to various federal, state, local and foreign laws and regulations relating to environmental protection matters. These laws and regulations govern such matters as environmental reporting, storage and disposal of materials and chemicals and aircraft noise. We are, and expect in the future to be, involved in various environmental matters and conditions at, or related to, our properties. We are not currently subject to any environmental cleanup orders or actions imposed by regulatory authorities. We are not aware of any active material environmental investigations related to our assets or properties.

Safety and Security

        We are committed to the safety and security of our passengers and employees. Since the September 11, 2001 terrorist attacks, SkyWest Airlines and ExpressJet have taken many steps, both voluntarily and as mandated by governmental agencies, to increase the safety and security of their operations. Some of the safety and security measures we have taken with our code-share partners include: aircraft security and surveillance, positive bag matching procedures, enhanced passenger and baggage screening and search procedures, and securing of cockpit doors. We are committed to complying with future safety and security requirements.

Insurance

        SkyWest, SkyWest Airlines and ExpressJet maintain insurance policies we believe are of types customary in the industry and in amounts we believe are adequate to protect against material loss. These policies principally provide coverage for public liability, passenger liability, baggage and cargo liability, property damage, including coverage for loss or damage to our flight equipment, and workers' compensation insurance. We cannot assure, however, that the amount of insurance we carry will be sufficient to protect us from material loss.

Seasonality

        Our results of operations for any interim period are not necessarily indicative of those for the entire year, in part because the airline industry is subject to seasonal fluctuations and general economic conditions. Our operations are somewhat favorably affected by pleasure travel on our pro-rate routes, historically contributing to increased travel in the summer months, and are unfavorably affected by decreased business travel during the months from November through January and by inclement weather which occasionally results in cancelled flights, principally during the winter months.

ITEM 1A.    RISK FACTORS

        In addition to factors discussed elsewhere in this Report, the following are important risks which could adversely affect our future results. Additional risks and uncertainties not presently known to us or that we currently do not deem material may also impair our business operations. If any of the risks we describe below occur, or if any unforeseen risk develops, our operating results may suffer, our financial condition may deteriorate, the trading price of our common stock may decline and investors could lose all or part of their investment in us.


 Risks Related to Our Operations

We are highly dependent on Delta and United.

        If any of our code-share agreements with Delta or United are terminated, we would be significantly impacted and likely would not have an immediate source of revenue or earnings to offset such loss. A termination of any of these agreements would likely have a material adverse effect on our

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financial condition, operating revenues and net income unless we are able to enter into satisfactory substitute arrangements for the utilization of the affected aircraft by other code-share partners, or, alternatively, obtain the airport facilities and gates and make the other arrangements necessary to fly as an independent airline. We may not be able to enter into substitute code-share arrangements, and any such arrangements we might secure may not be as favorable to us as our current agreements. Operating our airlines independent from major partners would be a significant departure from our business plan, would likely be very difficult and would likely require significant time and resources, which may not be available to us at that point.

        The current terms of the SkyWest Airlines and ExpressJet Delta Connection Agreements are subject to certain early termination provisions. Delta's termination rights include cross-termination rights (meaning that a breach by either of SkyWest Airlines or ExpressJet of its Delta Connection Agreement could, under certain circumstances, permit Delta to terminate any or all of the Delta Connection Agreements), the right to terminate each of the agreements upon the occurrence of certain force majeure events (including certain labor-related events) that prevent SkyWest Airlines or ExpressJet from performance for certain periods and the right to terminate each of the agreements if SkyWest Airlines or ExpressJet, as applicable, fails to maintain competitive base rate costs, subject to certain rights of SkyWest Airlines to take corrective action to reimburse Delta for lost revenues. The current terms of the SkyWest Airlines and ExpressJet United Express Agreements are subject to certain early termination provisions and subsequent renewals. United may terminate the SkyWest Airlines and ExpressJet United Express Agreements due to an uncured breach by SkyWest Airlines or ExpressJet of certain operational or performance provisions, including measures and standards related to flight completions, baggage handling and on-time arrivals. The current terms of the United CPA are subject to certain early termination provisions and subsequent renewals. United may terminate the United CPA due to an uncured breach by ExpressJet of certain operational and performance provisions, including measures and standards related to flight completions and on-time arrivals.

        We currently use the systems, facilities and services of Delta and United to support a significant portion of our operations, including airport and terminal facilities and operations, information technology support, ticketing and reservations, scheduling, dispatching, fuel purchasing and ground handling services. If Delta or United were to cease any of these systems, close any of these facilities or no longer provide these services to us, due to termination of one of our code-share agreements, a strike or other labor interruption by Delta or United personnel or for any other reason, we may not be able to replace those systems, facilities or services on terms and conditions as favorable as those we currently receive, or at all. Since our revenues and operating profits are dependent on our level of flight operations, we could then be forced to significantly reduce our operations. Furthermore, upon certain terminations of our code-share agreements, Delta and United could require us to sell or assign to them facilities and assets, including maintenance facilities, we use in connection with the code-share services we provide. As a result, in order to offer airline service after termination of any of our code-share agreements, we may have to replace these facilities, assets and services. We may be unable to arrange such replacements on satisfactory terms, or at all.

The amounts we receive under our code-share agreements may be less than the corresponding costs we incur.

        Under our code-share agreements with Delta, United, American, Alaska and US Airways, we are compensated for certain costs we incur in providing services. With respect to costs that are defined as "pass-through" costs, our code-share partner is obligated to pay to us the actual amount of the cost. With respect to other costs, our code-share partner is obligated to pay to us amounts based, in part, on pre-determined rates for certain costs. During the year ended December 31, 2012, approximately 25% of our costs were pass-through costs and approximately 75% of our costs were reimbursable at pre-determined rates. These pre-determined rates may not be based on the actual expenses we incur in delivering the associated services. If we incur expenses that are greater than the pre-determined

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reimbursement amounts payable by our code-share partners, our financial results will be negatively affected.

        SkyWest Airlines and ExpressJet are parties to Delta Connection Agreements, pursuant to which SkyWest Airlines and ExpressJet provide contract flight services for Delta. Among other provisions, those Delta Connection Agreements provide that Delta has the right to require that certain contractual rates under those agreements shall not exceed the second lowest rates of all carriers within the Delta Connection Program. On November 19, 2010, SkyWest Airlines and ExpressJet reached agreements with Delta related to the second lowest rate provisions to be applied under their respective Delta Connection Agreements. As a result, SkyWest Airlines and ExpressJet have established the contractual rates which will apply under those agreements through December 31, 2015.

        There can be no assurance that the agreed-upon rates contemplated by our Delta Connection Agreements will be higher than the costs SkyWest Airlines and ExpressJet will incur to provide the services required under their respective Delta Connection Agreement. The new rates and future rate adjustments could negatively affect our financial position and operating results.

Increased labor costs, strikes, labor disputes and increased unionization of our workforces may adversely affect our ability to conduct our business.

        Our business is labor intensive, requiring large numbers of pilots, flight attendants, mechanics and other personnel. Labor costs constitute a significant percentage of our total operating costs. For example, during the year ended December 31, 2012, our salary, wage and benefit costs constituted approximately 35% of our total operating costs. Increases in our labor costs could result in a material reduction in our earnings. Any new collective bargaining agreements entered into by other regional carriers with their work forces may also result in higher industry wages and increased pressure on us to increase the wages and benefits of our employees. Future agreements with unionized and non-unionized employees may be on terms that are not as attractive as our current agreements or comparable to agreements entered into by our competitors.

        Approximately 42% of our workforce is unionized. Strikes or labor disputes with our unionized employees may adversely affect our ability to conduct business. Relations between air carriers and labor unions in the U.S. are governed by the RLA, which provides that a collective bargaining agreement between an airline and a labor union does not expire, but instead becomes amendable as of a stated date. The RLA generally prohibits strikes or other types of self-help actions both before and after a collective bargaining agreement becomes amendable, unless and until the collective bargaining processes required by the RLA have been exhausted.

        SkyWest Airlines' employees are not currently represented by any union; however, collective bargaining group organization efforts among those employees occur from time to time. Such efforts will likely continue in the future and may ultimately result in some or all of SkyWest Airlines' employees being represented by one or more unions. Moreover, one or more unions representing ExpressJet employees may seek a single carrier determination by the National Mediation Board, which could require SkyWest Airlines to recognize such union or unions as the certified bargaining representative of SkyWest Airlines' employees. One or more unions representing ExpressJet employees may also assert that SkyWest Airlines' employees should be subject to ExpressJet's collective bargaining agreements. If SkyWest Airlines' employees were to unionize or be deemed to be represented by one or more unions, negotiations with unions representing SkyWest Airlines' employees could divert management attention and disrupt operations, which may result in increased operating expenses and may negatively impact our financial results. Moreover, we cannot predict the outcome of any future negotiations relating to union representation or collective bargaining agreements. Agreements reached in collective bargaining may increase our operating expenses and negatively impact our financial results.

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Our ability to realize all of the anticipated benefits of our acquisition of ExpressJet Delaware will depend on the successful integration of the operations previously conducted by Atlantic Southeast and ExpressJet Delaware.

        On November 12, 2010, we acquired ExpressJet Delaware through a merger of ExpressJet Holdings, Inc. ("ExpressJet Holdings"), the sole shareholder of ExpressJet Delaware, with a wholly-owned subsidiary of Atlantic Southeast (the "ExpressJet Merger"). Effective December 31, 2011, we combined the operations of Atlantic Southeast and ExpressJet Delaware through the ExpressJet Combination. Many of the potential synergies of our acquisition of ExpressJet Delaware will only result from the successful integration of the operations of Atlantic Southeast and ExpressJet Delaware, both of which operated as independent airlines prior to the ExpressJet Combination. The integration of the operations formerly conducted by Atlantic Southeast and ExpressJet Delaware has required, and will continue to require, our management to devote significant attention and resources to combining the business practices and operations of both airlines. We incurred significant costs, and devoted significant management time, in our efforts to obtain a single operating certificate for the combined operations of Atlantic Southeast and ExpressJet Delaware. Although that single operating certificate was issued by the FAA on November 17, 2011, and the ExpressJet Combination was completed on December 31, 2011, our management and employees will continue to devote significant attention and resources to the successful integration of the operations formerly conducted by Atlantic Southeast and ExpressJet Delaware, particularly with respect to the integration of the work groups of the two airlines.

        The integration of the operations formerly conducted by Atlantic Southeast and ExpressJet Delaware could result in the loss of key employees, diversion of management attention, the disruption or interruption of, or the loss of momentum in, our ongoing businesses or inconsistencies in standards, controls, procedures and policies, any of which could adversely affect our ability to maintain relationships with passengers and employees or our ability to achieve the anticipated benefits of the ExpressJet Merger, or could reduce our earnings or otherwise adversely affect our business and financial results.

The integration of the Atlantic Southeast and ExpressJet Delaware workforces will present significant challenges, including the possibility of labor-related disagreements that may adversely affect our operations.

        The successful integration of Atlantic Southeast and ExpressJet Delaware and achievement of the anticipated benefits of the ExpressJet Merger largely depend upon the successful combination of the former employee groups of Atlantic Southeast and ExpressJet Delaware, and on maintaining productive employee relations. The integration of the workforces of the two airlines will require the resolution of potentially difficult issues relating to representation of various work groups and the relative seniority of the work groups at each carrier. Unexpected delays, expenses or other challenges to integrating the workforces could impact the anticipated synergies from the combination of Atlantic Southeast and ExpressJet Delaware and affect ExpressJet's operations and financial performance.

        In order to integrate the former employee groups of Atlantic Southeast and ExpressJet Delaware, ExpressJet must negotiate a joint collective bargaining agreement covering each combined employee group. The process for integrating the former labor groups of ExpressJet Delaware and Atlantic Southeast is governed by a combination of the RLA, the McCaskill-Bond Amendment, and where applicable, the existing provisions of each company's collective bargaining agreements and union policy. Pending operational integration, ExpressJet will apply the terms of the existing collective bargaining agreements unless other terms have been negotiated. Under the McCaskill-Bond Amendment, seniority integration must be accomplished in a "fair and equitable" manner consistent with the process set forth in the Allegheny-Mohawk Labor Protective Provisions or internal union merger policies, if applicable. Employee dissatisfaction with the results of the seniority integration may lead to litigation that in some cases could delay implementation of the integrated seniority list. The National Mediation Board has exclusive authority to resolve representation disputes arising out of airline mergers.

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        We can provide no assurance that a successful or timely resolution of labor negotiations for the former labor groups of Atlantic Southeast and ExpressJet Delaware will be achieved. There is a risk that unions or individual employees might pursue judicial or arbitral claims arising out of changes implemented as a result of the ExpressJet Combination. There is also a possibility that employees or unions could engage in job actions such as slow-downs, work-to-rule campaigns, sick-outs or other actions designed to disrupt ExpressJet's normal operations, in an attempt to pressure ExpressJet in collective bargaining negotiations. Although the RLA makes such actions unlawful until the parties have been lawfully released to self-help, and ExpressJet can seek injunctive relief against premature self-help, such actions can cause significant harm even if ultimately enjoined.

We may be unable to profitably redeploy smaller aircraft removed from service.

        As of December 31 2012, we had 559 small regional aircraft (37-50 seat aircraft), 557 of which were operating under fixed-fee agreements or revenue-sharing agreements. Between December 2013 and December 2015, 21 of these aircraft are scheduled to be removed from fixed-fee operations. In most cases, the term of the aircraft lease or debt agreement applicable to those 21 aircraft exceeds the term of the fixed-fee agreement for such aircraft. To the extent that aircraft are removed from service, we must either sell or sublease the aircraft to another party or redeploy it in order to cover our carrying expenses for that aircraft. Our inability to sell, sublease and/or redeploy aircraft that have been removed from fixed-fee agreements could have a material adverse effect on our financial condition, results of operations or the price of our common stock.

Maintenance costs will likely continue to increase as the age of our regional jet fleet increases.

        The average age of our CRJ200s, ERJ145s, CRJ700s and CRJ900s is approximately 11.2 years, 11.0 years, 7.6 years and 5.0 years respectively. Most of the parts on these fleets are no longer under warranty and we have started to incur more heavy airframe inspections and engine overhauls on those aircraft. Our non-engine maintenance costs are expected to continue to increase on our CRJ200, ERJ145, CRJ700 and CRJ900 fleets. Our-non engine maintenance costs will increase significantly, both on an absolute basis and as a percentage of our operating expenses, as our fleet ages and these warranties expire. Those increased costs will have a negative impact on our financial results.

We may be negatively impacted if Delta or United experiences significant financial difficulties in the future.

        For the year ended December 31, 2012 approximately 97.0% of the available seat miles ("ASMs") generated in our operations were attributable to our code-share agreements with Delta and United. If Delta or United experiences significant financial difficulties, we would likely be negatively affected. For example, volatility in fuel prices may negatively impact Delta's and United's results of operations and financial condition. Among other risks, Delta and United are vulnerable both to unexpected events (such as additional terrorist attacks or additional spikes in fuel prices) and to deterioration of the operating environment (such as a recession or significant increased competition). There is no assurance that Delta or United will be able to operate successfully under these financial conditions.

        In light of the importance of our code-share agreements with Delta and United to our business, a default by Delta or United under any of these agreements, or the termination of these agreements could jeopardize our operations. Such events could leave us unable to operate many of our current aircraft, as well as additional aircraft we are obligated to purchase, which would likely result in a material adverse effect on our operations and financial condition.

        The financial condition of Delta and United will continue to pose risks for our operations. Serial bankruptcies are not unprecedented in the commercial airline industry, and Delta and/or United could file for bankruptcy, in which case our code-share agreements could be subject to termination under the U.S. Bankruptcy Code. Regardless of whether subsequent bankruptcy filings prove to be necessary,

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Delta and United have required, and will likely continue to require, our participation in efforts to reduce costs and improve their respective financial positions. These efforts could result in lower utilization rates of our aircraft, lower departure rates on the contract flying portion of our business, more volatile operating margins and more aggressive contractual positions, which could result in additional litigation. We believe that any of these developments could have a negative effect on many aspects of our operations and financial condition.

        On October 16, 2009, SkyWest Airlines agreed to defer receipt of certain amounts otherwise payable by United under the SkyWest Airlines United Express Agreement. The maximum deferral amount is $49 million and any amounts deferred accrue a deferral fee of 8%, payable weekly. United's right to defer such payments is scheduled to terminate on October 16, 2019. United's failure to repay the amounts deferred pursuant to the foregoing financing arrangement could have a material adverse effect on our operations and financial condition.

SkyWest Airlines and ExpressJet are engaged in litigation with Delta, which may negatively impact our financial results and our relationship with Delta

        During the quarter ended December 31, 2007, Delta notified SkyWest, SkyWest Airlines and Atlantic Southeast of a dispute under the Delta Connection Agreements executed by Delta with SkyWest Airlines and Atlantic Southeast. The dispute relates to the allocation of liability for certain irregular operation ("IROP") expenses paid by SkyWest Airlines and Atlantic Southeast to their passengers and vendors under certain situations. During the period between the execution of the Delta Connection Agreements in September 2005 and December 2007, SkyWest Airlines and Atlantic Southeast passed through to Delta IROP expenses that were paid pursuant to Delta's policies, and Delta accepted and reimbursed those expenses. Delta now claims it is obligated to reimburse only a fraction of the IROP expenses. As a result, Delta withheld a combined total of approximately $25 million (pre-tax) from one of the weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast during December 2007. Since December 2007, Delta has continued to withhold payments from the weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast (now ExpressJet), and has disputed subsequent billings for IROP expenses. As of December 31, 2012, we had recognized a cumulative total of $31.7 million of revenue associated with the funds withheld by Delta. Since July 1, 2008, we have not recognized revenue related to IROP expense reimbursements withheld by Delta because collection of those reimbursements is the subject of litigation and is not reasonably assured. The current status of the litigation with Delta is summarized below in Item 3. Legal Proceedings.

        There can be no assurance that the dispute between SkyWest Airlines and ExpressJet, on the one hand, and Delta, on the other hand, will be resolved consistent with the position taken by SkyWest Airlines and ExpressJet. If the dispute is not resolved consistent with the position taken by SkyWest Airlines and ExpressJet, our financial results would be negatively impacted. The litigation may have other negative effects on our relationship with Delta and our operations under the existing Delta Connection Agreements.

Disagreements regarding the interpretation of our code-share agreements with our major partners could have an adverse effect on our operating results and financial condition.

        SkyWest, SkyWest Airlines and ExpressJet are parties to code-share agreements with Delta and United. For the year ended December 31, 2012, approximately 97% of our ASMs were attributable to flights we flew under those agreements. We anticipate that, for the foreseeable future, substantially all of our revenues will be generated under existing or future code-share agreements.

        Contractual agreements, such as our code-share agreements, are subject to interpretation and disputes may arise under such agreements if the parties to an agreement apply different interpretations to that agreement. Those disputes may divert management time and resources from the core operation of the business, and may result in litigation, arbitration or other forms of dispute resolution.

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        In recent years we have experienced disagreements with our major partners regarding the interpretation of various provisions of our code-share agreements. Some of those disagreements have resulted in litigation (see the preceding risk factor entitled "SkyWest Airlines and ExpressJet are engaged in litigation with Delta, which may negatively impact our financial results and our relationship with Delta"), and we may be subject to additional disputes and litigation in the future. Those disagreements have also required a significant amount of management time and financial resources.

        To the extent that we continue to experience disagreements regarding the interpretation of our code-share or other agreements, we will likely expend valuable management time and financial resources in our efforts to resolve those disagreements. Those disagreements may result in litigation, arbitration or other proceedings. Furthermore, there can be no assurance that any or all of those proceedings, if commenced, would be resolved in our favor. An unfavorable result in any such proceeding could have adverse financial consequences or require us to modify our operations. Such disagreements and their consequences could have an adverse effect on our operating results and financial condition.

We have a significant amount of contractual obligations.

        As of December 31, 2012, we had a total of approximately $1.6 billion in total long-term debt obligations. Substantially all of this long-term debt was incurred in connection with the acquisition of aircraft, engines and related spare parts. We also have significant long-term lease obligations primarily relating to our aircraft fleet. These leases are classified as operating leases and therefore are not reflected as liabilities in our consolidated balance sheets. At December 31, 2012, we had 568 aircraft under lease, with remaining terms ranging from one to 13 years. Future minimum lease payments due under all long-term operating leases were approximately $2.2 billion at December 31, 2012. At a 4.7% discount factor, the present value of these lease obligations was equal to approximately $1.8 billion at December 31, 2012. Our high level of fixed obligations could impact our ability to obtain additional financing to support additional expansion plans or divert cash flows from operations and expansion plans to service the fixed obligations.

Our fleet replacement will require a significant increase in our leverage and the related cash outflows.

        We currently have 268 CRJ200s with an average life of 11.2 years, 242 ERJ145s with an average life of 11.0 years and 42 Brasilia turboprops with an average life of 15.4 years. We anticipate that over the next several years, we will continue to replace these aircraft with large regional jets or turboprops. Our fleet replacement strategy will require significant amounts of capital to acquire these large regional jets or turboprops.

        There can be no assurance that our operations will generate sufficient cash flow or liquidity to enable us to obtain the necessary aircraft acquisition financing to replace our current fleet, or to make required debt service payments related to our existing obligations. Even if we meet all required debt, lease, and purchase obligations, the size of these long-term obligations could negatively affect our financial condition, results of operations, and the price of our common stock in many ways, including:

        If we need additional capital and cannot obtain such capital on acceptable terms, or at all, we may be unable to realize our fleet replacement plans or take advantage of unanticipated opportunities

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We may be limited from expanding our flying within the Delta and United flight systems, and there are constraints on our ability to provide airline services to airlines other than Delta and United.

        Additional growth opportunities within the Delta and United flight systems are limited by various factors. Except as currently contemplated by our existing code-share agreements, we cannot assure that Delta and United will contract with us to fly any additional aircraft. We may not receive additional growth opportunities, or may agree to modifications to our code-share agreements that reduce certain benefits to us in order to obtain additional aircraft, or for other reasons. Given the troubled nature of the airline industry, we believe that some of our competitors may be more inclined to accept reduced margins and less favorable contract terms in order to secure new or additional code-share operations. Even if we are offered growth opportunities by our major partners, those opportunities may involve economic terms or financing commitments that are unacceptable to us. Any one or more of these factors may reduce or eliminate our ability to expand our flight operations with our existing code-share partners. We also cannot provide any assurance that we will be able to obtain the additional ground and maintenance facilities, including gates, and support equipment, to expand our operations. The failure to obtain these facilities and equipment would likely impede our efforts to implement our business strategy and could materially and adversely affect our operating results and our financial condition.

        Our business model depends on major airlines, including Delta and United, electing to contract with us instead of operating their own regional jets. Some major airlines own their own regional airlines or operate their own regional jets instead of entering into contracts with regional carriers. We have no guarantee that in the future our code-share partners will choose to enter into contracts with us instead of operating their own regional jets. Our partners are not prohibited from doing so under our code-share agreements. A decision by Delta or United to phase out code-share relationships and instead acquire and operate their own regional jets could have a material adverse effect on our financial condition, results of operations or the price of our common stock.

        Additionally, our code-share agreements limit our ability to provide airline services to other airlines in certain major airport hubs of each of Delta and United. Under the SkyWest Airlines Delta Connection Agreement, our growth is contractually restricted in Atlanta, Cincinnati, Orlando and Salt Lake City. Under the ExpressJet Delta Connection Agreement, our growth is restricted in Atlanta, Cincinnati, New York (John F. Kennedy International Airport), Orlando and Salt Lake City. Under the SkyWest Airlines United Express Agreement, growth is restricted in Chicago (O'Hare International Airport), Denver, San Francisco, Seattle/Tacoma and Washington D.C. (Dulles International Airport). Due to the fluctuations in our schedules, which are established primarily by our major partners, there may be times that the number of flights we fly to and from a particular airport may exceed the limitations set forth in one or more of our code-share agreements. The breach of those limitations could constitute a breach of the applicable code-share agreement, which could have a material adverse effect on our operations.

Economic and industry conditions constantly change, and negative economic conditions in the United States and other countries may create challenges for us that could materially and adversely affect our operations and financial condition.

        Our operations and financial condition are affected by many changing economic and other conditions beyond our control, including, among others:

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        The aggregate effect of any, or some combination, of the foregoing economic and industry conditions on our operations or financial condition is virtually impossible to forecast; however, the occurrence of any or all of such conditions in a significant manner could materially and adversely affect our operations and financial condition.

We have been adversely affected by increases in fuel prices, and we would be adversely affected by disruptions in the supply of fuel.

        Dependence on foreign imports of crude oil, limited refining capacity and the possibility of changes in government policy on jet fuel production, transportation and marketing make it impossible to predict the future availability of jet fuel. If there are additional outbreaks of hostilities or other conflicts in oil-producing areas or elsewhere, or a reduction in refining capacity (due to weather events, for example), or governmental limits on the production or sale of jet fuel, there could be a reduction in the supply of jet fuel and significant increases in the cost of jet fuel. Major reductions in the availability of jet fuel or significant increases in its cost, or a continuation of current high prices for a significant period of time, would have a material adverse impact on us.

        Pursuant to our contract flying arrangements, our major partners have agreed to bear the economic risk of fuel price fluctuations on our contracted flights. We bear the economic risk of fuel price fluctuations on our pro-rate operations. As of December 31, 2012, essentially all of our Brasilia turboprops flown for Delta were flown under pro-rate arrangements, while approximately 60% of our Brasilia turboprops flown in the United system were flown under pro-rate arrangements. As of December 31, 2012, we operated 17 CRJ200s under a pro-rate agreement with United. We also operate nine CRJ200 under a pro-rate agreement with Delta and one CRJ200 under a pro-rate arrangement with US Airways. Our operating and financial results with respect to these pro-rate arrangements can be affected by the price and availability of jet fuel and in the event we are unable to pass on increased fuel prices to our pro-rate customers by increasing fares our financial performance would be adversely impacted.

The Airline Safety and Pilot Training Improvement Act of 2009 could negatively affect our operations and our financial condition.

        Prompted by the crash of a Colgan aircraft in 2009, near Buffalo, New York, passengers and governmental authorities have raised questions about pilot qualifications, training and fatigue. The Airline Safety and Pilot Training Improvement Act of 2009 (the "Improvement Act") was enacted in August of 2010. The Improvement Act adds new certification requirements for entry-level commercial pilots, requires additional emergency training, improves availability of pilot records and mandates stricter rules to minimize pilot fatigue.

        The Improvement Act also:

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        The implementation of the Improvement Act (and associated regulations) may increase our compliance and FAA reporting obligations, have a negative effect on pilot scheduling, work hours or other aspects of our operations, and negatively impact our operations and financial condition.

Reduced utilization levels of our aircraft under our code-share agreements would adversely impact our financial results.

        The majority of our code-share agreements set forth minimum levels of flight operations which our major partners are required to schedule for our operations and we are required to provide. These minimum flight operating levels are intended to compensate us for reduced operating efficiencies caused by production decreases made by our major partners under our respective code-share agreements. Generally, our major partners have utilized our flight operations at levels which exceed the minimum levels set forth in our code-share agreements, however, in recent years our major partners have reduced our utilization to levels which, at times, have been lower than the levels required by our code-share agreements. If our major partners schedule the utilization of our aircraft below historical levels (including taking into account the stage length and frequency of our scheduled flights), we may not be able to maintain operating efficiencies previously obtained, which would negatively impact our operating results and financial condition. Additionally, our major partners may change routes and frequencies of flights, which can shorten flight trip lengths. Changes in schedules may increase our flight costs, which could exceed the reimbursed rates paid by our major partners. Continued reduced utilization levels of our aircraft or other changes to our schedules under our code-share agreements would adversely impact our financial results.

There are long-term risks related to supply and demand of regional aircraft associated with our regional airline services strategy.

        Our major airline partners have indicated that their committed supply of regional airline capacity is larger than they desire given current market conditions. Specifically, they have identified an oversupply of 50-seat regional jets under contractual commitments with regional airlines. Delta in particular has reduced both the number of 50-seat regional jets within its network and the number of regional airlines with which it contracts. There are currently more than 300 50-seat aircraft within the Delta Connection system. In addition to reducing the number of 50-seat jets under contract, major airlines have reduced the utilization of regional aircraft, thereby reducing the revenue paid to regional airlines under capacity purchase agreements (See the risk factor titled "Reduced utilization levels of our aircraft under our code-share agreements would adversely impact our financial results" for additional details). This decrease has had, and may continue to have, a negative impact on our regional airline services revenue and financial results.

Declining interest rates could have a negative effect on our financial results.

        Our earnings are affected by changes in interest rates due to the amount of our variable rate long-term debt and the amount of cash and securities we hold. Under our contractual arrangements with our major partners, we are directly reimbursed for interest expense on debt-financed aircraft as a

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pass-through cost. The reimbursement of the interest expense is recorded as passenger revenue in our consolidated statements of income. Thus, a decline in interest expense associated with contract aircraft would likely be offset by a reduced aircraft ownership cost passed through to our major partners. Interest expense decreased $3.0 million, or 3.7%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in interest expense was substantially due to a decrease in interest rates and the majority of this reduction was passed through to our major partners. Interest income decreased $0.3 million, or 3.7% during the year ended December 31, 2012, compared to the year ended December 31, 2011. Interest income is not a component of our contractual arrangement with our major partners. If interest rates were to decline, our major partners would receive the principal benefit of the interest expense decline, since interest expense is generally passed through to our major partners; however, if declining interest rates reduce our interest income, our financial results will be negatively affected.

Our insurance costs have increased and further increases in insurance costs or reductions in coverage could have an adverse impact on us.

        We carry insurance for public liability, passenger liability, property damage and all-risk coverage for damage to our aircraft. As a result of terrorist attacks occurring during recent years, aviation insurers significantly reduced the amount of insurance coverage available to commercial air carriers for liability to persons other than employees or passengers for claims resulting from acts of terrorism, war or similar events (war-risk coverage). At the same time, these insurers significantly increased the premiums for aviation insurance in general.

        The U.S. government has agreed to provide commercial war-risk insurance for U.S.-based airlines through December 31, 2013, covering losses to employees, passengers, third parties and aircraft. If the U.S. government ceases to provide such insurance beyond that date, or reduces the coverage provided by such insurance, we will attempt to purchase insurance coverage, likely with a narrower scope, from commercial insurers at an additional cost. To the extent this coverage is not available at commercially reasonable rates, we would be adversely affected.

        While the price of commercial insurance has generally declined since the period immediately after the 2001 terrorist attacks, in the event commercial insurance carriers further reduce the amount of insurance coverage available to us, or significantly increase the cost of obtaining such coverage, we would be adversely affected.

We could be adversely affected by an outbreak of a disease that affects travel behavior.

        In 2010, there was an outbreak of the H1N1 flu virus which had an adverse impact throughout our network. In 2003, there was an outbreak of Severe Acute Respiratory Syndrome ("SARS"), which had an adverse impact on travel behavior. In addition, in the past there have been concerns about outbreaks or potential outbreaks of other diseases, such as avian flu. Any outbreak of a disease (including a worsening of the outbreak of the H1N1 flu virus) that affects travel behavior could have a material adverse impact on our operating results and financial condition. In addition, outbreaks of disease could result in quarantines of our personnel or an inability to access facilities or our aircraft, which could adversely affect our operations and financial condition.

Interruptions or disruptions in service at one of our hub airports, due to adverse weather or for any other reason, could have a material adverse impact on our operations.

        We currently operate primarily through hubs in Atlanta, Los Angeles, Houston, Minneapolis, Detroit, San Francisco, Salt Lake City, Chicago, Denver, Houston, Washington, D.C., Newark, Cleveland and the Pacific Northwest. Nearly all of our flights either originate from or fly into one of these hubs. Our revenues depend primarily on our completion of flights and secondarily on service

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factors such as timeliness of departure and arrival. Any interruptions or disruptions could, therefore, severely and adversely affect us. Extreme weather can cause flight disruptions, and, during periods of storms or adverse weather, fog, low temperatures, etc., our flights may be canceled or significantly delayed. Hurricanes Katrina and Rita and Superstorm Sandy, in particular, caused severe disruption to air travel in the affected areas and adversely affected airlines operating in the region, including ExpressJet. We operate a significant number of flights to and from airports with particular weather difficulties, including Atlanta, Salt Lake City, Chicago, San Francisco, Newark and Denver. A significant interruption or disruption in service at one of our hubs, due to adverse weather or otherwise, could result in the cancellation or delay of a significant portion of our flights and, as a result, could have a severe adverse impact on our, operations and financial performance.

We are increasingly dependent on technology, and if our technology fails or we are unable to continue to invest in new technology, our business may be adversely affected.

        We have become increasingly dependent on technology initiatives to reduce costs and to enhance customer service in order to compete in the current business environment. The performance and reliability of our technology are critical to our ability to compete effectively. Technology initiatives will continue to require significant capital investments in order to deliver these expected benefits. If we are unable to make these investments, our business and operations could be negatively affected. In addition, we may face challenges associated with integrating complex technology systems formerly operated by Atlantic Southeast and ExpressJet Delaware. If we are unable to manage these challenges effectively, our business and operations could be negatively affected.

        In addition, any internal technological error or failure or large scale external interruption in the technology infrastructure we depend on, such as power, telecommunications or the internet, may disrupt our internal network. Any individual, sustained or repeated failure of technology could impact our customer service and result in increased costs. Like most companies, our technology systems and related data may be vulnerable to a variety of sources of interruption due to events beyond our control, including natural disasters, terrorist attacks, telecommunications failures, computer viruses, hackers and other security issues. While we have in place, and continue to invest in, technology security initiatives and disaster recovery plans, these measures may not be adequate or implemented properly to prevent a business disruption and mitigate the resulting adverse financial consequences.

Our investment in foreign airlines may negatively impact our profitability.

        On September 4, 2008, we announced our intention to acquire a 20% interest in a Brazilian regional airline, Trip Linhas Aereas ("Trip"), for $30 million. On July 12, 2012, we sold our interest in Trip to Trip Investimentos, Ltda. ("Trip Investimentos") for a price of $42 million. The purchase price is scheduled to be paid in three installments over a two-year period and may be accelerated upon the occurrence of certain conditions identified in the purchase agreement. As part of the sale transaction, we also received an option to acquire 15.38% of the ownership in Trip Investimentos. The option has an initial exercise price per share equal to the price paid by Trip Investimentos to acquire our Trip shares. The exercise price escalates annually at a specified rate and we can exercise the option, at our discretion, between the second and fourth anniversaries of our receipt of the final required installment payments from Trip Investimentos. Under the terms of the purchase agreement, Trip Investimentos cannot transfer the Trip shares until all three installment payments have been made. For financial reporting purposes, the restriction on Trip Investimentos' ability to transfer the Trip shares prevents the transaction from being recognized as a sale. As of December 31, 2012, we had received the first installment payment of $8.4 million. The initial payment was recorded as an "Other Long-Term Liability" on our consolidated balance sheet. The second installment payment is due July 12, 2013, for an amount of $16.8 million. The third installment payment is due July 12, 2014, for an amount of

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$16.8 million. There can be no assurance that we will receive the remaining installments payable to us by Trip Investimentos.

        On September 29, 2010, we invested $7 million to acquire a 30% ownership interest in Mekong Aviation Joint Stock Company, an airline operating in Vietnam ("Air Mekong"). During 2011, we invested an additional $3 million in Air Mekong. We had an investment balance of $1.7 million in Air Mekong as of December 31, 2012. Our investment in Air Mekong is recorded as an "Other Asset" on our consolidated balance sheet. There is no assurance that Air Mekong will ultimately succeed in its business plan. In addition, we sublease four CRJ900s to Air Mekong. In the event Air Mekong incurs operating losses or files for bankruptcy, our investment may have little or no value and our financial results and condition would be negatively impacted. In addition, we may not be able to sublease or operate the four CRJ900s.

Our business could be harmed if we lose the services of our key personnel.

        Our business depends upon the efforts of our chief executive officer, Jerry C. Atkin, and our other key management and operating personnel. We may have difficulty replacing management or other key personnel who cease to be employed by us and, therefore, the loss of the services of any of these individuals could harm our business. We do not maintain key-man insurance on any of our executive officers.

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Risks Related to the Airline Industry

We may be materially affected by uncertainties in the airline industry.

        The airline industry has experienced tremendous challenges in recent years and will likely remain volatile for the foreseeable future. Among other factors, the financial challenges faced by major and regional carriers, including American, United, US Airways, Pinnacle and Mesa, the slowing U.S. economy and continuing hostilities in the Middle East and other regions have significantly affected, and are likely to continue to affect, the U.S. airline industry. These events have resulted in declines and shifts in passenger demand, increased insurance costs, increased government regulations and tightened credit markets, all of which have affected, and will continue to affect, the operations and financial condition of participants in the industry, including us, major carriers (including our major partners), competitors and aircraft manufacturers. These industry developments raise substantial risks and uncertainties, which will affect us, major carriers (including our major partners), competitors and aircraft manufacturers in ways that we are unable to currently predict.

The airline industry is highly competitive and has undergone a period of consolidation and transition leaving fewer potential code-share partners.

        The airline industry is highly competitive. We not only compete with other regional airlines, some of which are owned by or operated as code-share partners of major airlines, but we also face competition from low-cost carriers and major airlines on many of our routes. Low-cost carriers such as Southwest, JetBlue, US Airways and Frontier among others, operate at many of our hubs, resulting in significant price competition. Additionally, a large number of other carriers operate at our hubs, creating intense competition. Certain of our competitors are larger and have significantly greater financial and other resources than we do. Moreover, federal deregulation of the industry allows competitors to rapidly enter our markets and to quickly discount and restructure fares. The airline industry is particularly susceptible to price discounting because airlines incur only nominal costs to provide service to passengers occupying otherwise unsold seats. Increased fare competition could adversely affect our operations and the price of our common stock. The airline industry has undergone substantial consolidation, and it may in the future undergo additional consolidation. Recent examples include the merger between United and Continental in October 2010, Delta and Northwest Airlines, Inc. in November 2008 and America West Airlines and US Airways in September 2005, as well as the merger of Southwest and AirTran Airways, Inc. ("AirTran") during 2011. We understand that several airlines are currently in discussions related to consolidation in the industry. Other developments include domestic and international code-share alliances between major carriers. Any additional consolidation or significant alliance activity within the airline industry could limit the number of potential partners with whom we could enter into code-share relationships and could have a material adverse effect on our relationships with our code-share partners.

        Due, in part, to the dynamic nature of the airline industry, major airlines may also make other strategic changes such as changing or consolidating hub locations. If our major partners were to make changes such as these in their strategy and operations, our operations and financial results could be adversely impacted.

Terrorist activities or warnings have dramatically impacted the airline industry, and will likely continue to do so.

        The terrorist attacks of September 11, 2001 and their aftermath have negatively impacted the airline industry in general, including our operations. The primary effects experienced by the airline industry include a substantial loss of passenger traffic and revenue. Although, to some degree, airline passenger traffic and revenue have recovered since the September 11th attacks, additional terrorist attacks could have a similar or even more pronounced effect. Even if additional terrorist attacks are

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not launched against the airline industry, there will be lasting consequences of the attacks, including increased security and insurance costs, increased concerns about future terrorist attacks, increased government regulation and airport delays due to heightened security. Additional terrorist attacks and the fear of such attacks could negatively impact the airline industry, and result in further decreased passenger traffic and yields, increased flight delays or cancellations associated with new government mandates, as well as increased security, fuel and other costs. We cannot provide any assurance that these events will not harm the airline industry generally or our operations or financial condition in particular.

Fuel costs have adversely affected, and will likely continue to adversely affect, the operations and financial performance of the airline industry.

        The price of aircraft fuel is unpredictable and volatile. Higher fuel prices may lead to higher airfares, which would tend to decrease the passenger load of our code-share partners. Over extended periods, such decreases will likely have an adverse effect on the number of flights we could be scheduled to operate and adversely affect our revenues. Additionally, fuel shortages have been threatened. In addition, we bear the economic risk of fuel price fluctuations on our pro-rate operations. As of December 31, 2012, essentially all of our Brasilia turboprops flown for Delta were flown under pro-rate arrangements, while approximately 60% of our Brasilia turboprops flown in the United system were flown under pro-rate arrangements. As of December 31, 2012, we operated 17 CRJ200s under a pro-rate agreement with United, nine CRJ200 under a pro-rate agreement with Delta and one CRJ200 under a pro-rate arrangement with US Airways. The future cost and availability of fuel to us cannot be predicted, and substantial fuel cost increases or the unavailability of adequate supplies of fuel may have a material adverse effect on our results of operations. During periods of increasing fuel costs, our operating margins have been, and will likely continue to be, adversely affected.

We are subject to significant governmental regulation.

        All interstate air carriers, including SkyWest Airlines and ExpressJet, are subject to regulation by the DOT, the FAA and other governmental agencies. Regulations promulgated by the DOT primarily relate to economic aspects of air service. The FAA requires operating, air worthiness and other certificates; approval of personnel who may engage in flight, maintenance or operation activities; record keeping procedures in accordance with FAA requirements; and FAA approval of flight training and retraining programs. We cannot predict whether we will be able to comply with all present and future laws, rules, regulations and certification requirements or that the cost of continued compliance will not have a material adverse effect on our operations. We incur substantial costs in maintaining our current certifications and otherwise complying with the laws, rules and regulations to which we are subject. A decision by the FAA to ground, or require time-consuming inspections of or maintenance on, all or any of our aircraft for any reason may have a material adverse effect on our operations. In addition to state and federal regulation, airports and municipalities enact rules and regulations that affect our operations. From time to time, various airports throughout the country have considered limiting the use of smaller aircraft, such as our aircraft, at such airports. The imposition of any limits on the use of our aircraft at any airport at which we operate could have a material adverse effect on our operations.

The occurrence of an aviation accident would negatively impact our operations and financial condition.

        An accident or incident involving one of our aircraft could result in significant potential claims of injured passengers and others, as well as repair or replacement of a damaged aircraft and its consequential temporary or permanent loss from service. In the event of an accident, our liability insurance may not be adequate to offset our exposure to potential claims and we may be forced to bear substantial losses from the accident. Substantial claims resulting from an accident in excess of our related insurance coverage would harm our operational and financial results. Moreover, any aircraft

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accident or incident, even if fully insured, could cause a public perception that our operations are less safe or reliable than other airlines.


Risks Related to Our Common Stock

We can issue additional shares without shareholder approval.

        Our Restated Articles of Incorporation, as amended (the "Restated Articles"), authorize the issuance of up to 120,000,000 shares of common stock, all of which may be issued without any action or approval by our shareholders. As of December 31, 2012, we had 51,432,790 shares outstanding. In addition, as of December 31, 2012, we had equity-based incentive plans under which 2,973,459 shares are reserved for issuance and an employee stock purchase plan under which 1,855,580 shares are reserved for issuance, both of which may dilute the ownership interest of our shareholders. Our Restated Articles also authorize the issuance of up to 5,000,000 shares of preferred stock. Our board of directors has the authority to issue preferred stock with the rights and preferences, and at the price, which it determines. Any shares of preferred stock issued would likely be senior to shares of our common stock in various regards, including dividends, payments upon liquidation and voting. The value of our common stock could be negatively affected by the issuance of any shares of preferred stock.

The amount of dividends we pay may decrease or we may not pay dividends.

        Historically, we have paid dividends in varying amounts on our common stock. The future payment and amount of cash dividends will depend upon our financial condition and results of operations, loan covenants and other factors deemed relevant by our board of directors. There can be no assurance that we will continue our practice of paying dividends on our common stock or that we will have the financial resources to pay such dividends.

Provisions of our charter documents and code-share agreements may limit the ability or desire of others to gain control of our company.

        Our ability to issue shares of preferred and common stock without shareholder approval may have the effect of delaying or preventing a change in control and may adversely affect the voting and other rights of the holders of our common stock, even in circumstances where such a change in control would be viewed as desirable by most investors. The provisions of the Utah Control Shares Acquisitions Act may also discourage the acquisition of a significant interest in or control of our company. Additionally, our code-share agreements contain termination and extension trigger provisions related to change in control type transactions that may have the effect of deterring a change in control of our company.

ITEM 1B.    UNRESOLVED STAFF COMMENTS

        None

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ITEM 2.    PROPERTIES

Flight Equipment

        As of December 31, 2012, our fleet consisted of the following types of owned and leased aircraft:

Aircraft Type
  Number of
Owned Aircraft 		  Number of
Leased Aircraft 		  Passenger
Capacity 		  Scheduled Flight
Range (miles) 		  Average Cruising
Speed (mph) 		  Average Age
(years) 		 

CRJ200s

     87     181     50     1,500     530     11.2  

CRJ700s

     69     66     70     1,600     530     7.6  

CRJ900s

     11     39     90     1,500     530     5.0  

ERJ145s

     0     242     50     1,500     530     11.0  

ERJ135s

     0     7     37     1,500     530     11.4  

Brasilia Turboprops

     9     33     30     300     300     15.4  

        The following table outlines the expected size and composition of our combined fleet for the periods indicated. The projected fleet size schedule below assumes aircraft financed under operating leases will be returned to the lessor at the end of each lease and debt-financed aircraft will be retired or sold as the debt matures.

 
   As of December 31,  
 
   2013   2014   2015   2016  

Expected fleet size

                          

Total Bombardier Regional Jets

     441     416     401     372  

Total Embraer Regional Jets

     223     197     157     157  

Total Brasilia Turboprops

     23     13     12     12  

Total Combined Fleet

     687     626     570     541  

        The Bombardier and Embraer Regional Jets are among the quietest commercial jets currently available and offer many of the amenities of larger commercial jet aircraft, including flight attendant service, as well as a stand-up cabin, overhead and under seat storage, lavatories and in-flight snack and beverage service. The speed of Bombardier and Embraer Regional Jets is comparable to larger aircraft operated by the major airlines, and they have a range of approximately 1,600 miles; however, because of their smaller size and efficient design, the per-flight cost of operating a Bombardier or Embraer Regional Jet is generally less than that of a 120-seat or larger jet aircraft.

        The Brasilia turboprops are 30-seat, pressurized aircraft designed to operate more economically over short-haul routes than larger jet aircraft. These factors make it economically feasible for SkyWest Airlines to provide high frequency service in markets with relatively low volumes of passenger traffic. Passenger comfort features of the Brasilia turboprops include stand-up headroom, a lavatory, overhead baggage compartments and flight attendant service. We expect that Delta and United will want us to continue to operate Brasilia turboprops in markets where passenger load and other factors make the operation of a regional jet impractical. As of December 31, 2012, SkyWest Airlines operated 42 Brasilia turboprops out of Los Angeles, San Francisco, Salt Lake City, Seattle/Tacoma and Portland. SkyWest Airlines' Brasilia turboprops are generally used in its California markets, which are characterized by high frequency service on shorter stage lengths.

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Ground Facilities

        SkyWest, SkyWest Airlines and ExpressJet own or lease the following principal properties:

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Our management deems the current facilities of SkyWest, SkyWest Airlines and ExpressJet as being suitable to support existing operations and believes these facilities will be adequate for the foreseeable future.

ITEM 3.    LEGAL PROCEEDINGS

        We are subject to certain legal actions which we consider routine to our business activities. As of December 31, 2012, our management believed, after consultation with legal counsel, that the ultimate outcome of such legal matters is not likely to have a material adverse effect on our financial position, liquidity or results of operations. However, the following is a significant outstanding legal matter, which if not resolved consistent with the position we have taken in such matters, would negatively impact our financial results.

SkyWest Airlines and ExpressJet v. Delta

        During the quarter ended December 31, 2007, Delta notified SkyWest, SkyWest Airlines and Atlantic Southeast (now ExpressJet) of a dispute under the Delta Connection Agreements executed by Delta with SkyWest Airlines and Atlantic Southeast . The dispute relates to the allocation of liability for certain irregular operation ("IROP") expenses paid by SkyWest Airlines and Atlantic Southeast (now ExpressJet) to their passengers and vendors under certain situations. During the period between the execution of the Delta Connection Agreements in September 2005 and December 2007, SkyWest Airlines and Atlantic Southeast passed through to Delta IROP expenses that were paid pursuant to Delta's policies, and Delta accepted and reimbursed those expenses. Delta now claims it is obligated to reimburse only a fraction of the IROP expenses. As a result, Delta withheld a combined total of approximately $25 million (pre-tax) from one of the weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast during December 2007. Since December 2007, Delta has continued to withhold payments from the weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast (now ExpressJet), and has disputed subsequent billings for IROP expenses. On February 1, 2008, SkyWest Airlines and Atlantic Southeast filed a Complaint in the Superior Court for Fulton County, Georgia ("Superior Court") challenging Delta's treatment of the matter and seeking recovery of the payments withheld by Delta and any future withholdings related to this issue. Delta filed an Answer to the SkyWest Airlines and Atlantic Southeast Complaint and a Counterclaim against SkyWest Airlines and Atlantic Southeast on March 24, 2008. Delta's Counterclaim alleged that SkyWest Airlines and Atlantic Southeast breached the Delta Connection Agreements by invoicing Delta for IROP expenses that were paid pursuant to Delta's policies, and claims only a portion of those expenses may be invoiced to Delta. Since July 1, 2008, we have not recognized revenue related to IROP expense reimbursements withheld by Delta because collection of those reimbursements is the subject of litigation and is not reasonably assured. As of December 31, 2012, we had recognized a cumulative total of $31.7 million of revenue associated with the funds withheld by Delta.

        During 2010, we began preliminary settlement discussions with Delta related to the dispute. Notwithstanding the legal merits of the case, we offered to settle the claim for approximately $5.9 million less than the cumulative total of revenue recognized related to this matter. Those settlement discussions were not successful; however, as a result of the settlement offer, we wrote off $5.9 million of related receivables as of December 31, 2010.

        After proceedings that included contested motions, document discovery, and depositions, Delta voluntarily dismissed its Counterclaim. Discovery in that action was not complete at the time of dismissal. On February 14, 2011, SkyWest Airlines and Atlantic Southeast voluntarily dismissed their claims in the Superior Court, and filed a new complaint (the "State Court Complaint") in the Georgia State Court of Fulton County (the "State Court"). The claims continue to include breach of contract, breach of contract based on mutual departure, breach of contract based on voluntary payment, and breach of the duty of good faith and fair dealing. Delta moved for partial dismissal of the State Court

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Complaint, which motion was denied in its entirety. Discovery in the State Court lawsuit is not yet complete.

        On October 18, 2011, Delta filed a counterclaim (the "Counterclaim") against SkyWest Airlines and Atlantic Southeast. The Counterclaim contains claims for unjust enrichment and breach of contract related to alleged non-revenue positive space flying by SkyWest and Atlantic Southeast employees for non-Delta related business. Delta's Counterclaim does not specify an amount of damages, but the Counterclaim alleges, on information and belief, that Delta's damages exceed $4.5 million. SkyWest Airlines and Atlantic Southeast filed their reply to the Counterclaim on November 21, 2011, stating the allegations contained in the Counterclaim stand denied by operation of law and asserting SkyWest's and Atlantic Southeast's affirmative defenses. An estimated loss is accrued if the loss is probable and reasonably estimable. Because these conditions have not been satisfied, we have not recorded a loss in our consolidated financial statements with respect to the dispute. As of December 31, 2012, a range of reasonably possible loss is not determinable related to the Counterclaim.

        As of December 31, 2012, our estimated range of reasonably possible loss related to the dispute was $0 to $25.8 million. SkyWest Airlines and ExpressJet continue to vigorously pursue their claims set forth in the State Court Complaint and their defenses against Delta's Counterclaim.

ITEM 4.    MINE SAFETY DISCLOSURES

        The disclosure required by this item is not applicable.

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PART II

ITEM 5.    MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Price for Our Common Stock

        Our common stock is traded on The Nasdaq Global Select Market under the symbol "SKYW." At February 8, 2013, there were approximately 910 stockholders of record of our common stock. Securities held of record do not include shares held in securities position listings. The following table sets forth the range of high and low closing sales prices for our common stock, during the periods indicated.

 
   2012   2011  
Quarter
  High   Low   High   Low  

First

     14.05     10.81     17.08     15.05  

Second

     11.04     6.36     16.76     14.39  

Third

     10.87     6.31     15.49     10.95  

Fourth

     12.94     10.36     13.67     10.51  

        The transfer agent for our common stock is Zions First National Bank, Salt Lake City, Utah.

Dividends

        During 2012 and 2011, our Board of Directors declared regular quarterly dividends of $0.04 per share.

Securities Authorized for Issuance Under Equity Compensation Plans

        The following table contains information regarding our equity compensation plans as of December 31, 2012.

Plan Category
  Number of Securities to be
Issued upon Exercise of
Outstanding Options,
Warrants and Rights 		  Weighted-Average
Exercise Price of
Outstanding
Options,
Warrants and
Rights 		  Number of Securities
Remaining Available for
Future Issuance under
Equity Compensation
Plans (Excluding
Securities Reflected in
the First Column) 		 

Equity compensation plans approved by security holders(1)

     3,653,859   $ 18.44     4,829,039  
(1)
Consists of our Executive Stock Incentive Plan, our All Share Stock Option Plan, our SkyWest Inc. Long Term Incentive Plan, and our Employee Stock Purchase Plan. See Note 9 to our Consolidated Financial Statements for the fiscal year ended December 31, 2012, included in Item 8 of this Report, for additional information regarding these plans.

Issuer Purchases of Equity Securities

        Our Board of Directors has adopted a stock repurchase program which authorizes us to repurchase shares of our common stock in the public market, from time to time, at prevailing prices. Our stock repurchase program currently authorizes the repurchase of up to 25,000,000 shares of our

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common stock. The following table summarizes our purchases under our stock repurchase program for the three months ended December 31, 2012.

Period
  Total
Number
of Shares
Purchased 		  Average
Price
Paid Per
Share 		  Total Number
of Shares
Purchased
as Part of a
Publicly
Announced
Program(1) 		  Maximum Number
of Shares that
May Yet Be
Purchased Under
the Program 		 

October 1 - October 31, 2012

     34     10.61     34     6,513,692  

November 1 - November 30, 2012

     —     —     —     6,513,692  

December 1 - December 31, 2012

     —     —     —     6,513,692  
                   

Total

     34     10.61     34     6,513,692  
                   
(1)
Under resolutions adopted at various dates between February 2007 and August 2012, our Board of Directors authorized the repurchase of up to 25,000,000 shares of our common stock. Purchases are made at management's discretion based on market conditions and our financial resources. As of December 31, 2012, we had spent approximately $338.5 million to repurchase approximately 18,486,308 shares of the 25,000,000 shares of common stock designated for repurchase by our Board of Directors. The authorization of our Board of Directors does not have an expiration date. Effective September 14, 2012, our Board of Directors adopted the SkyWest, Inc. 2012 Stock Repurchase Plan (the "Stock Repurchase Plan"), which provides for the repurchase of up to 6,514,266 shares of common stock, from time to time in open market or privately negotiated transactions, as contemplated by Rule 10b5-1 promulgated under the Securities Exchange Act of 1934, as amended. The Stock Repurchase Plan is scheduled to expire on October 15, 2014.

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Stock Performance Graph

        The following Performance Graph and related information shall not be deemed "soliciting material" or "filed" with the Securities and Exchange Commission,(the "Commission"), nor shall such information be incorporated by reference into any future filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent we specifically incorporate it by reference into such filing.

        The following graph compares the cumulative total shareholder return on our common stock over the five-year period ended December 31, 2012, with the cumulative total return during such period of the Nasdaq Stock Market (U.S. Companies) and a peer group index composed of regional and major passenger airlines with U.S operations that have equity securities traded on the Nasdaq Stock Market or the New York Stock Exchange, the members of which are identified below (the "Peer Group") for the same period. The following graph assumes an initial investment of $100.00 with dividends reinvested. The stock performance shown on the graph below represents historical stock performance and is not necessarily indicative of future stock price performance.


Comparison of Cumulative Five Year Total Return

GRAPHIC

 
   INDEXED RETURNS  
 
    
   Years Ending  
 
   Base
Period
Dec07 		 
Company Name / Index
  Dec08   Dec09   Dec10   Dec11   Dec12  

SkyWest, Inc. 

     100     69.82     64.27     60.02     48.94     49.10  

NASDAQ Composite

     100     59.03     82.25     97.32     98.63     110.78  

Peer Group

     100     70.59     72.78     88.12     61.79     81.13  

        The Peer Group consists of regional and major passenger airlines with U.S operations that have equity securities traded on the Nasdaq Stock Market or the New York Stock Exchange. The members of the Peer Group are: Alaska Air Group, Inc.: Allegiant Travel Co.; AMR Corp/DE; Delta Air Lines, Inc.; Great Lakes Aviation, LTD.; Gulfstream Intl. Group Inc.; Hawaiian Holdings, Inc.; JetBlue Airways, Corp.; Pinnacle Airlines, Corp.; Republic Airways, Holdings Inc.; SkyWest, Inc. Southwest Airlines, Spirit Airlines Inc.; United Continental Holdings, Inc.; and US Airways Group, Inc.

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ITEM 6.    SELECTED FINANCIAL DATA

        The following selected financial and operating data should be read in conjunction with "Management's Discussion and Analysis of Financial Condition and Results of Operations," and our consolidated financial statements and related notes included elsewhere in this Report.

Selected Consolidated Financial Data (amounts in thousands, except per share data):

 
   Year Ended December 31,  
 
   2012   2011   2010(2)   2009   2008  

Operating revenues

   $ 3,534,372   $ 3,654,923   $ 2,765,145   $ 2,613,614   $ 3,496,249  

Operating income

     165,987     41,105     201,826     212,195     255,231  

Net income (loss)

     51,157     (27,335 )   96,350     83,658     112,929  

Net income (loss) per common share:

                                

Basic

   $ 1.00   $ (0.52 ) $ 1.73   $ 1.50   $ 1.95  

Diluted

   $ 0.99   $ (0.52 ) $ 1.70     1.47     1.93  

Weighted average shares:

                                

Basic

     51,090     52,201     55,610     55,854     57,790  

Diluted

     51,746     52,201     56,526     56,814     58,633  

Total assets

     4,254,637   $ 4,281,908   $ 4,456,148   $ 4,310,802   $ 4,014,291  

Current assets

     1,434,040     1,280,464     1,379,203     1,254,099     1,220,668  

Current liabilities

     591,425     624,148     572,278     449,835     386,604  

Long-term debt, net of current maturities

     1,470,567     1,606,993     1,738,936     1,816,318     1,681,705  

Stockholders' equity

     1,387,175     1,334,261     1,420,923     1,352,219     1,275,521  

Return (loss) on average equity(1)

     3.8 %   (2.0 )%   6.9 %   6.4 %   9.0 %

Cash dividends declared per common share

   $ 0.16   $ 0.16   $ 0.16   $ 0.16   $ 0.13  
(1)
Calculated by dividing net income (loss) by the average of beginning and ending stockholders' equity for the year.

(2)
On November 12, 2010, we completed the ExpressJet Merger for $136.5 million in cash. Our 2010 consolidated operating revenues contain 50 days of additional revenue and expenses generated subsequent to the ExpressJet Merger.

Selected Operating Data

 
   Year Ended December 31,  
 
   2012   2011   2010   2009   2008  

Block hours

     2,297,014     2,250,280     1,547,562     1,363,257     1,376,815  

Departures

     1,435,512     1,390,523     1,001,766     870,761     872,288  

Passengers carried

     58,803,690     55,836,271     40,411,089     34,544,772     33,461,819  

Revenue passenger miles (000)

     30,088,278     29,109,039     20,227,220     17,448,958     17,101,910  

Available seat miles (000)

     37,278,554     36,698,859     25,503,845     22,142,650     22,020,250  

Revenue per available seat mile

     9.5¢     10.0¢     10.8¢     11.8¢     15.9¢  

Cost per available seat mile

     9.2¢     10.1¢     10.4¢     11.2¢     15.2¢  

Average passenger trip length

     512     521     501     505     511  

Number of operating aircraft at end of year

     738     732     704     449     442  

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        The following terms used in this section and elsewhere in this Report have the meanings indicated below:

        "Revenue passenger miles" represents the number of miles flown by revenue passengers.

        "Available seat miles" represents the number of seats available for passengers multiplied by the number of miles those seats are flown.

        "Revenue per available seat mile" represents passenger revenue divided by available seat miles.

        "Cost per available seat mile" represents operating expenses plus interest divided by available seat miles.

        "Number of operating aircraft at end of year" excludes aircraft leased to un-affiliated and affiliated entities.

ITEM 7.    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

        The following discussion and analysis presents factors that had a material effect on our results of operations during the years ended December 31, 2012, 2011 and 2010. Also discussed is our financial position as of December 31, 2012 and 2011. You should read this discussion in conjunction with our consolidated financial statements, including the notes thereto, appearing elsewhere in this Report or incorporated herein by reference. This discussion and analysis contains forward-looking statements. Please refer to the sections of this Report entitled "Cautionary Statement Concerning Forward-looking Statements" and "Item 1A. Risk Factors" for discussion of some of the uncertainties, risks and assumptions associated with these statements.

Overview

        Through SkyWest Airlines and ExpressJet, we operate the largest regional airline in the United States. As of December 31, 2012, SkyWest Airlines and ExpressJet offered scheduled passenger and air freight service with approximately 4,000 total daily departures to destinations in the United States, Canada, Mexico and the Caribbean. As of December 31, 2012, we operated a combined fleet of 744 aircraft consisting of the following:

 
   CRJ200   ERJ145   ERJ135   CRJ700   CRJ900   EMB120   Total  

United

     92     242     7     70     —     34     445  

Delta

     147     —     —     60     46     8     261  

US Airways

     15     —     —     —     —     —     15  

American

     12     —     —     —     —     —     12  

Alaska

     —     —     —     5     —     —     5  

Subleased to an un-affiliated entity

     2     —     —     —     —     —     2  

Subleased to an affiliated entity

     —     —     —     —     4     —     4  
                               

Total

     268     242     7     135     50     42     744  

        For the year ended December 31, 2012, approximately 64.8% of our aggregate capacity was operated for United, approximately 32.2% was operated for Delta, approximately 1.4% was operated for Alaska, approximately 1.4% was operated for US Airways and approximately 0.2% was operated for American.

        Under a fixed-fee flying arrangement, the major airline generally pays the regional airline a fixed-fee for each departure, with additional incentives based on completion of flights, on-time performance and baggage handling performance. In addition, the major and regional airline often enter into an arrangement pursuant to which the major airline bears the risk of changes in the price of fuel

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and other such costs that are passed through to the major airline partner. Regional airlines benefit from a fixed-fee arrangement because they are sheltered from most of the elements that cause volatility in airline financial performance, including variations in ticket prices, passenger loads and fuel prices. However, regional airlines in fixed-fee arrangements do not benefit from positive trends in ticket prices, passenger loads or fuel prices and, because the major airline absorbs most of the costs associated with the regional airline flight, the margin between the fixed-fees for a flight and the expected per-flight costs tends to be smaller than the margins associated with revenue-sharing arrangements.

        Under our fixed-fee arrangements, two compensation components have a significant impact on comparability of revenue and operating expense for the periods presented. One item is the reimbursement of fuel expense, which is a directly-reimbursed expense under all of our fixed-fee arrangements. Our major partners directly reimburse us for fuel expense incurred under each respective fixed fee contract and we record such reimbursement as passenger revenue. Thus, the price volatility of fuel and the volume of fuel expensed under our fixed-fee arrangements will impact our fuel expense and our passenger revenue equally, with no impact on our operating income.

        The second item is the compensation we receive for engine maintenance under our fixed-fee arrangements. Under our United, American, US Airways and Alaska flying contracts, a portion of our compensation is based upon fixed hourly rates, which is intended to compensate us for engine maintenance costs ("Fixed-Rate Engine Contracts"). Under the compensation structure for our Delta Connection and United CPA flying contracts, our major partner directly reimburses us for engine maintenance expense when the expense is incurred ("Directly-Reimbursed Engine Contracts"). We use the direct-expense method of accounting for our CRJ200 regional jet aircraft engine overhaul costs and, accordingly, we recognize engine maintenance expense on our CRJ200 engines on an as-incurred basis. Under the direct-expense method, the maintenance liability is recorded when the maintenance services are performed ("CRJ200 Engine Overhaul Expense").

        Because we use the direct-expense method of accounting for our CRJ200 engine expense, and because we recognize revenue using the applicable fixed hourly rates under our Fixed-Rate Engine Contracts, the number of engine maintenance events and related expense we incur each reporting period under the Fixed-Rate Engine Contracts has a direct impact on the comparability of our operating income for the presented reporting periods. The CRJ200 Engine Overhaul Expense incurred under the Fixed-Rate Engine Contracts decreased $22.4 million during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in CRJ200 Engine Overhaul Expense was primarily due to a reduction in the number of scheduled engine maintenance events during the year ended December 31, 2012.

        Because we recognize revenue when we incur engine maintenance expense on engines operating under our Directly-Reimbursed Engine Contracts, the number of engine events and related expense we incur each reporting period does not have a direct impact on the comparability of our operating income for the presented reporting periods.

        We have an agreement with a third-party vendor to provide long-term engine maintenance covering scheduled and unscheduled repairs for engines on our CRJ700s operating under our Fixed-Rate Engine Contracts ("Power by the Hour Agreement"). Under the terms of the Power by the Hour Agreement, we are obligated to pay a set dollar amount per engine hour flown on a monthly basis and the vendor assumes the obligation to repair the engines at no additional cost to us, subject to certain specified exclusions. Thus, under the Power by the Hour Agreement, we expense the engine maintenance costs as flight hours are incurred on the engines and using the contractual rate set forth in the agreement. Because we record engine maintenance expense based on the fixed hourly rate pursuant to the Power by the Hour Agreement on our CRJ700s operating under our Fixed-Rate Engine Contracts, and because we recognize revenue using the applicable fixed hourly rates under our Fixed-Rate Engine Contracts, the number of engine events and related expense we incur each reporting

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period does not have a direct impact on the comparability of our operating income for the presented reporting periods. The table below summarizes how we are compensated by our major partners under our flying contracts for engine expense and the method we use to recognize the corresponding expense.

Flying Contract
  Compensation of Engine Expense   Expense Recognition

SkyWest Delta Connection

   Directly-Reimbursed Engine Contracts   Direct Expense Method

ExpressJet Delta Connection

   Directly-Reimbursed Engine Contracts   Direct Expense Method

SkyWest United Express (CRJ200)

   Fixed-Rate Engine Contracts   Direct Expense Method

SkyWest United Express (CRJ700)

   Fixed-Rate Engine Contracts   Power by the Hour Agreement

SkyWest United Express (EMB120)

   Fixed-Rate Engine Contracts   Deferral Method

ExpressJet United Express (CRJ200)

   Fixed-Rate Engine Contracts   Direct Expense Method

ExpressJet United Express (ERJ145)

   Fixed-Rate Engine Contracts   Power by the Hour Agreement

ExpressJet United CPA

   Directly-Reimbursed Engine Contracts   Power by the Hour Agreement

Alaska Agreement

   Fixed-Rate Engine Contracts   Power by the Hour Agreement

American Eagle Agreement (CRJ200)

   Fixed-Rate Engine Contracts   Direct Expense Method

US Airways Express (CRJ200)

   Fixed-Rate Engine Contracts   Direct Expense Method

        Historically, multiple contractual relationships have enabled us to reduce reliance on any single major airline code and to enhance and stabilize operating results through a mix of contract flying and our controlled or "pro-rate" flying. For the year ended December 31, 2012, contract flying revenue and pro-rate revenue represented approximately 91% and 9%, respectively, of our total passenger revenues. On contract routes, the major airline partner controls scheduling, ticketing, pricing and seat inventories and we are compensated by the major airline partner at contracted rates based on completed block hours, flight departures and other operating measures.


Financial Highlights

        We had revenues of $3.5 billion for the year ended December 31, 2012, a 3.3% decrease, compared to revenues of $3.7 billion for the year ended December 31, 2011. We had a net income of $51.2 million, or $0.99 per diluted share, for the year ended December 31, 2012, compared to a net loss of $27.3 million or $0.52 per diluted share, for the year ended December 31, 2011.

        The significant items affecting our financial performance during the year ended December 31, 2012 are outlined below:

        Under certain of our flying contracts, certain expenses are subject to direct reimbursement from our major partners and we record such reimbursements as passenger revenue, including fuel and certain engine maintenance expenses. Our fuel expense and directly-reimbursed engine expense decreased by $162.9 million and $13.9 million, respectively, during the year ended December 31, 2012, from the year ended December 31, 2011, due primarily to United purchasing an increased volume of fuel directly from vendors on flights we operated under our United Express Agreements and due to a reduction in the number of engine events from the prior year. Excluding the impact of the decrease in direct fuel and engine maintenance expense and associated reimbursements, our passenger revenues increased $59.5 million for year ended December 31, 2012 compared to the year ended December 31, 2011, which was primarily due to an increase in block-hour production, receipt of higher incentive payments and favorable compensation negotiations with our major partners.

        Because we use the direct-expense method of accounting for our CRJ200 engines and because we recognize revenue using the applicable fixed hourly rates under our Fixed-Rate Engine Contracts, the number of engine maintenance events and related expense we incur each reporting period operating under the Fixed-Rate Engine Contracts has a direct impact on the comparability of our operating income for the presented reporting periods. The CRJ200 Engine Overhaul Expense incurred under the Fixed-Rate Engine Contracts decreased $22.4 million during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in CRJ200 Engine Overhaul Expense

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was primarily due to a reduction in the number of scheduled engine maintenance events during the year ended December 31, 2012.

        Aircraft maintenance expense, excluding reimbursed engine overhauls and engine overhauls for our CRJ200s under our Fixed-Rate Engine Contracts, decreased $16.8 million, or 3.6%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in aircraft maintenance expense, excluding engine overhaul costs, for the year ended December 31, 2012, compared to the year ended December 31, 2011, was principally due to fewer scheduled maintenance events and certain cost reduction initiatives undertaken during the year ended December 31, 2012.

        Additionally, we experienced a $10.4 million reduction in other operating expenses, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in other operating expenses was primarily due to the reduction in property tax expense resulting from refunds received during the year ended December 31, 2012, a reduction in simulator training expense and a reduction in legal and consulting expenses.

        The items identified above were the principal factors that contributed to the significant improvement in our financial results during the year ended December 31, 2012, compared to the year ended December 31, 2011.

        During 2012, we reached an agreement with Delta to add 34 additional used dual-class Bombardier regional jet aircraft in exchange for the early termination of 66 CRJ200 aircraft under our Delta Connection Agreements. The additional dual-class aircraft were previously operated for Delta by other regional carriers. We anticipate the 34 additional dual-class aircraft will be subleased from Delta for a nominal amount. The 34 additional aircraft consist of five CRJ700s and 29 CRJ900s. As of December 31, 2012, we had taken delivery of 15 of the additional CRJ900s and five of the additional CRJ700s. We anticipate that the remaining aircraft will be delivered by June 2013. We anticipate that all 66 CRJ200 aircraft will be removed from the Delta Connection Agreements by December 31, 2015. Of the 66 CRJ200s scheduled to be removed, 41 CRJ200s are subleased from Delta for a nominal amount, which are scheduled to be returned to Delta without obligation to us.

        During 2012, we signed the American Agreements, which provide for us to operate 23 CRJ200s. The aircraft flown for American have been removed from our SkyWest Airlines and ExpressJet Delta Connection Agreements. We started our operations under the American Agreements on November 14, 2012, with 12 aircraft that are being flown out of Los Angeles International Airport by SkyWest Airlines. The other 11 aircraft were placed into service by ExpressJet on February 14, 2013 and are operated out of Dallas/Fort Worth International Airport.

        Total available seat miles ("ASMs") for the year ended December 31, 2012 increased 1.6%, compared to the year ended December 31, 2011. During the year ended December 31, 2012, we generated 37.3 billion ASMs, compared to 36.7 billion ASMs during the year ended December 31, 2011.

Critical Accounting Policies

        Our significant accounting policies are summarized in Note 1 to our consolidated financial statements for the year ended December 31, 2012, included in Item 8 of this Report. Critical accounting policies are those policies that are most important to the preparation of our consolidated financial statements and require management's subjective and complex judgments due to the need to make estimates about the effect of matters that are inherently uncertain. Our critical accounting policies relate to revenue recognition, aircraft maintenance, aircraft leases, impairment of long-lived assets and intangibles, stock-based compensation expense and fair value as discussed below. The application of these accounting policies involves the exercise of judgment and the use of assumptions as

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to future uncertainties and, as a result, actual results will differ, and could differ materially from such estimates.

Revenue Recognition

        Passenger and ground handling revenues are recognized when service is provided. Under our contract and pro-rate flying agreements with our code-share partners, revenue is considered earned when the flight is completed. Our agreements with our code-share partners contain certain provisions pursuant to which the parties could terminate the respective agreement, subject to certain rights of the other party, if certain performance criteria are not maintained. Our revenues could be impacted by a number of factors, including changes to the applicable code-share agreements, contract modifications resulting from contract renegotiations and our ability to earn incentive payments contemplated under applicable agreements. In the event contracted rates are not finalized at a quarterly or annual financial statement date, we record that period's revenues based on the lower of the prior period's approved rates adjusted for the current contract negotiations and our estimate of rates that will be implemented. Also, in the event we have a reimbursement dispute with a major partner at a quarterly or annual financial statement date, we evaluate the dispute under established revenue recognition criteria and, provided the revenue recognition criteria have been met, we recognize revenue for that period based on our estimate of the resolution of the dispute. Accordingly, we are required to exercise judgment and use assumptions in the application of our revenue recognition policy.

Maintenance

        We use the direct-expense method of accounting for our regional jet aircraft engine overhaul costs. Under this method, the maintenance liability is not recorded until the maintenance services are performed. We use the "deferral method" of accounting for our Brasilia turboprop engine overhauls, which provides for engine overhaul costs to be capitalized and depreciated to the next estimated overhaul event or to the remaining useful life, whichever is shorter. For leased aircraft, we are subject to lease return provisions that require a minimum portion of the "life" of an overhaul be remaining on the engine at the lease return date. With respect to engine overhauls related to leased Brasilia turboprops to be returned, we adjust the estimated useful lives of the final engine overhauls based on the respective lease return dates. With respect to SkyWest Airlines, a third-party vendor provides our long-term engine services covering the scheduled and unscheduled repairs for engines on our CRJ700s operated under our Fixed-Rate Engine Contracts. Under the terms of the vendor agreement, we pay a set dollar amount per engine hour flown on a monthly basis and the third-party vendor assumes the obligation to repair the engines at no additional cost to us, subject to certain specified exclusions. Thus, under the third-party vendor agreement, we expense the engine maintenance costs as flight hours are incurred on the engines and using the contractual rate set forth in the agreement.

Aircraft Leases

        The majority of SkyWest Airlines' aircraft are leased from third parties, while ExpressJet's aircraft flying for Delta are primarily debt-financed on a long-term basis, and the majority of ExpressJet's aircraft flying for United are leased from United for a nominal amount. In order to determine the proper classification of our leased aircraft as either operating leases or capital leases, we must make certain estimates at the inception of the lease relating to the economic useful life and the fair value of an asset as well as select an appropriate discount rate to be used in discounting future lease payments. These estimates are utilized by management in making computations as required by existing accounting standards that determine whether the lease is classified as an operating lease or a capital lease. All of our aircraft leases have been classified as operating leases, which results in rental payments being charged to expense over the terms of the related leases. Additionally, operating leases are not reflected

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in our consolidated balance sheet and accordingly, neither a lease asset nor an obligation for future lease payments is reflected in our consolidated balance sheets.

Impairment of Long-Lived Assets

        As of December 31, 2012, we had approximately $2.7 billion of property and equipment and related assets. Additionally, as of December 31, 2012, we had approximately $17.2 million in intangible assets. In accounting for these long-lived and intangible assets, we make estimates about the expected useful lives of the assets, the expected residual values of certain of these assets, and the potential for impairment based on the fair value of the assets and the cash flows they generate. We recorded an intangible of approximately $33.7 million relating to the acquisition of Atlantic Southeast in September 2005. The intangible is being amortized over fifteen years under the straight-line method. As of December 31, 2012, we had recorded $16.5 million in accumulated amortization expense. Factors indicating potential impairment include, but are not limited to, significant decreases in the market value of the long-lived assets, a significant change in the condition of the long-lived assets and operating cash flow losses associated with the use of the long-lived assets.

        When considering whether or not impairment of long-lived assets exists, we group similar assets together at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and compare the undiscounted cash flows for each asset group to the net carrying amount of the assets supporting the asset group. Asset groupings are done at the fleet or contract level. Based on the results of the evaluations performed as of December 31, 2012, our management concluded no impairment of long-lived assets was necessary as of December 31, 2012.

Stock-Based Compensation Expense

        We estimate the fair value of stock options as of the grant date using the Black-Scholes option pricing model. We use historical data to estimate option exercises and employee termination in the option pricing model. The expected term of options granted is derived from the output of the option pricing model and represents the period of time that options granted are expected to be outstanding. The expected volatilities are based on the historical volatility of our common stock and other factors.

Fair value

        We hold certain assets that are required to be measured at fair value in accordance with United States GAAP. We determined fair value of these assets based on the following three levels of inputs:

Level 1   —   Quoted prices in active markets for identical assets or liabilities.

Level 2
 
—
 
Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Some of our marketable securities primarily utilize broker quotes in a non-active market for valuation of these securities.

Level 3
 
—
 
Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities, therefore requiring an entity to develop its own assumptions.

        We utilize several valuation techniques in order to assess the fair value of our financial assets and liabilities. Our cash and cash equivalents primarily utilize quoted prices in active markets for identical assets or liabilities.

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        We have valued non-auction rate marketable securities using quoted prices in active markets for identical assets or liabilities. If a quoted price is not available, we utilize broker quotes in a non-active market for valuation of these securities. For auction-rate security instruments, quoted prices in active markets are no longer available. As a result, we have estimated the fair values of these securities utilizing a discounted cash flow model.

Results of Operations

Our Business Segments

        For the year ended December 31, 2012, we had two reportable segments which are the basis of our internal financial reporting: SkyWest Airlines and ExpressJet.

 
   2012   2011   $ Change   % Change  
 
   Amount   Amount   Amount   Percent  

Operating Revenues:

                          

SkyWest Airlines operating revenue

   $ 1,930,149   $ 2,002,830   $ (72,681 )   (3.6 )%

ExpressJet operating revenues

     1,593,527     1,640,837     (47,310 )   (2.9 )%

Other operating revenues

     10,696     11,256     (560 )   (5.0 )%
                   

Total Operating Revenues

   $ 3,534,372   $ 3,654,923   $ (120,551 )   (3.3 )%

Airline Expenses:

                          

SkyWest airlines expense

   $ 1,824,084   $ 1,944,816   $ (120,732 )   (6.2 )%

ExpressJet airlines expense

     1,611,982     1,739,623     (127,641 )   (7.3 )%

Other airline expense

     9,699     9,762     (63 )   (0.6 )%
                   

Total Airline Expense(1)

   $ 3,445,765   $ 3,694,201   $ (248,436 )   (6.7 )%

Segment profit (loss):

                          

SkyWest Airlines segment profit

   $ 106,065   $ 58,014   $ 48,051     82.8 %

ExpressJet segment (loss)

     (18,455 )   (98,786 )   80,331     (81.3 )%

Other profit

     997     1,494     (497 )   (33.3 )%
                   

Total Segment Profit (Loss)

   $ 88,607   $ (39,278 ) $ 127,885     (325.6 )%

Interest Income

     7,928     8,236     (308 )   (3.7 )%

Purchase Accounting Gain (adjustment)

     —     (5,711 )   5,711     100.0 %

Other

     (10,639 )   (13,417 )   2,778     (20.7 )%
                   

Consolidated Income (Loss) Before Taxes

   $ 85,896   $ (50,170 ) $ 136,066     (271.2 )%
                   
(1)
Total Airline Expense includes operating expense and interest expense

        SkyWest Airlines Segment Profit.    SkyWest Airlines segment profit increased $48.1 million, or 82.8%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The increase in SkyWest Airline's profit was due primarily to the following factors:

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        ExpressJet Segment Loss.    ExpressJet segment loss decreased $80.3 million, or 81.3%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in ExpressJet's loss was due primarily to the following factors:

2012 Compared to 2011

        Operational Statistics.    The following table sets forth our major operational statistics and the associated percentages-of-change for the periods identified below.

 
   Year Ended December 31,  
 
   2012   2011   % Change  

Revenue passenger miles (000)

     30,088,278     29,109,039     3.4 %

Available seat miles ("ASMs") (000)

     37,278,554     36,698,859     1.6 %

Block hours

     2,297,014     2,250,280     2.1 %

Departures

     1,435,512     1,390,523     3.2 %

Passengers carried

     58,803,690     55,836,271     5.3 %

Passenger load factor

     80.7 %   79.3 %   1.4pts  

Revenue per available seat mile

     9.5 ¢   10.0 ¢   (5.0 )%

Cost per available seat mile

     9.2 ¢   10.1 ¢   (8.9 )%

Fuel cost per available seat mile

     1.1 ¢   1.6 ¢   (31.3 )%

Average passenger trip length (miles)

     512     521     (1.7 )%

        Revenues.    Operating revenues decreased $120.6 million, or 3.3%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. We are reimbursed for our actual fuel costs by our major partners under our contract flying arrangements. For financial reporting purposes, we record these reimbursements as operating revenue. Under the Directly-Reimbursed Engine Contracts, we are reimbursed for our engine overhaul expenses as incurred. We also record those engine overhaul reimbursements as operating revenue. The following table summarizes the

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amount of fuel and engine overhaul reimbursements included in our passenger revenues for the periods indicated (dollar amounts in thousands).

 
   For the year ended December 31,  
 
   2012   2011   $ Change   % Change  

Passenger revenues

   $ 3,467,546   $ 3,584,777   $ (117,231 )   (3.3 )%

Less: Fuel reimbursement from major partners

     329,748     492,674     (162,926 )   (33.1 )%

Less: Engine overhaul reimbursement from major partners

     159,220     173,072     (13,852 )   (8.0 )%
                     

Passenger revenue excluding fuel and engine overhaul reimbursements

   $ 2,978,578   $ 2,919,031   $ 59,547     2.0 %

        Passenger revenues.    Passenger revenues decreased $117.2 million, or 3.3%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. Our passenger revenues, excluding fuel and engine overhaul reimbursements from major partners, increased $59.5 million, or 2.0%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The increase in passenger revenues, excluding fuel and engine overhaul reimbursements, was primarily due to an increase in block hours of 2.1% during the year ended December 31, 2012 compared to the year ended December 31, 2011. The increase in block hours was due primarily to the increase in total number of aircraft in operation, Block hour production is a significant revenue driver in our flying contracts with our major partners.

        Individual expense components attributable to our operations are expressed in the following table on the basis of cents per ASM. (dollar amounts in thousands).

 
   For the year ended December 31,  
 
   2012
Amount 		  2011
Amount 		  $ Change
Amount 		  % Change
Percent 		  2012
Cents Per
ASM 		  2011
Cents Per
ASM 		 

Aircraft fuel

   $ 426,387   $ 592,871   $ (166,484 )   (28.1 )%   1.1     1.6  

Salaries, wages and benefits

     1,171,689     1,155,051     16,638     1.4 %   3.1     3.1  

Aircraft maintenance, materials and repairs

     659,869     712,926     (53,057 )   (7.4 )%   1.8     1.9  

Aircraft rentals

     333,637     346,526     (12,889 )   (3.7 )%   0.9     0.9  

Depreciation and amortization

     251,958     254,182     (2,224 )   (0.9 )%   0.7     0.7  

Station rentals and landing fees

     169,855     174,838     (4,983 )   (2.9 )%   0.5     0.5  

Ground handling services

     125,148     131,462     (6,314 )   (4.8 )%   0.3     0.4  

Acquisition-related costs

     —     5,770     (5,770 )   NM     —     0.1  

Other

     229,842     240,192     (10,350 )   (4.3 )%   0.6     0.7  
                           

Total operating expenses

     3,368,385     3,613,818     (245,433 )   (6.8 )%   9.0     9.9  

Interest expense

     77,380     80,383     (3,003 )   (3.7 )%   0.2     0.2  
                           

Total airline expenses

   $ 3,445,765   $ 3,694,201     (248,436 )   (6.7 )%   9.2     10.1  
                           

        Fuel.    Fuel costs decreased $166.5 million, or 28.1%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The average cost per gallon of fuel increased to $3.59 during the year ended December 31, 2012, from $3.48 during the year ended December 31, 2011. Effective July 1, 2012, United began purchasing the majority of the fuel for flights we operated under our United Express contracts. Thus, the decrease in our fuel expense was primarily due to an increase in the volume of gallons of fuel our major partners purchased on flights we operated under our flying

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contracts. The following table summarizes the gallons of fuel we purchased directly, and the change in fuel price per gallon on our fuel expense, for the periods indicated:

 
   For the year ended December,  
(in thousands, except per gallon amounts)
  2012   2011   % Change  

Fuel gallons purchased

     118,765     170,332     (30.3 )%

Average price per gallon

   $ 3.59   $ 3.48     3.2 %

Fuel expense

   $ 426,387   $ 592,871     (28.1 )%

        Salaries Wages and Employee Benefits.    Salaries, wages and employee benefits increased $16.6 million, or 1.4%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The average number of full-time equivalent employees increased 0.9% to 18,590 for the year ended December 31, 2012, from 18,418 for the year ended December 31, 2011. The increase in the average number of full-time equivalent employees and resulting increase in labor costs for the year ended December 31, 2012, compared to the year ended December 31, 2011, was primarily due to an increase in block hours of 2.1% during the year ended December 31, 2012, compared to the year ended December 31, 2011.

        Aircraft maintenance, materials and repairs.    Aircraft maintenance expense decreased $53.1 million, or 7.4%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The following table summarizes the amount of engine overhauls and engine overhaul reimbursements included in our aircraft maintenance expense for the periods indicated (dollar amounts in thousands).

 
   For the year ended December 31,  
 
   2012   2011   $ Change   % Change  

Aircraft maintenance, materials and repairs

   $ 659,869   $ 712,926   $ (53,057 )   (7.4 )%

Less: Engine overhaul reimbursement from major partners

     159,220     173,072     (13,852 )   (8.0 )%

Less: CRJ200 engine overhauls reimbursed at fixed hourly rate

     55,183     77,582     (22,399 )   (28.9 )%
                     

Other aircraft maintenance, materials and repairs

   $ 445,466   $ 462,272   $ (16,806 )   (3.6 )%
                     

        Other aircraft maintenance, materials and repairs, decreased $16.8 million, or 3.6%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in aircraft maintenance expense excluding engine overhaul costs for the year ended December 31, 2012, compared to the year ended December 31, 2011, was primarily due to fewer scheduled maintenance events and our implementation of cost-reduction initiatives.

        We recognize engine maintenance expense on our CRJ200 engines on an as-incurred basis as maintenance expense. Under our Fixed-Rate Engine Contracts, we recognize revenue at fixed hourly rates for mature engine maintenance on regional jet engines. Accordingly, the timing of engine maintenance events associated with aircraft under the Fixed-Rate Engine Contracts can have a significant impact on our financial results. During the year ended December 31, 2012, our CRJ200 engine expense under our Fixed-Rate Engine Contracts decreased $22.4 million compared to the year ended December 31, 2011. The decrease in CRJ200 engine overhauls reimbursed under our Fixed-Rate Engine Contracts was principally due to fewer scheduled engine maintenance events. We expect a reduction in the number of scheduled engine maintenance events on our CRJ200s during 2013.

        Under our Directly-Reimbursed Engine Contracts, we are reimbursed for engine overhaul costs by our major partner at the time the maintenance event occurs. Such reimbursements are reflected as passenger revenue in our consolidated statements of comprehensive income (loss).

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        Aircraft rentals.    Aircraft rentals decreased $12.9 million, or 3.7%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease was primarily due to aircraft lease renewals at lower rates.

        Depreciation and amortization.    Depreciation and amortization expense decreased $2.2 million, or 0.9%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in depreciation expense was primarily due to certain rotable assets being fully depreciated during 2012 and a lower volume of capital expenditures.

        Station rentals and landing fees.    Station rentals and landing fees expense decreased $5.0 million, or 2.9%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in station rentals and landing fees expense was primarily due to our major partners paying for certain station rents and landing fees directly to the applicable airports.

        Ground handling service.    Ground handling service expense decreased $6.3 million, or 4.8%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in ground handling service expense was primarily due to a reduction in outsourced ground handling services resulting from the termination of SkyWest Airlines' AirTran code share agreement during the year ended December 31, 2011.

        Acquisition-related costs.    During the year ended December 31, 2011, we incurred $5.8 million of direct severance, legal and advisor fees associated with Atlantic Southeast's acquisition of ExpressJet Delaware in November 2010. We did not incur comparable expense during the year ended December 31, 2012.

        Other operating expenses.    Other expenses, primarily consisting of property taxes, hull and liability insurance, crew simulator training and crew hotel costs, decreased $10.4 million, or 4.3%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The decrease in other operating expenses was primarily due to the reduction in property tax expense resulting from refunds received during the year ended December 31, 2012, a reduction in simulator training expense and a reduction in legal and consulting expenses.

        Total airline expenses.    Total airline expenses (consisting of total operating and interest expenses) decreased $248.4 million, or 6.7%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. We are reimbursed for our actual fuel costs by our major partners under our contract flying arrangements. We record the amount of those reimbursements as revenue. Under our Directly-Reimbursed Engine Contracts, we are reimbursed for our engine overhaul expense, which we record as revenue. The following table summarizes the amount of fuel and engine overhaul expenses which are included in our total airline expenses for the periods indicated (dollar amounts in thousands).

 
   For the year ended December 31,  
 
   2012   2011   $ Change   % Change  

Total airline expense

   $ 3,445,765   $ 3,694,201   $ (248,436 )   (6.7 )%

Less: Fuel expense

     426,387     592,871     (166,484 )   (28.1 )%

Less: Engine overhauls Directly-Reimbursed Engine Contracts

     159,220     173,072     (13,852 )   (8.0 )%

Less: CRJ200 engine overhauls reimbursed at fixed hourly rate

     55,183     77,582     (22,399 )   (28.9 )%
                     

Total airline expense excluding fuel and engine overhauls and CRJ200 engine overhauls reimbursed at fixed hourly rate

   $ 2,804,975   $ 2,850,676   $ (45,701 )   (1.6 )%

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        Excluding fuel and engine overhaul costs and CRJ200 engine overhauls reimbursed at fixed hourly rates, our total airline expenses decreased $45.7 million, or 1.6%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The percentage decrease in total airline expenses, excluding fuel and engine overhauls, was different than the percentage increase in passenger revenues, excluding fuel and engine overhaul reimbursements from major partners, due primarily to the factors described above.

        Other expenses, net.    Other expenses, net decreased $2.8 million during the year ended December 31, 2012, compared to the year ended December 31, 2011. Other expenses primarily consist of earnings and losses from our investments in TRIP and Air Mekong, which we account for under the equity method of accounting. The decrease in other expenses was due primarily to our recognition of our portion of the losses incurred by TRIP and Air Mekong during the applicable periods.

        Adjustment to Purchase Accounting Gain.    In connection with the preparation of ExpressJet's 2010 tax return, an adjustment to the ExpressJet acquisition accounting was identified that resulted in an increase to the acquired deferred tax liabilities of $5.7 million, which was reflected on the consolidated statement of comprehensive income (loss) under the caption "Purchase accounting gain (adjustment)" for the year ended December 31, 2011. We did not incur comparable expenses during the year ended December 31, 2012.

        Income Taxes Expense.    Our effective tax rate for the years ended December 31, 2012 and 2011 was higher than the federal statutory rate of 35%, primarily due to state income taxes and expenses we incurred with limited tax deductibility relative to our pre-tax income for the year. Additionally, in conjunction with the preparation of the ExpressJet's 2010 income tax return during the year ended December 31, 2011, we revised our estimate of the 2010 ExpressJet post-acquisition tax loss recorded as a deferred tax asset as of December 31, 2010, which resulted in a $7.2 million benefit .

        Net Income (loss).    Primarily due to factors described above, we had net income of $51.2 million, or $0.99 per diluted share, for the year ended December 31, 2012, compared to net loss of $(27.3) million, or ($0.52) per diluted share, for the year ended December 31, 2011.

Our Business Segments

        For the year ended December 31, 2012, we had two reportable segments which are the basis of our internal financial reporting: SkyWest Airlines and ExpressJet (which reflects the combined operations of Atlantic Southeast and ExpressJet Delaware). On December 31, 2011, we completed the ExpressJet Combination, which ended ExpressJet Delaware's existence as a separate entity. On November 12, 2010, we completed the ExpressJet Merger. Our 2010 operating revenues, airline expenses and segment

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profit contain 50 days of ExpressJet Delaware operating results. Therefore, the 2010 amounts represent Atlantic Southeast's operating results and 50 days of ExpressJet Delaware's operating results.

 
   2011   2010   $ Change   % Change  
 
   Amount   Amount   Amount   Percent  

Operating Revenues:

                          

SkyWest Airlines operating revenue

   $ 2,002,830   $ 1,904,472   $ 98,358     5.2 %

ExpressJet operating revenues

     1,640,837     855,095     785,742     91.9 %

Other operating revenues

     11,256     5,578     5,678     101.8 %
                   

Total Operating Revenues

   $ 3,654,923   $ 2,765,145   $ 889,778     32.2 %

Airline Expenses:

                          

SkyWest airlines expense

   $ 1,944,816   $ 1,813,406   $ 131,410     7.2 %

ExpressJet airlines expense

     1,739,623     832,043     907,580     109.1 %

Other airline expense

     9,762     4,387     5,375     122.5 %
                   

Total Airline Expense(1)

   $ 3,694,201   $ 2,649,836   $ 1,044,365     39.4 %

Segment profit (loss):

                          

SkyWest Airlines segment profit

   $ 58,014   $ 91,066   $ (33,052 )   (36.3 )%

ExpressJet segment profit (loss)

     (98,786 )   23,052     (121,838 )   (528.5 )%

Other profit

     1,494     1,191     303     25.4 %
                   

Total Segment Profit (Loss)

   $ (39,278 ) $ 115,309   $ (154,587 )   (134.1 )%

Interest Income

     8,236     14,376     (6,140 )   (42.7 )%

Purchase Accounting Gain (Adjustment)

     (5,711 )   15,586     (21,297 )   (136.6 )%

Other

     (13,417 )   630     (14,047 )   (2229.7 )%
                   

Consolidated Income (Loss) Before Taxes

   $ (50,170 ) $ 145,901   $ (196,071 )   (134.4 )%
                   
(1)
Total Airline Expense includes operating expense and interest expense

        SkyWest Airlines Segment Profit.    SkyWest Airlines segment profit decreased $33.1 million, or 36.3%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The decrease in SkyWest Airlines' profit was due primarily to aircraft maintenance expense, excluding reimbursed engine overhauls, which increased $27.6 million during the year ended December 31, 2011, compared to the year ended December 31, 2010.

        ExpressJet Segment Profit(Loss).    ExpressJet segment loss was $98.8 million during the year ended December 31, 2011, compared to a segment profit of $23.1 million for the year ended December 31, 2010. The decrease in ExpressJet's profit was due to the following factors:

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2011 Compared to 2010

        Operational Statistics.    The following table sets forth our major operational statistics and the associated percentages-of-change for the periods identified below.

 
   Year Ended December 31,  
 
   2011   2010   % Change  

Revenue passenger miles (000)

     29,109,039     20,227,220     43.9 %

Available seat miles ("ASMs") (000)

     36,698,859     25,503,845     43.9 %

Block hours

     2,250,280     1,547,562     45.4 %

Departures

     1,390,523     1,001,766     38.8 %

Passengers carried

     55,836,271     40,411,089     38.2 %

Passenger load factor

     79.3 %   79.3 %   0.0 pts  

Revenue per available seat mile

     10.0 ¢   10.8 ¢   (7.4 )%

Cost per available seat mile

     10.1 ¢   10.4 ¢   (2.9 )%

Fuel cost per available seat mile

     1.6 ¢   1.3 ¢   23.1 %

Average passenger trip length (miles)

     521     501     4.0 %

        Revenues.    Operating revenues increased $889.8 million, or 32.2%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. We are reimbursed for our actual fuel costs by our major partners under our contract flying arrangements. For financial reporting purposes, we record these reimbursements as operating revenue. Under the Directly-Reimbursed Engine Contracts, we are reimbursed for our engine overhaul expenses as incurred. We also record those engine overhaul reimbursements as operating revenue. The following table summarizes the amount of fuel and engine overhaul reimbursements included in our passenger revenues for the periods indicated (dollar amounts in thousands).

 
   For the year ended December 31,  
 
   2011   2010   $ Change   % Change  

Passenger revenues

   $ 3,584,777   $ 2,724,276   $ 860,501     31.6 %

Less: Fuel reimbursement from major partners

     492,674     258,523     234,151     90.6 %

Less: Engine overhaul reimbursement from major partners

     173,072     106,241     66,831     62.9 %
                     

Passenger revenue excluding fuel and engine overhaul reimbursements

   $ 2,919,031   $ 2,359,512   $ 559,519     23.7 %

        Passenger revenues.    Passenger revenues increased $860.5 million, or 31.6%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The increase in passenger revenues was primarily due to the expansion of our operations following the completion of the ExpressJet Merger. Our passenger revenues, excluding fuel and engine overhaul reimbursements from major partners, increased $559.5 million, or 23.7%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The increase in passenger revenues, excluding fuel and engine overhaul reimbursements, was primarily due to an increase in block hours of 45.4% during the year ended December 31, 2011, compared to the year ended December 31, 2010. The block hour increase was primarily due to the expansion of our operations following the completion of the ExpressJet Merger. The increase in passenger revenues, excluding fuel and engine overhaul reimbursements, was less than the increase in block hours primarily due to differences between the United Express Agreement and our other code-share agreements. Under the United Express Agreement, United pays for more costs directly (such as station rents and aircraft ownership) and as such, there are no associated reimbursements recognized as revenue on costs paid directly by United. Under our other code-share agreements, the majority of those costs are paid by SkyWest and ExpressJet and the reimbursements received from their major partners are included in revenue. As such we do not expect the ExpressJet operations to increase revenue at the same rate as the projected increase in block hours.

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        In addition, the Delta Connection Agreements also provide that, beginning with the fifth anniversary of the execution of the agreements (September 8, 2010), Delta has the right to require that certain contractual rates under those agreements shall not exceed the second lowest rates of all carriers within the Delta Connection Program. During the fourth quarter of 2010, SkyWest Airlines and Atlantic Southeast reached an agreement with Delta on contractual rates satisfying the second-lowest rate provision and agreed on rates through December 31, 2015. Delta additionally waived its right to require that the contractual rates payable under the Delta Connection Agreements shall not exceed the second lowest of all carriers within the Delta Connection Program through December 31, 2015. As a result of the negotiated adjustment of the contractual rates under the Delta Connection Agreements, our passenger revenues for the year ended December 31, 2011 were approximately $21.7 million lower than they would have been under the rates that existed prior to the adjustment. Additionally, SkyWest Airlines and Atlantic Southeast finalized certain contractual rates from September 8, 2008 through December 31, 2010 with Delta. As a result, we recorded $10.3 million in additional revenue as a result of the finalization of contractual rates during the quarter ended December 31, 2010. Under the terms of the SkyWest Airlines and ExpressJet Delta Connection Agreements, Delta has agreed to compensate SkyWest Airlines and ExpressJet for initiatives that directly result in pass through cost savings. Delta agreed to share such savings with SkyWest Airlines and ExpressJet on an equal basis for a twelve-month period. During the three months ended December 31, 2010, Delta paid, and SkyWest Airlines and Atlantic Southeast recognized, approximately $6.9 million in cost savings revenue. We did not receive similar payments during the year ended December 31, 2011. In addition, under our ExpressJet Delta Connection Agreement and our SkyWest Airlines and ExpressJet United Express Agreements we are paid an incentive compensation upon the achievement of certain performance criteria. Our passenger revenues for the year ended December 31, 2011 were $18.9 million lower, compared to the year ended December 31, 2010, due primarily to our receipt of lower incentive payments.

        Ground handling and other.    Total ground handling and other revenues increased $29.3 million, or 71.6%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. Revenue attributed to ground handling services for our aircraft is reflected in our consolidated statements of comprehensive income (loss) under the heading "Passenger revenues" and revenue attributed to handling third-party aircraft is reflected in our consolidated statements of comprehensive income (loss) under the heading "Ground handling and other." The increase in ground handling and other revenues was primarily related to the expansion of our operations following the completion of the ExpressJet Merger and aircraft rental revenue received from other airlines. During the year ended December 31, 2010, we obtained leases for four CRJ900s and subleased those aircraft to Air Mekong.

        Individual expense components attributable to our operations are expressed in the following table on the basis of cents per ASM. ASM is a common metric used in the airline industry to measure an airline's passenger capacity. ASMs reflect both the number of aircraft in an airline's fleet and the seat capacity for the aircraft in the fleet. As the size of our fleet is the underlying driver of our operating costs, the primary basis for our presentation of the following information on a cost per ASM basis is to

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discuss significant changes in our costs not proportionate to the relative changes in our fleet size (dollar amounts in thousands).

 
   For the year ended December 31,  
 
   2011   2010   $ Change   % Change   2011
Cents
Per
ASM 		  2010
Cents
Per
ASM 		 
 
   Amount   Amount   Amount   Percent  

Aircraft fuel

   $ 592,871   $ 340,074   $ 252,797     74.3 %   1.6     1.3  

Salaries, wages and benefits

     1,155,051     764,933     390,118     51.0 %   3.1     3.0  

Aircraft maintenance, materials and repairs

     712,926     487,466     225,460     46.3 %   1.9     1.9  

Aircraft rentals

     346,526     311,909     34,617     11.1 %   0.9     1.2  

Depreciation and amortization

     254,182     236,499     17,683     7.5 %   0.7     0.9  

Station rentals and landing fees

     174,838     129,537     45,301     35.0 %   0.5     0.5  

Ground handling services

     131,462     110,649     20,813     18.8 %   0.4     0.4  

Acquisition related costs

     5,770     8,815     (3,045 )   (34.5 )   0.1     0.1  

Other

     240,192     173,437     66,755     38.5 %   0.7     0.7  
                           

Total operating expenses

     3,613,818     2,563,319     1,050,499     41.0 %   9.9     10.0  

Interest

     80,383     86,517     (6,134 )   (7.1 )%   0.2     0.4  
                           

Total airline expenses

   $ 3,694,201   $ 2,649,836     1,044,365     39.4 %   10.1     10.4  
                           

        Fuel.    Fuel costs increased $252.8 million, or 74.3%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The average cost per gallon of fuel increased to $3.48 per gallon during the year ended December 31, 2011, from $2.74 during the year ended December 31, 2010. The amount fuel costs incurred under our revenue-sharing arrangements increased $18.7 million during the year ended December 31, 2011, compared to the year ended December 31, 2010. The following table summarizes the gallons of fuel we purchased directly, and the change in fuel price per gallon on our fuel expense, for the periods indicated:

 
   For the year ended December,  
(in thousands, except per gallon amounts)
  2011   2010   % Change  

Fuel gallons purchased

     170,332     124,094     37.3 %

Average price per gallon

   $ 3.48   $ 2.74     27.0 %

Fuel expense

   $ 592,871   $ 340,074     74.3 %

        Salaries, wages and benefits.    Salaries, wages and benefits increased $390.1 million, or 51.0%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The average number of full-time equivalent employees increased 37.8% to 18,418 for the year ended December 31, 2011, from 13,363 for the year ended December 31, 2010, due primarily to the expansion of our operations following the completion of the ExpressJet Merger.

        Aircraft maintenance, materials and repairs.    Aircraft maintenance, materials and repair costs increased $225.5 million, or 46.3%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The following table summarizes the amount of engine overhauls and engine

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overhaul reimbursements included in our aircraft maintenance expense for the periods indicated (dollar amounts in thousands).

 
   For the year ended December 31,  
 
   2011   2010   $ Change   % Change  

Aircraft maintenance, materials and repairs

   $ 712,926   $ 487,466   $ 225,460     46.3 %

Less: Engine overhaul reimbursed from major partners

     173,072     106,241     66,831     62.9 %

Less: CRJ200 engine overhauls reimbursed at fixed hourly rate

     77,582     75,706     1,876     2.5 %
                     

Other aircraft maintenance, materials and repairs

   $ 462,272   $ 305,519   $ 156,753     51.3 %
                     

        Other aircraft maintenance, materials and repairs increased $156.8 million, or 51.3%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The increase in maintenance expense, excluding engine overhaul costs, was principally due to the expansion of our operations following the completion of the ExpressJet Merger, higher than expected maintenance costs on scheduled events due to our aging fleet and replacement of aircraft parts and repairs in advance of our schedule.

        We recognize engine maintenance expense on our CRJ200 regional jet engines on an as-incurred basis as maintenance expense. Under our Fixed-Rate Engine Contracts, we recognize revenue at fixed hourly rates for mature engine maintenance on regional jet engines. Accordingly, the timing of engine maintenance events associated with aircraft under Fixed-Rate Engine Contracts can have a significant impact on our financial results. During the year ended December 31, 2011, our CRJ200 engine expense under our Fixed-Rate Engine Contracts increased $1.9 million compared to the year ended December 31, 2010. The increase in CRJ200 engine overhauls reimbursed under our Fixed-Rate Engine Contracts was principally due to scheduled engine maintenance events.

        Under our Directly-Reimbursed Engine Contracts, we are reimbursed for engine overhaul costs by our major partners at the time the maintenance event occurs. Such reimbursements are reflected as passenger revenue in our consolidated statements of comprehensive income (loss).

        Aircraft rentals.    Aircraft rental expense increased $34.6 million, or 11.1%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The increase was primarily due expansion of our operations following the completion of the ExpressJet Merger. Approximately, $28.8 million of the additional aircraft rental expense was attributable to aircraft operated under the ExpressJet United Express Agreement.

        Depreciation and amortization.    Depreciation and amortization expense increased $17.7 million, or 7.5%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The increase in depreciation expense was primarily due to the expansion of our operations following the completion of the ExpressJet Merger.

        Station rentals and landing fees.    Station rentals and landing fees expense increased $45.3 million, or 35.0%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The increase in station rentals and landing fees expense was primarily due to the expansion of our operations following the completion of the ExpressJet Merger. Without the expansion of the ExpressJet Delaware operations, station rentals and landing fees would have decreased, primarily due to our major partners paying for certain station rents and landing fees directly to the applicable airports.

        Ground handling service.    Ground handling service expense increased $20.8 million, or 18.8%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The increase in ground handling service expense was primarily due to the expansion of our operations following the completion of the ExpressJet Merger.

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        Acquisition-related costs.    During the year ended December 31, 2011, we incurred $5.8 million of direct severance, legal and advisor fees associated with the ExpressJet Merger and integration related costs, including advisory fees to assist Atlantic Southeast and ExpressJet in their efforts to operate under a single operating certificate.

        Other expenses.    Other expenses, primarily consisting of property taxes, hull and liability insurance, crew simulator training and crew hotel costs, increased $66.8 million, or 38.5%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The increase in other expenses was primarily due to the expansion of our operations following the completion of the ExpressJet Merger.

        Interest.    Interest expense decreased $6.1 million, or 7.1%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The decrease in interest expense was primarily due to a decrease in long-term debt. At December 31, 2011, we had $1,815.4 million of long-term debt, compared to $1,898.0 million of debt as of December 31, 2010.

        Total Airline Expenses.    Total airline expenses (consisting of total operating and interest expenses) increased $1,044.4 million, or 39.4%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. We are reimbursed for our actual fuel costs by our major partners under our contract flying arrangements. We record the amount of those reimbursements as revenue. Under the Directly-Reimbursed Engine Contract and the United CPA, we are reimbursed for our engine overhaul expense, which we record as revenue. The following table summarizes the amount of fuel and engine overhaul expenses which are included in our total airline expenses for the periods indicated (dollar amounts in thousands).

 
   For the year ended December 31,  
 
   2011   2010   $ Change   % Change  

Total airline expense

   $ 3,694,201   $ 2,649,836   $ 1,044,365     39.4 %

Less: Fuel expense

     592,871     340,074     252,797     74.3 %

Less: Engine overhaul reimbursement from major partners

     173,072     106,241     66,831     62.9 %

Less: CRJ200 engine overhauls reimbursed at fixed hourly rate

     77,582     75,706     1,876     2.5 %
                     

Total airline expense excluding fuel and engine overhauls and CRJ200 engine overhauls reimbursed at fixed hourly rate

   $ 2,850,676   $ 2,127,815   $ 722,861     34.0 %

        Excluding fuel and engine overhaul costs and CRJ200 engine overhauls reimbursed at fixed hourly rates, our total airline expenses increased $722.9 million, or 34.0%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The percentage increase in total airline expenses, excluding fuel and engine overhauls, was more than the percentage increase in passenger revenues, excluding fuel and engine overhaul reimbursements from major partners due primarily to the factors described above.

        Interest Income.    Interest income decreased $6.1 million, or 42.7%, during the year ended December 31, 2011, compared to the year ended December 31, 2010. The decrease in interest income was due primarily to the retirement of a secured term loan that United repaid on August 11, 2010, which had an interest rate of 11%.

        Other, net.    Other expenses, net, increased $14.0 million during the year ended December 31, 2011, compared to the year ended December 31, 2010. Other expenses primarily consist of earnings and losses from our investments in TRIP and Air Mekong, which we account for under the equity

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method of accounting. The increase in other expense was due primarily to our recognition of our portion of the losses incurred by Trip and Air Mekong.

        Purchase Accounting Gain (Adjustment).    In connection with our preparation of the 2010 tax return, our management identified an adjustment to the ExpressJet acquisition accounting that resulted in an increase to the acquired deferred tax liabilities of $5.7 million. The adjustment is reflected on our consolidated statement of operations for the year ended December 31, 2011 under the caption "Purchase accounting gain (adjustment)."

        Net Income (loss).    Primarily due to factors described above, we incurred a net loss of $27.3 million, or $0.52 per diluted share, for the year ended December 31, 2011, compared to net income of $96.4 million, or $1.70 per diluted share, for the year ended December 31, 2010.

Liquidity and Capital Resources

Sources and Uses of Cash

        Cash Position and Liquidity.    The following table provides a summary of the net cash provided by (used in) our operating, investing and financing activities for the years ended December 31, 2012 and 2011, and our total cash and marketable securities position as of December 31, 2012 and December 31, 2011 (in thousands).

 
   For the year ended December 31,  
 
   2012   2011   $ Change   % Change  

Net cash provided by operating activities

   $ 288,824   $ 162,126   $ 126,698     78.1 %

Net cash used in investing activities

     (108,360 )   (11,553 )   (96,807 )   837.9 %

Net cash used in financing activities

     (176,218 )   (133,385 )   (42,833 )   32.1 %

 

 
   December 31,
2012 		  December 31,
2011 		  $ Change   % Change  

Cash and cash equivalents

   $ 133,772   $ 129,526   $ 4,246     3.3 %

Restricted cash

     19,553     19,434     119     0.6 %

Marketable securities

     556,117     497,552     58,565     11.8 %
                     

Total

   $ 709,442   $ 646,512   $ 62,930     9.7 %
                     

Cash Flows from Operating Activities.

        Net cash provided by our operating activities increased $126.7 million or 78.1%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The increase was primarily due to an increase in our pre-tax income during the year ended December 31, 2012, compared to our pre-tax loss during the year ended December 31, 2011. During the year ended December 31, 2012, we had a pre-tax income of $85.9 million compared to a pre-tax loss of $50.2 million for the year ended December 31, 2011. The remainder of the increase was due primarily to changes in our working capital accounts.

Cash Flows from Investing Activities.

        Net cash used in our investing activities increased $96.8 million or 837.9%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The increase was primarily due to an increase in the net purchases of marketable securities during the year ended December 31, 2012, compared to our net sales of marketable securities during the year ended December 31, 2011. During the year ended December 31, 2012, we had net purchases of marketable securities of $58.5 million compared to net sales of marketable securities of $173.6 million for the year ended December 31, 2011.

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During the year ended December 31, 2012, we did not make any deposits on aircraft, compared to $13.5 million of deposits on aircraft that we made during the year ended December 31, 2011. In addition, the acquisition of aircraft and rotable spare parts decreased by $101.7 million as compared to the year ended December 31, 2011.

Cash Flows from Financing Activities.

        Net cash used in our financing activities increased $42.8 million or 32.1%, during the year ended December 31, 2012, compared to the year ended December 31, 2011. The increase was primarily related to an increase in principal payments on long-term debt of $59.2 million. This increase was partially offset by a decrease in the amount we spent to repurchase outstanding shares of common stock. During the year ended December 31, 2012, we spent $0.9 million to repurchase shares of common stock, compared to $60.7 million for stock repurchases during the year ended December 31, 2011. In addition, the proceeds from the issuance of long-term debt during the year ended December 31, 2012 decreased by $31.6 million as compared to the year ended December 31, 2011.

Liquidity and Capital Resources

        We believe that in the absence of unusual circumstances, the working capital currently available to us, together with our projected cash flows from operations, will be sufficient to meet our present financial requirements, including anticipated expansion, planned capital expenditures, and scheduled lease payments and debt service obligations for at least the next 12 months.

        At December 31, 2012, our total capital mix was 48.5% equity and 51.5% long-term debt, compared to 45.4% equity and 54.6% long-term debt at December 31, 2011.

        As of December 31, 2012 and 2011, SkyWest Airlines had a $25 million line of credit. As of December 31, 2012 and 2011, SkyWest Airlines had no amount outstanding under the facility. The facility is scheduled to expire on March 31, 2013 and has a fixed interest rate of 4.0%.

        As of December 31, 2012, we had $75.1 million in letters of credit and surety bonds outstanding with various banks and surety institutions.

        As of December 31, 2012 and 2011, we classified $19.6 million and $19.4 million as restricted cash, respectively, related to our workers compensation policies.

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Significant Commitments and Obligations

General

        The following table summarizes our commitments and obligations as noted for each of the next five years and thereafter (in thousands):

 
   Total   2013   2014   2015   2016   2017   Thereafter  

Operating lease payments for aircraft and facility obligations

   $ 2,201,187   $ 387,999   $ 360,797   $ 309,378   $ 239,989   $ 182,291   $ 720,733  

Interest commitments(A)

     436,841     71,739     65,147     58,205     50,953     43,627     147,170  

Principal maturities on long-term debt

     1,642,022     171,454     177,390     184,510     188,240     161,735     758,693  
                               

Total commitments and obligations

   $ 4,280,050   $ 631,192   $ 603,334   $ 552,093   $ 479,182   $ 387,653   $ 1,626,596  
                               
(A)
At December 31, 2012, we had variable rate notes representing 31.7% of our total long-term debt. Actual interest commitments will change based on the actual variable interest.

Purchase Commitments and Options

        We have not historically funded a substantial portion of our aircraft acquisitions with working capital. Rather, we have generally funded our aircraft acquisitions through a combination of operating leases and long-term debt financing. At the time of each aircraft acquisition, we evaluate the financing alternatives available to us, and select one or more of these methods to fund the acquisition. In the event that alternative financing cannot be arranged at the time of delivery, Bombardier has typically financed our aircraft acquisitions until more permanent arrangements can be made. Subsequent to this initial acquisition of an aircraft, we may also refinance the aircraft or convert one form of financing to another (e.g., replacing debt financing with leveraged lease financing).

        At present, we intend to fund our acquisition of any additional aircraft through a combination of operating leases and debt financing, consistent with our historical practices. Based on current market conditions and discussions with prospective leasing organizations and financial institutions, we currently believe that we will be able to obtain financing for our committed acquisitions, as well as additional aircraft, without materially reducing the amount of working capital available for our operating activities. Nonetheless, recent disruptions in the credit markets have resulted in greater volatility, decreased liquidity and limited availability of capital, and there is no assurance that we will be able to obtain necessary funding or that, if we are able to obtain necessary capital, the corresponding terms will be favorable or acceptable to us.

Aircraft Lease and Facility Obligations

        We also have significant long-term lease obligations, primarily relating to our aircraft fleet. At December 31, 2012, we had 568 aircraft under lease with remaining terms ranging from one to 13 years. Future minimum lease payments due under all long-term operating leases were approximately $2.2 billion at December 31, 2012. Assuming a 4.7% discount rate, which is the average rate used to approximate the implicit rates within the applicable aircraft leases, the present value of these lease obligations would have been equal to approximately $1.8 billion at December 31, 2012.

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Long-term Debt Obligations

        As of December 31, 2012, we had $1.6 billion of long-term debt obligations related to the acquisition of CRJ200, CRJ700 and CRJ900 aircraft. The average effective interest rate on the debt related to the CRJ aircraft was approximately 4.5% at December 31, 2012.

Guarantees

        We have guaranteed the obligations of SkyWest Airlines under the SkyWest Airlines Delta Connection Agreement and the obligations of ExpressJet under the ExpressJet Delta Connection Agreement. We have also guaranteed the obligations of ExpressJet under the United CPA.

ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Aircraft Fuel

        In the past, we have not experienced difficulties with fuel availability and we currently expect to be able to obtain fuel at prevailing prices in quantities sufficient to meet our future needs. Pursuant to our contract flying arrangements, United, Delta, Alaska, American and US Airways have agreed to bear the economic risk of fuel price fluctuations on our contracted flights. We bear the economic risk of fuel price fluctuations on our pro-rate operations. For the year ended December 31, 2012, approximately 3% of our ASMs were flown under pro-rate arrangements. The average price per gallon of aircraft fuel increased 3.2% to $3.59 for the year ended December 31, 2012, from $3.48 for the year ended December 31, 2011. For illustrative purposes only, we have estimated the impact of the market risk of fuel on our pro-rate operations using a hypothetical increase of 25% in the price per gallon we purchase. Based on this hypothetical assumption, we would have incurred an additional $24.3 million in fuel expense for the year ended December 31, 2012.

Interest Rates

        Our earnings are affected by changes in interest rates due to the amounts of variable rate long-term debt and the amount of cash and securities held. The interest rates applicable to variable rate notes may rise and increase the amount of interest expense. We would also receive higher amounts of interest income on cash and securities held at the time; however, the market value of our available-for-sale securities would likely decline. At December 31, 2012, we had variable rate notes representing 31.7% of our total long-term debt compared to 33.0% of our long-term debt at December 31, 2011. For illustrative purposes only, we have estimated the impact of market risk using a hypothetical increase in interest rates of one percentage point for both variable rate long-term debt and cash and securities. Based on this hypothetical assumption, we would have incurred an additional $5.5 million in interest expense and received $6.5 million in additional interest income for the year ended December 31, 2012, and we would have incurred an additional $7.1 million in interest expense and received $6.4 million in additional interest income for the year ended December 31, 2011. However, under our contractual arrangement with our major partners, the majority of the increase in interest expense would be passed through and recorded as passenger revenue in our consolidated statements of comprehensive income (loss). If interest rates were to decline, our major partners would receive the principal benefit of the decline, since interest expense is generally passed through to our major partners, resulting in a reduction to passenger revenue in our consolidated statement of comprehensive income (loss).

        We currently intend to finance the acquisition of aircraft through manufacturer financing, third-party leases or long-term borrowings. Changes in interest rates may impact the actual cost to us to acquire these aircraft. To the extent we place these aircraft in service under our code-share agreements with Delta, United, or other carriers, our code-share agreements currently provide that reimbursement rates will be adjusted higher or lower to reflect changes in our aircraft rental rates.

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Auction Rate Securities

        We have investments in auction rate securities, which are classified as available for sale securities and reflected at fair value. As of December 31, 2012, we had investments in auction rate securities valued at a total of $3.8 million which were classified as Other assets on our consolidated balance sheet. For a more detailed discussion on auction rate securities, including our methodology for estimating their fair value, see Note 8 to our consolidated financial statements appearing in Item 8 of this Report.

ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

        The information set forth below should be read together with the "Management's Discussion and Analysis of Financial Condition and Results of Operations," appearing elsewhere herein.

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Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders
SkyWest, Inc.

        We have audited the accompanying consolidated balance sheets of SkyWest, Inc. and subsidiaries as of December 31, 2012 and 2011, and the related consolidated statements of comprehensive income (loss), stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2012. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

        We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

        In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of SkyWest, Inc. and subsidiaries at December 31, 2012 and 2011, and the consolidated results of their operations and their cash flows for each of the three years in the period ended December 31, 2012, in conformity with U.S. generally accepted accounting principles.

        We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), SkyWest, Inc. and subsidiaries' internal control over financial reporting as of December 31, 2012, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 15, 2013 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Salt Lake City, Utah
February 15, 2013

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Dollars in thousands)

ASSETS

 
   December 31,
2012 		  December 31,
2011 		 

CURRENT ASSETS:

              

Cash and cash equivalents

   $ 133,772   $ 129,526  

Marketable securities

     556,117     497,552  

Restricted cash

     19,553     19,434  

Income tax receivable

     —     1,568  

Receivables, net

     130,102     130,510  

Inventories, net

     113,581     115,211  

Prepaid aircraft rents

     325,999     285,737  

Deferred tax assets

     124,320     69,519  

Other current assets

     30,596     31,407  
           

Total current assets

     1,434,040     1,280,464  
           

PROPERTY AND EQUIPMENT:

              

Aircraft and rotable spares

     3,997,926     3,973,027  

Buildings and ground equipment

     274,085     291,294  
           

    4,272,011     4,264,321  

Less-accumulated depreciation and amortization

     (1,561,015 )   (1,380,846 )
           

Total property and equipment, net

     2,710,996     2,883,475  
           

OTHER ASSETS

              

Intangible assets, net

     17,248     19,497  

Other assets

     92,353     98,472  
           

Total other assets

     109,601     117,969  
           

Total assets

     4,254,637     4,281,908  
           

   

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS (Continued)

(Dollars in thousands)

LIABILITIES AND STOCKHOLDERS' EQUITY

 
   December 31,
2012 		  December 31,
2011 		 

CURRENT LIABILITIES:

              

Current maturities of long-term debt

   $ 171,454   $ 208,398  

Accounts payable

     222,671     220,784  

Accrued salaries, wages and benefits

     121,352     112,987  

Accrued aircraft rents

     12,745     22,285  

Taxes other than income taxes

     22,353     21,186  

Income tax payable

     1,255     —  

Other current liabilities

     39,595     38,508  
           

Total current liabilities

     591,425     624,148  
           

OTHER LONG TERM LIABILITIES

     57,422     50,194  
           

LONG TERM DEBT, net of current maturities

     1,470,568     1,606,993  
           

DEFERRED INCOME TAXES PAYABLE

     657,620     567,874  
           

DEFERRED AIRCRAFT CREDITS

     90,427     98,438  
           

COMMITMENTS AND CONTINGENCIES (Note 6)

              

STOCKHOLDERS' EQUITY:

              

Preferred stock, 5,000,000 shares authorized; none issued

     —     —  

Common stock, no par value, 120,000,000 shares authorized; 76,713,154 and 75,833,696 shares issued, respectively

     609,763     598,985  

Retained earnings

     1,147,117     1,104,144  

Treasury stock, at cost, 25,280,364 and 25,221,481 shares, respectively

     (371,211 )   (370,309 )

Accumulated other comprehensive income (Note 1)

     1,506     1,441  
           

Total stockholders' equity

     1,387,175     1,334,261  
           

Total liabilities and stockholders' equity

     4,254,637     4,281,908  
           

   

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(In thousands, except per share amounts)

 
   Year Ended December 31,  
 
   2012   2011   2010  

OPERATING REVENUES:

                    

Passenger

   $ 3,467,546   $ 3,584,777   $ 2,724,276  

Ground handling and other

     66,826     70,146     40,869  
               

Total operating revenues

     3,534,372     3,654,923     2,765,145  
               

OPERATING EXPENSES:

                    

Salaries, wages and benefits

     1,171,689     1,155,051     764,933  

Aircraft maintenance, materials and repairs

     659,869     712,926     487,466  

Aircraft fuel

     426,387     592,871     340,074  

Aircraft rentals

     333,637     346,526     311,909  

Depreciation and amortization

     251,958     254,182     236,499  

Station rentals and landing fees

     169,855     174,838     129,537  

Ground handling services

     125,148     131,462     110,649  

Acquisition related costs

     —     5,770     8,815  

Other, net

     229,842     240,192     173,437  
               

Total operating expenses

     3,368,385     3,613,818     2,563,319  
               

OPERATING INCOME

     165,987     41,105     201,826  
               

OTHER INCOME (EXPENSE):

                    

Interest income

     7,928     8,236     14,376  

Interest expense

     (77,380 )   (80,383 )   (86,517 )

Purchase accounting gain (adjustment)

     —     (5,711 )   15,586  

Other, net

     (10,639 )   (13,417 )   630  
               

Total other expense, net

     (80,091 )   (91,275 )   (55,925 )

INCOME (LOSS) BEFORE INCOME TAXES

     85,896     (50,170 )   145,901  

PROVISION (BENEFIT) FOR INCOME TAXES

     34,739     (22,835 )   49,551  
               

NET INCOME (LOSS)

   $ 51,157   $ (27,335 ) $ 96,350  
               

BASIC EARNINGS (LOSS) PER SHARE

   $ 1.00   $ (0.52 ) $ 1.73  
               

DILUTED EARNINGS (LOSS) PER SHARE

   $ 0.99   $ (0.52 ) $ 1.70  
               

Weighted average common shares:

                    

Basic

     51,090     52,201     55,610  

Diluted

     51,746     52,201     56,526  

COMPREHENSIVE INCOME (LOSS):

                    

Net income (loss)

   $ 51,157   $ (27,335 ) $ 96,350  

Proportionate share of other companies foreign currency translation adjustment, net of taxes

     (251 )   (295 )   637  

Net unrealized appreciation (depreciation) on marketable securities, net of taxes

     316     534     (745 )
               

TOTAL COMPREHENSIVE INCOME (LOSS)

   $ 51,222   $ (27,096 ) $ 96,242  
               

   

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(In thousands)

 
   Common Stock    
   Treasury Stock   Accumulated
Other
Comprehensive
Income (Loss) 		   
  
 
   Retained
Earnings 		   
  
 
   Shares   Amount   Shares   Amount   Total  

Balance at December 31, 2009

     74,627   $ 578,153   $ 1,052,375     (19,018 ) $ (279,619 ) $ 1,310   $ 1,352,219  

Net income

     —     —     96,350     —     —     —     96,350  

Proportionate share of other companies foreign currency translation adjustment, net of tax of $390

     —     —     —     —     —     637     637  

Net unrealized depreciation on marketable securities net of tax of $457

     —     —     —     —     —     (745 )   (745 )

Exercise of common stock options and issuance of restricted stock

     261     83     —     —     —     —     83  

Sale of common stock under employee stock purchase plan

     357     4,824     —     —     —     —     4,824  

Stock based compensation expense related to the issuance of stock options and restricted stock

     —     6,428     —     —     —     —     6,428  

Tax benefit from exercise of common stock options

     —     122     —     —     —     —     122  

Treasury stock purchases

     —     —     —     (2,054 )   (30,009 )   —     (30,009 )

Cash dividends declared ($0.16 per share)

     —     —     (8,986 )   —     —     —     (8,986 )
                               

Balance at December 31, 2010

     75,245     589,610     1,139,739     (21,072 )   (309,628 )   1,202     1,420,923  
                               

Net loss

     —     —     (27,335 )   —     —     —     (27,335 )

Proportionate share of other companies foreign currency translation adjustment, net of tax of $180

     —     —     —     —     —     (295 )   (295 )

Net unrealized appreciation on marketable securities net of tax of $327

     —     —     —     —     —     534     534  

Exercise of common stock options and issuance of restricted stock

     289     70     —     —     —     —     70  

Sale of common stock under employee stock purchase plan

     300     4,372     —     —     —     —     4,372  

Stock based compensation expense related to the issuance of stock options and restricted stock

     —     5,365     —     —     —     —     5,365  

Tax deficiency from exercise of common stock options

     —     (432 )   —     —     —     —     (432 )

Treasury stock purchases

     —     —     —     (4,149 )   (60,681 )   —     (60,681 )

Cash dividends declared ($0.16 per share)

     —     —     (8,260 )   —     —     —     (8,260 )
                               

Balance at December 31, 2011

     75,834     598,985     1,104,144     (25,221 )   (370,309 )   1,441     1,334,261  
                               

Net income

     —     —     51,157     —     —     —     51,157  

Proportionate share of other companies foreign currency translation adjustment, net of tax of $154

     —     —     —     —     —     (251 )   (251 )

Net unrealized appreciation on marketable securities, net of tax of $194

     —     —     —     —     —     316     316  

Exercise of common stock options and issuance of restricted stock

     392     1,879     —     —     —     —     1,879  

Sale of common stock under employee stock purchase plan

     487     4,068     —     —     —     —     4,068  

Stock based compensation expense related to the issuance of stock options and restricted stock

     —     4,693     —     —     —     —     4,693  

Tax benefit from exercise of common stock options

     —     138     —     —     —     —     138  

Treasury stock purchases

     —     —     —     (59 )   (902 )   —     (902 )

Cash dividends declared ($0.16 per share)

     —     —     (8,184 )   —     —     —     (8,184 )
                               

Balance at December 31, 2012

     76,713     609,763     1,147,117     (25,280 )   (371,211 )   1,506     1,387,175  
                               

   

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

 
   Year Ended December 31,  
 
   2012   2011   2010  

CASH FLOWS FROM OPERATING ACTIVITIES:

                    

Net income (loss)

   $ 51,157   $ (27,335 ) $ 96,350  

Adjustments to reconcile net income to net cash provided by operating activities:

                    

Depreciation and amortization

     251,958     254,182     236,499  

Stock based compensation expense

     4,693     5,365     6,428  

Loss (gain) on sale of property and equipment

     621     (29 )   (16 )

Undistributed losses (earnings) of other companies

     10,199     13,273     (635 )

Capitalized Brasilia engine overhauls

     (25,742 )   (17,792 )   (19,050 )

Purchase accounting gain (adjustment)

     —     5,711     (15,586 )

Net increase (decrease) in deferred income taxes

     34,800     (21,537 )   58,525  

Changes in operating assets and liabilities:

                    

Decrease (increase) in restricted cash

     (119 )   2,341     4,971  

Decrease (increase) in receivables

     408     (10,665 )   2,818  

Decrease in income tax receivable

     1,568     1,788     9,746  

Decrease (increase) in inventories

     1,630     (8,639 )   (2,071 )

Increase in other current assets and prepaid aircraft rents

     (39,451 )   (28,668 )   (19,532 )

Decrease in deferred aircraft credits

     (7,112 )   (8,586 )   (8,756 )

Increase (decrease) in accounts payable and accrued aircraft rents

     (7,653 )   10,161     6,289  

Increase (decrease) in other current liabilities

     11,867     (7,444 )   (8,891 )
               

NET CASH PROVIDED BY OPERATING ACTIVITIES

     288,824     162,126     347,089  
               

CASH FLOWS FROM INVESTING ACTIVITIES:

                    

Purchases of marketable securities

     (736,330 )   (683,396 )   (1,073,479 )

Sales of marketable securities

     677,798     857,031     1,047,553  

Purchase of ExpressJet, net of cash acquired

     —     —     (54,018 )

Payments received on note receivable from United Air Lines

     —     —     79,333  

Proceeds from the sale of property and equipment

     15,265     193     147  

Proceeds from installment payment of equity shares of TRIP

     8,064     —     —  

Acquisition of property and equipment:

                    

Aircraft and rotable spare parts

     (57,277 )   (158,942 )   (141,474 )

Deposits on aircraft

     —     (13,500 )   (400 )

Buildings and ground equipment

     (7,662 )   (13,756 )   (9,391 )

Decrease (increase) in other assets

     (8,218 )   817     (25,647 )
               

NET CASH USED IN INVESTING ACTIVITIES

     (108,360 )   (11,553 )   (177,376 )
               

CASH FLOWS FROM FINANCING ACTIVITIES:

                    

Proceeds from issuance of long-term debt

     44,900     76,454     81,698  

Principal payments on long-term debt

     (218,270 )   (159,038 )   (185,632 )

Return of deposits on aircraft and rotable spare parts

     —     13,900     4,247  

Net proceeds from issuance of common stock

     6,231     4,446     4,907  

Purchase of treasury stock

     (902 )   (60,681 )   (30,009 )

Payment of cash dividends

     (8,177 )   (8,466 )   (9,000 )
               

NET CASH USED IN FINANCING ACTIVITIES

     (176,218 )   (133,385 )   (133,789 )
               

Increase in cash and cash equivalents

     4,246     17,188     35,924  

Cash and cash equivalents at beginning of year

     129,526     112,338     76,414  
               

CASH AND CASH EQUIVALENTS AT END OF YEAR

     133,772     129,526     112,338  
               

SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:

                    

Cash paid (received) during the year for:

                    

Interest, net of capitalized amounts

   $ 78,407   $ 81,187   $ 85,931  

Income taxes

   $ (1,354 ) $ (2,198 ) $ (16,895 )

   

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

DECEMBER 31, 2011

(1) Nature of Operations and Summary of Significant Accounting Policies

        SkyWest, Inc. (the "Company"), through its subsidiaries, SkyWest Airlines, Inc. ("SkyWest Airlines") and ExpressJet Airlines, Inc. ("ExpressJet") operates the largest regional airline in the United States. As of December 31, 2012, SkyWest and ExpressJet offered scheduled passenger and air freight service with approximately 4,000 total daily departures to different destinations in the United States, Canada, Mexico and the Caribbean. Additionally, the Company provides ground handling services for other airlines throughout its system. As of December 31, 2012, the Company had a combined fleet of 744 aircraft consisting of the following:

 
   CRJ200   ERJ145   ERJ135   CRJ700   CRJ900   EMB120   Total  

United

     92     242     7     70     —     34     445  

Delta

     147     —     —     60     46     8     261  

US Airways

     15     —     —     —     —     —     15  

American

     12     —     —     —     —     —     12  

Alaska

     —     —     —     5     —     —     5  

Subleased to an un-affiliated entity

     2     —     —     —     —     —     2  

Subleased to an affiliated entity

     —     —     —     —     4     —     4  
                               

Total

     268     242     7     135     50     42     744  

        For the year ended December 31, 2012, approximately 64.8% of the Company's aggregate capacity was operated for United, approximately 32.2% was operated for Delta approximately 1.4% was operated for Alaska, approximately 1.4% was operated for US Airways and approximately 0.2% was operated for American.

        SkyWest Airlines has been a code-share partner with Delta in Salt Lake City and United in Los Angeles since 1987 and 1997, respectively. In 1998, SkyWest Airlines expanded its relationship with United to provide service in Portland, Seattle/Tacoma, San Francisco and additional Los Angeles markets. In 2004, SkyWest Airlines expanded its United Express operations to provide service in Chicago. In May 2011, SkyWest Airlines entered into a capacity purchase agreement with Alaska. In November 2011, SkyWest Airlines entered into a code share agreement with US Airways. In September, 2012, SkyWest Airlines and ExpressJet entered into code share agreements (the "American Agreements") with American Airlines, Inc. ("American"). As of December 31, 2012, SkyWest Airlines operated as a Delta Connection carrier in Salt Lake City and Minneapolis, a United Express carrier in Los Angeles, San Francisco, Denver, Houston, Chicago and the Pacific Northwest, an Alaska carrier in Seattle/ Tacoma and Portland, a US Airways carrier in Phoenix and an American carrier in Los Angeles.

        On November 17, 2011, the Company's wholly-owned subsidiaries, Atlantic Southeast Airlines, Inc. and ExpressJet Airlines, Inc., consolidated their operations under a single operating certificate, and on December 31, 2011, Atlantic Southeast Airlines, Inc. and ExpressJet Airlines, Inc. were merged, with the surviving corporation named ExpressJet Airlines, Inc. (the "ExpressJet Combination"). In the following Notes to Consolidated Financial Statements, "Atlantic Southeast" refers to Atlantic Southeast Airlines, Inc. for periods prior to the ExpressJet Combination, "ExpressJet Delaware" refers to ExpressJet Airlines, Inc., a Delaware corporation, for periods prior to the ExpressJet Combination, and "ExpressJet" refers to ExpressJet Airlines, Inc., the Utah corporation resulting from the combination of

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

DECEMBER 31, 2011

(1) Nature of Operations and Summary of Significant Accounting Policies (Continued)

Atlantic Southeast and ExpressJet Delaware, for periods subsequent to the ExpressJet Combination. At the time of the ExpressJet Combination, Atlantic Southeast had been a code-share partner with Delta in Atlanta since 1984 and a code-share partner with United since February 2010. As of December 31, 2012, ExpressJet operated as a Delta Connection carrier in Atlanta and Detroit and a United Express carrier in Chicago (O'Hare), Washington, D.C. (Dulles International Airport), Cleveland, Newark, Houston and Denver.

Basis of Presentation

        The Company's consolidated financial statements include the accounts of SkyWest, Inc. and its subsidiaries, including SkyWest Airlines and ExpressJet, with all inter-company transactions and balances having been eliminated.

        In preparing the accompanying consolidated financial statements, the Company has reviewed, as determined necessary by the Company's management, events that have occurred after December 31, 2012, up until the filing of the Company's annual report with the U.S. Securities and Exchange Commission.

Use of Estimates

        The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents

        The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. The Company classified $19.6 million and $19.4 million of cash as restricted cash as required by the Company's workers' compensation policy and classified it accordingly in the consolidated balance sheets as of December 31, 2012 and 2011, respectively.

Marketable Securities

        The Company's investments in marketable debt and equity securities are deemed by management to be available for sale and are reported at fair market value with the net unrealized appreciation (depreciation) reported as a component of accumulated other comprehensive income in stockholders' equity. At the time of sale, any realized appreciation or depreciation, calculated by the specific

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

DECEMBER 31, 2011

(1) Nature of Operations and Summary of Significant Accounting Policies (Continued)

identification method, is recognized in other income and expense. The Company's position in marketable securities as of December 31, 2012 and 2011 was as follows (in thousands):

 
   2012   2011  
Investment Types
  Cost   Market Value   Cost   Market Value  

Commercial paper

   $ 3,510   $ 3,514   $ 4,555   $ 4,557  

Bond and bond funds

     555,603     556,133     496,170     496,310  

Asset backed securities

     296     314     456     478  
                   

    559,409     559,961     501,181     501,345  

Unrealized appreciation

     552     —     164     —  
                   

Total

   $ 559,961   $ 559,961   $ 501,345   $ 501,345  
                   

        Marketable securities had the following maturities as of December 31, 2012 (in thousands):

Maturities
  Amount  

Year 2013

   $ 327,942  

Years 2014 through 2017

     160,116  

Years 2018 through 2022

     4,060  

Thereafter

     67,843  

        As of December 31, 2012, the Company had classified $556.1 million of marketable securities as short-term since it has the intent to maintain a liquid portfolio and the ability to redeem the securities within one year. The Company has classified approximately $3.8 million of investments as non-current and has identified them as "Other assets" in the Company's consolidated balance sheet as of December 31, 2012 (see Note 7).

Inventories

        Inventories include expendable parts, fuel and supplies and are valued at cost (FIFO basis) less an allowance for obsolescence based on historical results and management's expectations of future operations. Expendable inventory parts are charged to expense as used. An obsolescence allowance for flight equipment expendable parts is accrued based on estimated lives of the corresponding fleet types and salvage values. The inventory allowance as of December 31, 2012 and 2011 was $9.2 million and $8.2 million, respectively. These allowances are based on management estimates, which are subject to change.

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

DECEMBER 31, 2011

(1) Nature of Operations and Summary of Significant Accounting Policies (Continued)

Property and Equipment

        Property and equipment are stated at cost and depreciated over their useful lives to their estimated residual values using the straight-line method as follows:

Assets
  Depreciable Life   Residual Value  

Aircraft and rotable spares

   10 - 18 years     0 - 30 %

Ground equipment

   5 - 10 years     0 %

Office equipment

   5 - 7 years     0 %

Leasehold improvements

   15 years or life of the lease     0 %

Buildings

   20 - 39.5 years     0 %

Impairment of Long Lived Assets

        As of December 31, 2012, the Company had approximately $2.7 billion of property and equipment and related assets. Additionally, as of December 31, 2012, the Company had approximately $17.2 million in intangible assets. In accounting for these long-lived and intangible assets, the Company makes estimates about the expected useful lives of the assets, the expected residual values of certain of these assets, and the potential for impairment based on the fair value of the assets and the cash flows they generate. On September 7, 2005, the Company completed the acquisition of all of the issued and outstanding capital stock of Atlantic Southeast and recorded an intangible asset of approximately $33.7 million relating to the acquisition. The intangible asset is being amortized over fifteen years under the straight-line method. As of December 31, 2012 and 2011, the Company had $16.5 million and $14.3 million in accumulated amortization expense, respectively. Factors indicating potential impairment include, but are not limited to, significant decreases in the market value of the long-lived assets, a significant change in the condition of the long-lived assets and operating cash flow losses associated with the use of the long-lived assets. On a periodic basis, the Company evaluates whether impairment indicators are present. When considering whether or not impairment of long-lived assets exists, we group similar assets together at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and compare the undiscounted cash flows for each asset group to the net carrying amount of the assets supporting the asset group. Asset groupings are done at the fleet or contract level. No impairments of long-lived assets were recognized during 2012, 2011, or 2010.

Capitalized Interest

        Interest is capitalized on aircraft purchase deposits as a portion of the cost of the asset and is depreciated over the estimated useful life of the asset. During the years ended December 31, 2012, 2011 and 2010, the Company capitalized interest costs of approximately $0, $0, and $5,000, respectively.

Maintenance

        The Company operates under an FAA-approved continuous inspection and maintenance program. The Company uses the direct expense method of accounting for its regional jet engine overhauls wherein the expense is recorded when the overhaul event occurs. The Company has an engine services agreement with a third party vendor to provide long-term engine services covering the scheduled and

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

DECEMBER 31, 2011

(1) Nature of Operations and Summary of Significant Accounting Policies (Continued)

unscheduled repairs for certain of its Bombardier CRJ700 Regional Jets ("CRJ700s") and Embraer S.A. ("Embraer") ERJ145 regional jet ("ERJ 145") aircraft. Under the terms of the agreement, the Company pays a set dollar amount per engine hour flown on a monthly basis and the third party vendor will assume the responsibility to repair the engines at no additional cost to the Company, subject to certain specified exclusions. Maintenance costs under these contracts are recognized when the engine hour is flown pursuant to the terms of the contract. The Company uses the "deferral method" of accounting for its Embraer Brasilia EMB-120 turboprop aircraft ("Brasilia turboprop") engine overhauls wherein the overhaul costs are capitalized and depreciated to the next estimated overhaul event. The costs of maintenance for airframe and avionics components, landing gear and normal recurring maintenance are expensed as incurred. For leased aircraft, the Company is subject to lease return provisions that require a minimum portion of the "life" of an overhaul be remaining on the engine at the lease return date. For Brasilia turboprop engine overhauls related to leased aircraft to be returned, the Company adjusts the estimated useful lives of the final engine overhauls based on the shorter of the remaining useful life or the respective lease return dates.

Passenger and Ground Handling Revenues

        The Company recognizes passenger and ground handling revenues when the service is provided. Under the Company's contract and pro-rate flying agreements with Delta, United, US Airways, American and Alaska, revenue is considered earned when the flight is completed. Revenue is recognized under the Company's pro-rate flying agreements based upon the portion of the pro-rate passenger fare the Company anticipates that it will receive. Other ancillary revenues commonly associated with airlines such as baggage fee revenue, ticket change fee revenue and the marketing component of the sale of mileage credits are retained by the Company's major airline partners on flights that the Company operates under its code-share agreements.

Delta Connection Agreements

        SkyWest Airlines and ExpressJet are each parties to a Delta Connection Agreement with Delta, pursuant to which SkyWest Airlines and ExpressJet provide contract flight services for Delta. The Delta Connection Agreements provide for fifteen-year terms, subject to early termination by Delta, SkyWest Airlines or ExpressJet, as applicable, upon the occurrence of certain events. Delta's termination rights include (i) cross- termination rights between the two Delta Connection Agreements, (ii) the right to terminate each of the Delta Connection Agreements upon the occurrence of certain force majeure events, including certain labor-related events, that prevent SkyWest Airlines or ExpressJet from performance for certain periods, and (iii) the right to terminate each of the Delta Connection Agreements if SkyWest Airlines or ExpressJet fails to maintain competitive base rate costs, subject to certain adjustment rights. The SkyWest Airlines and ExpressJet Delta Connection Agreements contain multi-year rate reset provisions beginning in 2010 and continuing each 5th year thereafter. In addition to the termination rights, Delta has the right to extend the term of the Delta Connection Agreements upon the occurrence of certain events or at the expiration of the initial term. SkyWest Airlines and ExpressJet have the right to terminate their respective Delta Connection Agreement upon the occurrence of certain breaches by Delta, including the failure to cure payment defaults. SkyWest Airlines and ExpressJet also have cross-termination rights between the two Delta Connection Agreements.

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        Under the terms of the SkyWest Airlines Delta Connection Agreement, Delta has agreed to compensate SkyWest Airlines for the direct costs associated with operating the Delta Connection flights, plus a payment based on block hours flown. Under the terms of the ExpressJet Delta Connection Agreement, Delta has agreed to compensate ExpressJet for its direct costs associated with operating the Delta Connection flights, plus, if ExpressJet completes a certain minimum percentage of its Delta Connection flights, an additional percentage of such costs. Additionally, ExpressJet's Delta Connection Agreement provides for the payment of incentive compensation upon satisfaction of certain performance goals. The incentives are defined in the ExpressJet Delta Connection Agreement as being measured and determined on a monthly and quarterly basis. At the end of each quarter, the Company calculates the incentives achieved during the quarter and recognizes revenue accordingly. The parties to the Delta Connection Agreements made customary representations, warranties and covenants, including with respect to various operational, marketing and administrative matters.

        In the event that the contractual rates under the Delta Connection Agreements have not been finalized at quarterly or annual financial statement dates, the Company records revenues based on the lower of prior period's approved rates, as adjusted to reflect any contract negotiations and the Company's estimate of rates that will be implemented in accordance with revenue recognition guidelines.

        The Delta Connection Agreements also provide that, beginning with the fifth anniversary of the execution of the agreements (September 8, 2010), Delta has the right to require that certain contractual rates under those agreements shall not exceed the second lowest of all carriers within the Delta Connection program. During the fourth quarter of 2010, SkyWest Airlines and Atlantic Southeast reached an agreement with Delta on contractual rates satisfying the 2010 rate reset provision and the second-lowest rate provision and agreed to rates through December 31, 2015. Delta additionally waived its right to require that the contractual rates payable under the Delta Connection Agreements shall not exceed the second-lowest rates of all carriers within the Delta Connection program through December 31, 2015.

        During 2012, the Company reached an agreement with Delta to add 34 additional used dual-class Bombardier regional jet aircraft that were previously operated by other regional carriers for Delta in exchange for the early termination of 66 Bombardier CRJ200 regional jet aircraft ("CRJ200s") under the SkyWest Airlines and ExpressJet Delta Connection Agreements. The Company anticipates the 34 additional dual-class aircraft will be subleased from Delta for a nominal amount. The 34 additional dual-class aircraft consist of 29 Bombardier CRJ900 regional jet aircraft ("CRJ900s") and five CRJ700s. As of December 31, 2012, the Company had taken delivery of 15 CRJ900s and five CRJ700s. The Company anticipates that the remaining dual-class aircraft to be provided by Delta will be delivered by June 2013. The Company anticipates that all 66 CRJ200 aircraft will be removed from the Delta Connection Agreements by December 31, 2015. Of the 66 CRJ200s to be removed from service, 41 CRJ200s are subleased from Delta for a nominal amount, which are scheduled to be returned to Delta without obligation to the Company.

        In the event the Company has a reimbursement dispute with a major partner, the Company evaluates the dispute under its established revenue recognition criteria and, provided the revenue recognition criteria have been met, the Company recognizes revenue based on management's estimate of the resolution of the dispute. During the quarter ended December 31, 2007, Delta notified the

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Company, SkyWest Airlines and Atlantic Southeast of a dispute under the Delta Connection Agreements executed by Delta with SkyWest Airlines and Atlantic Southeast. The dispute relates to allocation of liability for certain irregular operations ("IROP") expenses that are paid by SkyWest Airlines and ExpressJet to their passengers under certain situations. As a result, Delta withheld a combined total of approximately $25 million (pre-tax) from one of the weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast during December 2007. Delta continues to withhold a portion of the funds the Company believes are payable as weekly scheduled wire payments to SkyWest Airlines and ExpressJet (See Note 6 for additional details).

United Express Agreements

        SkyWest Airlines and United have entered into a United Express Agreement, which sets forth the principal terms and conditions governing SkyWest Airlines' United Express operations. Under the terms of the United Express Agreement, SkyWest Airlines is compensated primarily on a fee-per-completed-block hour and departure basis and is reimbursed for fuel and other costs. Additionally, SkyWest Airlines is eligible for incentive compensation upon the achievement of certain performance criteria. The incentives are defined in the United Express Agreement as being measured and determined on a monthly basis. At the end of each month, the Company calculates the incentives achieved during the month and recognizes revenue accordingly.

        On February 10, 2010, Atlantic Southeast and United entered into a United Express Agreement, pursuant to which ExpressJet, as successor to Atlantic Southeast, operates 14 Bombardier CRJ200s as a United Express carrier. The ExpressJet United Express Agreement is a capacity purchase agreement with a five-year term, and other terms which are generally consistent with the SkyWest Airlines United Express Agreement.

        On December 1, 2009, ExpressJet Delaware and United also entered into a United Express Agreement, which sets forth the principal terms and conditions governing the United Express operations presently conducted by ExpressJet. Under the terms of that United Express Agreement, to which ExpressJet became a party through the ExpressJet Combination, ExpressJet is compensated primarily on a fee-per-completed-block hour and departure basis and is reimbursed for fuel and other costs. Additionally, ExpressJet is eligible for incentive compensation upon the achievement of certain performance criteria. The incentives are defined in the ExpressJet United Express Agreement as being measured and determined on a monthly basis. At the end of each month, the Company calculates the incentives achieved during the month and recognizes revenue accordingly.

United Capacity Purchase Agreement

        Effective November 12, 2010, ExpressJet Delaware entered into a Capacity Purchase Agreement with Continental Airlines, Inc., to which United became a party pursuant to its merger with Continental Airlines, Inc. in 2010 (the "United CPA"). Pursuant to the United CPA, whereby ExpressJet Delaware agreed to provide regional airline service in the United flight system. Under the terms of the United CPA, to which ExpressJet succeeded as a party through the ExpressJet Combination, ExpressJet operates 227 aircraft in the United flight system and United has agreed to compensate ExpressJet on a monthly basis based on the block hours flown by ExpressJet and the weighted average number of aircraft operated by ExpressJet under the United CPA. Additionally, ExpressJet may earn incentive

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compensation for good operating performance, but is subject to financial penalties for poor operating performance. At the end of each month, the Company calculates the incentives achieved during the month under the United CPA and recognizes revenue accordingly.

Alaska Capacity Purchase Agreement

        SkyWest Airlines and Alaska have entered into a Capacity Purchase Agreement, which sets forth the principal terms and conditions governing SkyWest Airlines' operations for Alaska. Under the terms of the Alaska Capacity Purchase Agreement, SkyWest Airlines is compensated primarily on a fee-per-completed-block hour and departure basis and is reimbursed for fuel and other costs. Additionally, SkyWest Airlines is eligible for incentive compensation upon the achievement of certain performance criteria. The incentives are defined in the Alaska Capacity Purchase Agreement as being measured and determined on a monthly basis. At the end of each month, the Company calculates the incentives achieved during the month and recognizes revenue accordingly.

US Airways Express Agreement

        SkyWest Airlines and US Airways have entered into a US Airways Express Agreement, which sets forth the principal terms and conditions governing SkyWest Airlines' US Airways Express operations. Under the terms of the US Airways Express Agreement, SkyWest Airlines is compensated primarily on a fee-per-completed-block hour and departure basis and is reimbursed for fuel and other costs. Additionally, SkyWest Airlines is eligible to receive incentive compensation upon the achievement of certain performance criteria, but is subject to financial penalties if it fails to achieve minimum performance criteria. The incentives are defined in the US Airways Express Agreement as being measured and determined on a quarterly basis. At the end of each quarter, the Company calculates the incentives achieved during the quarter and recognizes revenue accordingly.

American Agreement

        In September 2012, SkyWest Airlines and ExpressJet each entered into a Capacity Purchase Agreement with American (the "American Agreements"), which set forth the terms and conditions governing SkyWest Airlines' and ExpressJet's prospective American Eagle operations. SkyWest Airlines placed 12 CRJ200s into service for American on November 14, 2012 and ExpressJet placed 11 CRJ200s into service for American on February 14, 2013. The aircraft flown under the American Agreement have been removed from flying contracts SkyWest Airlines and ExpressJet had with another major partner. The term of each agreement is four years. The American Agreements provide for SkyWest Airlines and ExpressJet to be compensated primarily on a fee-per-completed-block hour and departure basis and will be reimbursed for fuel and other costs. The American Agreements also provide for SkyWest Airlines and ExpressJet to receive incentive compensation upon the achievement of certain performance criteria, but also impose financial penalties if SkyWest Airlines or ExpressJet fails to achieve minimum performance criteria. The incentives are defined in the American Agreements as being measured and determined on a quarterly basis. The Company anticipates that at the end of each quarter, it will calculate the incentives achieved during the quarter from the American Agreements and recognize revenue accordingly.

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Other Revenue Items

        The Company's passenger and ground handling revenues could be impacted by a number of factors, including changes to the Company's code-share agreements with Delta, United, Alaska, American or US Airways, contract modifications resulting from contract re-negotiations, the Company's ability to earn incentive payments contemplated under the Company's code-share agreements and settlement of reimbursement disputes with the Company's major partners.

        Under the Company's code-share agreements with Delta, United, Alaska, US Airways and American, the compensation structure generally consists of a combination of agreed-upon rates for operating flights and direct reimbursement for other certain costs associated with operating the aircraft. A portion of the Company's contract flying compensation is designed to reimburse the Company for certain aircraft ownership costs. The Company has concluded that a component of its revenue under these agreements is rental income, inasmuch as the agreements identify the "right of use" of a specific type and number of aircraft over a stated period of time. The amounts deemed to be rental income under the agreements for the years ended December 31, 2012, 2011 and 2010 were $506.7 million, $521.3 million and $492.7 million, respectively. These amounts were recorded as passenger revenue on the Company's consolidated statements of operations. The Company has not separately stated aircraft rental income and aircraft rental expense in the consolidated statement of comprehensive income (loss)since the use of the aircraft is not a separate activity of the total service provided and there is not a separate profitability measurement for the deemed rental activity of the aircraft.

Deferred Aircraft Credits

        The Company accounts for incentives provided by aircraft manufacturers as deferred credits. The deferred credits related to leased aircraft are amortized on a straight-line basis as a reduction to rent expense over the lease term. Credits related to owned aircraft reduce the purchase price of the aircraft, which has the effect of amortizing the credits on a straight-line basis as a reduction in depreciation expense over the life of the related aircraft. The incentives are credits that may be used to purchase spare parts and pay for training and other expenses.

Income Taxes

        The Company recognizes a liability or asset for the deferred tax consequences of all temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements that will result in taxable or deductible amounts in future years when the reported amounts of the assets and liabilities are recovered or settled.

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Net Income (Loss) Per Common Share

        Basic net income (loss) per common share ("Basic EPS") excludes dilution and is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share ("Diluted EPS") reflects the potential dilution that could occur if stock options or other contracts to issue common stock were exercised or converted into common stock. The computation of Diluted EPS does not assume exercise or conversion of securities that would have an anti-dilutive effect on net income (loss) per common share. During the years ended December 31, 2012, 2011 and 2010, 3,889,000, 4,323,000 and 4,183,000 shares reserved for issuance upon the exercise of outstanding options were excluded from the computation of Diluted EPS respectively, as their inclusion would be anti-dilutive.

        The calculation of the weighted average number of common shares outstanding for Basic EPS and Diluted EPS are as follows for the years ended December 31, 2012, 2011and 2010 (in thousands):

 
   Year Ended December 31,  
 
   2012   2011   2010  

Numerator:

                    

Net Income (Loss)

   $ 51,157   $ (27,335 ) $ 96,350  

Denominator:

                    

Denominator for basic earnings per-share weighted average shares

     51,090     52,201     55,610  

Dilution due to stock options and restricted stock

     656     —     916  
               

Denominator for diluted earnings per-share weighted average shares

     51,746     52,201     56,526  

Basic earnings (loss) per-share

   $ 1.00   $ (0.52 ) $ 1.73  

Diluted earnings (loss) per-share

   $ 0.99   $ (0.52 ) $ 1.70  

Comprehensive Income (Loss)

        Comprehensive income (loss) includes charges and credits to stockholders' equity that are not the result of transactions with the Company's shareholders. Also, comprehensive income (loss) consisted of net income (loss) plus changes in unrealized appreciation (depreciation) on marketable securities and unrealized gain (loss) on foreign currency translation adjustment related to the Company's equity investment in Trip Linhas Aereas, a regional airline operating in Brazil ("Trip") and Mekong Aviation

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(1) Nature of Operations and Summary of Significant Accounting Policies (Continued)

Joint Stock Company, an airline operating in Vietnam ("Air Mekong") (see note 8), net of tax, for the periods indicated (in thousands):

 
   Year Ended December 31,  
 
   2012   2011   2010  

Net Income (Loss)

     51,157   $ (27,335 ) $ 96,350  

Proportionate share of other companies foreign currency translation adjustment, net of tax

     (251 )   (295 )   637  

Unrealized appreciation (depreciation) on marketable securities, net of tax

     316     534     (745 )
               

Comprehensive income (loss)

   $ 51,222   $ (27,096 ) $ 96,242  
               

Fair Value of Financial Instruments

        The carrying amounts reported in the consolidated balance sheets for receivables and accounts payable approximate fair values because of the immediate or short-term maturity of these financial instruments. Marketable securities are reported at fair value based on market quoted prices in the consolidated balance sheets. However, due to recent events in credit markets, the auction events for some of these instruments held by the Company failed during the year ended December 31, 2012. Therefore, quoted prices in active markets are no longer available and the Company has estimated the fair values of these securities utilizing a discounted cash flow analysis as of December 31, 2012. These analyses consider, among other items, the collateralization underlying the security investments, the creditworthiness of the counterparty, the timing of expected future cash flows, and the expectation of the next time the security is expected to have a successful auction. The fair value of the Company's long-term debt is estimated based on current rates offered to the Company for similar debt and approximates $1,744.2 million as of December 31, 2012, as compared to the carrying amount of $1,642.0 million as of December 31, 2012. The Company's fair value of long-term debt as of December 31, 2011 was $1,952.5 million as compared to the carrying amount of $1,815.4 million as of December 31, 2011.

Segment Reporting

        Generally accepted accounting principles require disclosures related to components of a company for which separate financial information is available to, and regularly evaluated by, the Company's chief operating decision maker when deciding how to allocate resources and in assessing performance. The Company's two operating segments consist of the operations conducted by its two subsidiaries, SkyWest Airlines and ExpressJet. Information pertaining to the Company's reportable segments is presented in Note 2, Segment Reporting.

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(2) Segment Reporting

        Generally accepted accounting principles require disclosures related to components of a company for which separate financial information is available to, and regularly evaluated by, the Company's chief operating decision maker ("CODM") when deciding how to allocate resources and in assessing performance.

        The Company's two operating segments consist of the operations conducted by its two subsidiaries, SkyWest Airlines and ExpressJet. On December 31, 2011, ExpressJet Delaware and Atlantic Southeast merged through the ExpressJet Combination. As a result of the ExpressJet Combination, ExpressJet became a reportable segment. Prior year amounts have been revised to conform to the current year segment presentation. The results of operation of ExpressJet Delaware and Atlantic Southeast for periods prior to the ExpressJet Combination are combined under the ExpressJet segment. Corporate overhead expense incurred by the Company is allocated to the operating expenses of its two operating subsidiaries.

        The following represents the Company's segment data for the years ended December 31, 2012, 2011 and 2010 (in thousands).

 
   Year ended December 31,2012  
 
   SkyWest Airlines   ExpressJet   Other   Consolidated  

Operating revenues

     1,930,149     1,593,527     10,696     3,534,372  

Operating expense

     1,774,876     1,588,400     5,109     3,368,385  

Depreciation and amortization expense

     153,915     98,043     —     251,958  

Interest expense

     49,208     23,582     4,590     77,380  

Segment profit (loss)(1)

     106,065     (18,455 )   997     88,607  

Identifiable intangible assets, other than goodwill

     —     17,248     —     17,248  

Total assets

     2,633,369     1,621,268     —     4,254,637  

Capital expenditures (including non—cash)

     53,656     20,204     —     73,860  

 

 
   Year ended December 31,2011  
 
   SkyWest Airlines   ExpressJet   Other   Consolidated  

Operating revenues

     2,002,830     1,640,837     11,256     3,654,923  

Operating expense (income)

     1,893,909     1,714,481     5,428     3,613,818  

Depreciation and amortization expense

     147,520     106,662     —     254,182  

Interest expense

     50,907     25,142     4,334     80,383  

Segment profit(1)

     58,014     (98,786 )   1,494     (39,278 )

Identifiable intangible assets, other than goodwill

     —     19,497     —     19,497  

Total assets

     2,595,901     1,686,007     —     4,281,908  

Capital expenditures (including non—cash)

     166,998     32,758     —     199,756  

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(2) Segment Reporting (Continued)


 
   Year ended December 31,2010  
 
   SkyWest Airlines   ExpressJet   Other   Consolidated  

Operating revenues

     1,904,472     855,095     5,578     2,765,145  

Operating expense (income)

     1,759,784     804,110     (575 )   2,563,319  

Depreciation and amortization expense

     144,002     92,497     —     236,499  

Interest expense

     53,622     27,933     4,962     86,517  

Segment profit(1)

     91,066     23,052     1,191     115,309  

Identifiable intangible assets, other than goodwill

     —     21,747     —     21,747  

Total assets

     2,587,371     1,859,138     —     4,446,509  

Capital expenditures (including non—cash)

     158,787     22,290     —     181,077  
(1)
Segment profit is operating income less interest expense

(3) Long-term Debt

        Long-term debt consisted of the following as of December 31, 2012 and 2011 (in thousands):

 
   December 31,
2012 		  December 31,
2011 		 

Notes payable to banks, due in semi-annual installments, variable interest based on LIBOR, or with interest rates ranging from 1.34% to 2.55% through 2013 to 2020, secured by aircraft

   $ 273,515   $ 364,741  

Notes payable to a financing company, due in semi-annual installments, variable interest based on LIBOR, or with interest rates ranging from 0.70% to 2.36% through 2013 to 2021, secured by aircraft

     434,716     477,241  

Notes payable to banks, due in semi-annual installments plus interest at 6.06% to 7.18% through 2021, secured by aircraft

     168,937     193,197  

Notes payable to a financing company, due in semi-annual installments plus interest at 5.78% to 6.23% through 2019, secured by aircraft

     39,548     53,803  

Notes payable to banks, due in monthly installments plus interest of 3.15% to 8.18% through 2025, secured by aircraft

     665,867     706,463  

Notes payable to banks, due in semi-annual installments, plus interest at 6.05% through 2020, secured by aircraft

     17,872     19,946  

Notes payable to a bank, due in monthly installments interest based on LIBOR plus interest at 2.00% to 4.00% through 2016, secured by aircraft

     41,567     —  
           

Long-term debt

     1,642,022     1,815,391  
           

Less current maturities

     (171,454 )   (208,398 )
           

Long-term debt, net of current maturities

     1,470,568     1,606,993  
           

        As of December 31, 2012, the Company had $1.6 billion of long-term debt obligations related to the acquisition of CRJ200, CRJ700 and CRJ900 aircraft. The average effective interest rate on the debt related to the CRJ aircraft was approximately 4.5% at December 31, 2012.

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(3) Long-term Debt (Continued)

        The aggregate amounts of principal maturities of long-term debt as of December 31, 2012 were as follows (in thousands):

2013

   $ 171,454  

2014

     177,390  

2015

     184,510  

2016

     188,240  

2017

     161,735  

Thereafter

     758,693  
       

  $ 1,642,022  
       

        As of December 31, 2012 and 2011, SkyWest Airlines had a $25 million line of credit. As of December 31, 2012 and 2011, SkyWest Airlines had no amount outstanding under the facility. The facility expires on March 31, 2013 and has a fixed interest rate of 4.0%.

        As of December 31, 2012, the Company had $75.1 million in letters of credit and surety bonds outstanding with various banks and surety institutions.

        As of December 31, 2012, the Company was in compliance with all debt covenants.

(4) Note Receivable

        On October 16, 2009, SkyWest Airlines agreed to defer certain amounts otherwise payable to SkyWest Airlines under the existing United Express Agreement for a maximum period of 30 days. The maximum deferral amount is $49 million and any amounts deferred accrue a deferral fee of 8%, payable weekly. As of December 31, 2012 and 2011, $49 million was deferred for 30 days. United's right to defer such payments continues through October 16, 2019, subject to certain conditions. As of December 31, 2012, the Company had classified $49.0 million as current and has identified the deferred amount as "Receivables, net" in its consolidated balance sheet.

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(5) Income Taxes

        The provision for income taxes includes the following components (in thousands):

 
   Year ended December 31,  
 
   2012   2011   2010  

Current tax provision (benefit):

                    

Federal

   $ —   $ —   $ (1,600 )

State

     441     396     451  
               

    441     396     (1,149 )
               

Deferred tax provision (benefit):

                    

Federal

     31,791     (21,533 )   46,994  

State

     2,507     (1,698 )   3,706  
               

    34,298     (23,231 )   50,700  
               

Provision (benefit) for income taxes

     34,739     (22,835 )   49,551  
               

        The following is a reconciliation between the statutory Federal income tax rate of 35% and the effective rate which is derived by dividing the provision (benefit) for income taxes by income (loss) before for income taxes (in thousands):

 
   Year ended December 31,  
 
   2012   2011   2010  

Computed "expected" provision (benefit) for income taxes at the statutory rates

   $ 32,983   $ (14,683 ) $ 52,888  

Increase (decrease) in income taxes resulting from:

                    

Purchase accounting (gain) adjustment

     —     1,999     (5,455 )

State income tax provision (benefit), net of Federal income tax benefit

     2,220     (1,810 )   3,485  

Valuation allowance changes affecting the provision for income taxes

     1,614     —     —  

Other, net

     (2,078 )   (8,341 )   (1,367 )
               

Provision (benefit) for income taxes

     34,739     (22,835 )   49,551  
               

        For the year ended December 31, 2012, the Company recorded a $1.6 million valuation allowance against certain deferred tax assets associated with capital losses with a limited carryforward period. The Company anticipates the carryforward period will lapse prior to utilization of the deferred tax assets.

        For the year ended December 31, 2011 in conjunction with preparing the 2010 income tax return, the Company revised its estimate of the 2010 ExpressJet post-acquisition tax losses recorded as a deferred tax asset as of December 31, 2010. The change in estimate resulted in a tax benefit of $7.2 million, which is reflected in "Other, net" in the reconciliation above.

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DECEMBER 31, 2011

(5) Income Taxes (Continued)

        The significant components of the net deferred tax assets and liabilities are as follows (in thousands):

 
   As of December 31,  
 
   2012   2011  

Deferred tax assets:

              

Intangible Asset

   $ 37,031   $ 37,404  

Accrued benefits

     40,469     35,460  

Net operating loss carryforward

     118,448     128,134  

AMT credit carryforward

     15,882     15,882  

Deferred aircraft credits

     48,124     49,867  

Accrued reserves and other

     31,846     24,538  
           

Total deferred tax assets

     291,800     291,285  
           

Valuation allowance

     (1,614 )   —  
           

Deferred tax liabilities:

              

Accelerated depreciation

     (823,487 )   (789,641 )
           

Total deferred tax liabilities

     (823,487 )   (789,641 )
           

Net deferred tax liability

     (533,301   $ (498,356 )
           

        The Company's deferred tax liabilities were primarily generated through an accelerated bonus depreciation on newly purchased aircraft and support equipment in accordance with IRS Section 168(k) in combination with shorter depreciable tax lives.

        The Company's valuation allowance is related to certain deferred tax assets with a limited carry-forward period. The Company does not anticipate utilizing these deferred tax assets prior to the lapse of the carry-forward period.

        At December 31, 2012, the Company had federal net operating losses of approximately $272.0 million and state net operating losses of approximately $736.5 million, which will start to expire in 2026 and 2016, respectively. As of December 31, 2012, the Company also had an alternative minimum tax credit of approximately $15.9 million which does not expire.

        In conjunction with the ExpressJet Merger, the Company acquired non-amortizable intangible tax assets and other tax assets that are not anticipated to provide a tax benefit until 2025 or later due to statutory limitations. Because of the uncertainty associated with the realization of those tax assets, the Company has a full valuation allowance of approximately $73.0 million on such tax assets as of December 31, 2012 and 2011. The Company also has a valuation allowance against deferred tax assets of approximately $1 million for net operating losses in states with short carry-forward periods. The deferred tax assets in the table above are shown net of these valuation allowance.

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DECEMBER 31, 2011

(6) Commitments and Contingencies

Lease Obligations

        The Company leases 568 aircraft, as well as airport facilities, office space, and various other property and equipment under non-cancelable operating leases which are generally on a long-term net rent basis where the Company pays taxes, maintenance, insurance and certain other operating expenses applicable to the leased property. The following table summarizes future minimum rental payments required under operating leases that have initial or remaining non-cancelable lease terms in excess of one year as of December 31, 2012 (in thousands):

Year ending December 31,
   
  

2013

   $ 387,999  

2014

     360,797  

2015

     309,378  

2016

     239,989  

2017

     182,291  

Thereafter

     720,733  
       

  $ 2,201,187  
       

        The majority of the Company's leased aircraft are owned and leased through trusts whose sole purpose is to purchase, finance and lease these aircraft to the Company; therefore, they meet the criteria of a variable interest entity. However, since these are single owner trusts in which the Company does not participate, the Company is not considered at risk for losses and is not considered the primary beneficiary. As a result, based on the current rules, the Company is not required to consolidate any of these trusts or any other entities in applying the accounting guidance. The Company's management believes that the Company's maximum exposure under these leases is the remaining lease payments.

        Total rental expense for non-cancelable aircraft operating leases was approximately $333.6 million, $346.5 million and $311.9 million for the years ended December 31, 2012, 2011 and 2010, respectively. The minimum rental expense for airport station rents was approximately $43.5 million, $42.6 million and $43.5 million for the years ended December 31, 2012, 2011 and 2010, respectively.

        The Company's leveraged lease agreements typically obligate the Company to indemnify the equity/owner participant against liabilities that may arise due to changes in benefits from tax ownership of the respective leased aircraft. The terms of these contracts range up to 17 years. The Company did not accrue any liability relating to the indemnification to the equity/owner participant because of management's assessment that the probability of this occurring is remote.

Self-insurance

        The Company self-insures a portion of its potential losses from claims related to workers' compensation, environmental issues, property damage, medical insurance for employees and general liability. Losses are accrued based on an estimate of the ultimate aggregate liability for claims incurred, using standard industry practices and the Company's actual experience. Actual results could differ from these estimates.

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DECEMBER 31, 2011

(6) Commitments and Contingencies (Continued)

Legal Matters

        The Company is subject to certain legal actions which it considers routine to its business activities. As of December 31, 2012, management believes, after consultation with legal counsel, that the ultimate outcome of such legal matters is not likely to have a material adverse effect on the Company's financial position, liquidity or results of operations. However, the following is a significant outstanding legal matter.

SkyWest Airlines and ExpressJet v. Delta

        During the quarter ended December 31, 2007, Delta notified the Company, SkyWest Airlines and Atlantic Southeast, of a dispute under the Delta Connection Agreements executed by Delta with SkyWest Airlines and Atlantic Southeast. The dispute relates to the allocation of liability for certain IROP expenses paid by SkyWest Airlines and Atlantic Southeast to their passengers and vendors under certain situations. During the period between the execution of the Delta Connection Agreements in September 2005 and December 2007, SkyWest Airlines and Atlantic Southeast passed through to Delta IROP expenses that were paid pursuant to Delta's policies, and Delta accepted and reimbursed those expenses. Delta now claims it is obligated to reimburse only a fraction of those IROP expenses. As a result, Delta withheld a combined total of approximately $25 million (pre-tax) from one of the weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast during December 2007. Since December 2007, Delta has continued to withhold payments from the weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast (now ExpressJet), and has disputed subsequent billings for IROP expenses. On February 1, 2008, SkyWest Airlines and Atlantic Southeast filed a Complaint in the Superior Court for Fulton County, Georgia ("Superior Court") challenging Delta's treatment of the matter and seeking recovery of the payments withheld by Delta and any future withholdings related to this issue. Delta filed an Answer to the SkyWest Airlines and Atlantic Southeast Complaint and a Counterclaim against SkyWest Airlines and Atlantic Southeast on March 24, 2008. Delta's Counterclaim alleged that SkyWest Airlines and Atlantic Southeast breached the Delta Connection Agreements by invoicing Delta for IROP expenses that were paid pursuant to Delta's policies, and claims only a portion of those expenses may be invoiced to Delta. Since July 1, 2008, the Company has not recognized revenue related to IROP expense reimbursements withheld by Delta because collection of those reimbursements is the subject of litigation and is not reasonably assured. As of December 31, 2012, the Company had recognized a cumulative total of $31.7 million of revenue associated with the funds withheld by Delta.

        During 2010, the Company and Delta began preliminary settlement discussions related to the IROP dispute. Notwithstanding the legal merits of the case, the Company offered to settle the claim for approximately $5.9 million less than the cumulative total of revenue recognized related to this matter. Those settlement discussions were not successful; however, as a result of the settlement offer, the Company wrote off $5.9 million of related receivables as of December 31, 2010.

        After proceedings that included contested motions, document discovery, and depositions, Delta voluntarily dismissed its Counterclaim. Discovery in that action was not complete at the time of dismissal. On February 14, 2011, SkyWest Airlines and Atlantic Southeast voluntarily dismissed their claims in the Superior Court, and filed a new complaint (the "State Court Complaint") in the Georgia State Court of Fulton County (the "State Court"). The claims continue to include breach of contract,

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DECEMBER 31, 2011

(6) Commitments and Contingencies (Continued)

breach of contract based on mutual departure, breach of contract based on voluntary payment, and breach of the duty of good faith and fair dealing. Delta moved for partial dismissal of the State Court Complaint, which motion was denied in its entirety. Discovery in the State Court lawsuit is not yet complete.

        On October 18, 2011, Delta filed a counterclaim (the "Counterclaim") against SkyWest Airlines and Atlantic Southeast. The Counterclaim contains claims for unjust enrichment and breach of contract related to alleged non-revenue positive space flying by SkyWest and Atlantic Southeast employees for non-Delta related business. Delta's Counterclaim does not specify an amount of damages, but the Counterclaim alleges, on information and belief, that Delta's damages exceed $4.5 million. SkyWest and Atlantic Southeast filed their reply to the Counterclaim on November 21, 2011, stating the allegations contained in the Counterclaim stand denied by operation of law and asserting SkyWest's and Atlantic Southeast's affirmative defenses. An estimated loss is accrued if the loss is probable and reasonably estimable. Because these conditions have not been satisfied, the Company has not recorded a loss in its consolidated financial statements with respect to the dispute. As of December 31, 2012, a range of reasonably possible loss is not determinable related to this Counterclaim.

        As of December 31, 2012, the Company's estimated range of reasonably possible loss related to the dispute was $0 to $25.8 million. SkyWest Airlines and ExpressJet continue to vigorously pursue their claims set forth in the State Court Complaint and their defenses against Delta's Counterclaim.

Concentration Risk and Significant Customers

        The Company requires no collateral from its major partners or customers but monitors the financial condition of its major partners. The Company maintains an allowance for doubtful accounts receivable based upon expected collectability of all accounts receivable. The Company's allowance for doubtful accounts totaled $94,000 and $240,000 as of December 31, 2012 and 2011, respectively. For the years ended December 31, 2012, 2011 and 2010, the Company's contractual relationships with Delta and United combined accounted for approximately 94.8%, 97.6% and 94.7%, respectively of the Company's total revenues.

Employees Under Collective Bargaining Agreements

        As of December 31, 2012, the Company had 18,145 full-time equivalent employees. Approximately 42% of these employees were represented by unions, including the following employee groups. Notwithstanding the completion of the ExpressJet Combination, ExpressJet's employee groups continue to be represented by those unions who provided representation prior to the ExpressJet Combination.

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DECEMBER 31, 2011

(6) Commitments and Contingencies (Continued)

        Accordingly, the following table refers to ExpressJet's employee groups based upon their union affiliations prior to the ExpressJet Combination.

Employee Group
  Approximate
Number of
Active
Employees
Represented 		  Representatives   Status of Agreement

Atlantic Southeast Pilots

     1,620   Air Line Pilots
Association
International		   Amendable

Atlantic Southeast Flight Attendants

     940   International
Association of
Machinists and
Aerospace Workers		   Amendable

Atlantic Southeast Flight Controllers

     70   Transport Workers
Union of America		   Amendable

Atlantic Southeast Mechanics

     420   International
Brotherhood of
Teamsters		   Amendable

Atlantic Southeast Stock Clerks

     70   International
Brotherhood of
Teamsters		   Amendable

ExpressJet Delaware Pilots

     2,560   Air Line Pilots
Association
International		   Amendable

ExpressJet Delaware Flight Attendants

     1,200   International
Association of
Machinists and
Aerospace Workers		   Amendable

ExpressJet Delaware Mechanics

     670   International
Brotherhood of
Teamsters		   Amendable

ExpressJet Delaware Dispatchers

     80   Transport Workers
Union of America		   Amendable

ExpressJet Delaware Stock Clerks

     75   International
Brotherhood of
Teamsters		   Amendable

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DECEMBER 31, 2011

(7) Fair Value Measurements

        The Company holds certain assets that are required to be measured at fair value in accordance with United States GAAP. The Company determined fair value of these assets based on the following three levels of inputs:

Level 1   —   Quoted prices in active markets for identical assets or liabilities.

Level 2
 
—
 
Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Some of the Company's marketable securities primarily utilize broker quotes in a non-active market for valuation of these securities.

Level 3
 
—
 
Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities, therefore requiring an entity to develop its own assumptions.

        As of December 31, 2012, the Company held certain assets that are required to be measured at fair value on a recurring basis. Assets measured at fair value on a recurring basis are summarized below (in thousands):

 
   Fair Value Measurements as of December 31,
2012 		 
 
   Total   Level 1   Level 2   Level 3  

Marketable Securities

                          

Bonds

   $ 552,289   $ —   $ 552,289   $ —  

Commercial paper

     3,514     —     3,514     —  

Asset backed securities

     314     —     314     —  
                   

    556,117     —     556,117     —  

Cash, Cash Equivalents and Restricted Cash

     153,325     153,325     —     —  

Other Assets(a)

     3,844     —     —     3,844  
                   

Total Assets Measured at Fair Value

   $ 713,286   $ 153,325   $ 556,117   $ 3,844  
                   

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DECEMBER 31, 2011

(7) Fair Value Measurements (Continued)

 

 
   Fair Value Measurements as of December 31,
2011 		 
 
   Total   Level 1   Level 2   Level 3  

Marketable Securities

                          

Bonds

   $ 492,517   $ —   $ 492,517   $ —  

Commercial paper

     4,557     —     4,557     —  

Asset backed securities

     478     —     478     —  
                   

    497,552     —     497,552     —  

Cash, Cash Equivalents and Restricted Cash

     148,960     148,960     —     —  

Other Assets(a)

     3,793     —     —     3,793  
                   

Total Assets Measured at Fair Value

   $ 650,305   $ 148,960   $ 497,552   $ 3,793  
                   
(a)
Auction rate securities included in "Other assets" in the Consolidated Balance Sheet

        Based on market conditions, the Company uses a discounted cash flow valuation methodology for auction rate securities. Accordingly, for purposes of the foregoing consolidated financial statements, these securities were categorized as Level 3 securities. The Company's "Marketable Securities" classified as Level 2 primarily utilize broker quotes in a non-active market for valuation of these securities.

        No significant transfers between Level 1, Level 2 and Level 3 occurred during the year ended December 31, 2012. The Company's policy regarding the recording of transfers between levels is to record any such transfers at the end of the reporting period.

        The following table presents the Company's assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) at December 31, 2012 (in thousands):

Fair Value Measurements Using Significant Unobservable Inputs

(Level 3)

 
   Auction Rate
Securities 		 

Balance at January 1, 2012

   $ 3,793  

Total realized and unrealized gains or (losses)

        

Included in earnings

     —  

Included in other comprehensive income

     51  

Transferred out

     —  

Settlements

     —  
       

Balance at December 31, 2012

   $ 3,844  
       

(8) Investment in Other Companies

        In September 2008, the Company entered into an agreement to acquire a 20% interest in TRIP. As of December 31, 2012, the Company's investment balance in TRIP was $19.1 million.

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DECEMBER 31, 2011

(8) Investment in Other Companies (Continued)

        On July 12, 2012, the Company sold its interest in TRIP for a price of $42 million. The purchase price is scheduled to be paid in three installments over a two-year period and may be accelerated upon the occurrence of certain conditions identified in the purchase agreement. As part of the sale transaction, the Company also received an option to acquire 15.38% of the ownership in Trip Investimentos Ltda., the purchaser of the Company's TRIP shares ("Trip Investimentos"). The Company has also recorded the fair value of the option. The option has an initial exercise price per share equal to the price paid by Trip Investimentos to acquire the TRIP shares from the Company. The exercise price escalates annually at a specified rate and the Company can exercise the option, at its discretion, between the second and fourth anniversaries of the Company's receipt of the final required installment payments from Trip Investimentos. Under the terms of the agreement, Trip Investimentos cannot transfer the TRIP shares until the three installment payments have been made. The restriction on Trip Investimentos' ability to transfer the TRIP shares prevents the transaction from being recognized as a sale. As a result, the Company will account for the transaction as a sale once all three installment payments have been made. The Company has no continuing involvement with the TRIP shares. As of December 31, 2012, the Company had received the first installment payment of $8.1 million. This payment was recorded as an "Other Long-Term Liability" on the Company's consolidated balance sheet. The second installment payment is due July 12, 2013, for an amount of $16.8 million. The third installment payment is due July 12, 2014 for an amount of $16.8 million. The future installment payments and the option to purchase 15.38% of Trip Investimentos represent variable interests in TRIP Investimentos, which is a variable interest entity. The Company has no equity interest and no control over Trip Investimentos, and therefore the Company does not consolidate Trip Investimentos.

        On September 29, 2010, the Company invested $7 million for a 30% ownership interest in Air Mekong. During 2011, the Company invested an additional $3 million in Air Mekong. As of December 31, 2012, the Company's investment balance in Air Mekong was $1.7 million.

        The Company's investments in TRIP and Air Mekong have been recorded as "Other Assets" on the Company's consolidated balance sheet. The Company's ownership interest in Air Mekong decreased to 17% as a result of additional financing received by Air Mekong. As a result, for purposes of generally accepted accounting principles, the Company no longer has significant influence over the operations of Air Mekong. Beginning October 1, 2012, the Company ceased to account for its investment in Air Mekong under the equity method and, subsequent to that date, has accounted for its investment in Air Mekong under the cost method. The Company's portion of the losses incurred by TRIP and Air Mekong for the year ended December 31, 2012 and 2011 was $10.2 million (pre-tax), and $13.3 million (pre-tax), respectively. In connection with the sale of its investment in TRIP on July 12, 2012, the Company relinquished its board seat and voting rights and for purposes of generally accepted accounting principles, no longer has significant influence over the operations of TRIP. As a result, the Company ceased to account for its investment in TRIP under the equity method beginning on July 12, 2012 and, subsequent to that date, has accounted for its investment in TRIP under the cost method.

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DECEMBER 31, 2011

(9) Capital Transactions

Preferred Stock

        The Company is authorized to issue 5,000,000 shares of preferred stock in one or more series without shareholder approval. No shares of preferred stock are presently outstanding. The Company's Board of Directors is authorized, without any further action by the shareholders of the Company, to (i) divide the preferred stock into series; (ii) designate each such series; (iii) fix and determine dividend rights; (iv) determine the price, terms and conditions on which shares of preferred stock may be redeemed; (v) determine the amount payable to holders of preferred stock in the event of voluntary or involuntary liquidation; (vi) determine any sinking fund provisions; and (vii) establish any conversion privileges.

Stock Compensation

        On May 4, 2010, the Company's shareholders approved the adoption of the SkyWest Inc. 2010 Long-Term Incentive Plan, which provides for the issuance of up to 5,150,000 shares of common stock to the Company's directors, employees, consultants and advisors (the "2010 Incentive Plan"). The 2010 Incentive Plan provides for awards in the form of options to acquire shares of common stock, stock appreciation rights, restricted stock grants and performance awards. The 2010 Incentive Plan is administered by the Compensation Committee of the Company's Board of Directors (the "Compensation Committee") who is authorized to designate option grants as either incentive or non-statutory. Incentive stock options are granted at not less than 100% of the market value of the underlying common stock on the date of grant. Non-statutory stock options are granted at a price as determined by the Compensation Committee.

        In prior years, the Company adopted three stock option plans: the Executive Stock Incentive Plan (the "Executive Plan"), the 2001 Allshare Stock Option Plan (the "Allshare Plan") and SkyWest Inc. Long-Term Incentive Plan (the "2006 Incentive Plan"). However, as of December 31, 2012, options to purchase 3,031,825 shares of the Company's common stock remained outstanding under the Executive Plan, the Allshare Plan and the 2006 Incentive Plan. There are no additional shares of common stock available for issuance under these plans.

        The fair value of stock options awarded under the Company's stock option plans has been estimated as of the grant date using the Black-Scholes option pricing model. The Company uses historical data to estimate option exercises and employee termination in the option pricing model. The expected term of options granted is derived from the output of the option pricing model and represents the period of time that options granted are expected to be outstanding. The expected volatilities are based on the historical volatility of the Company's traded stock and other factors. During the year ended December 31, 2012, the Company granted 200,115 stock options to employees under the 2010

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(9) Capital Transactions (Continued)

Incentive Plan. The following table shows the assumptions used and weighted average fair value for grants in the years ended December 31, 2012, 2011 and 2010.

 
   2012   2011   2010  

Expected annual dividend rate

     1.23 %   1.04 %   1.10 %

Risk-free interest rate

     0.81 %   2.08 %   1.88 %

Average expected life (years)

     5.6     5.8     4.6  

Expected volatility of common stock

     0.409     0.404     0.402  

Forfeiture rate

     0.0 %   0.0 %   0.0 %

Weighted average fair value of option grants

   $ 4.43   $ 5.74   $ 4.78  

        The Company recorded share-based compensation expense only for those options that are expected to vest. The estimated fair value of the stock options is amortized over the vesting period of the respective stock option grants.

        During the year ended December 31, 2012, the Company granted 290,265 shares of restricted stock to the Company's employees under the 2010 Incentive Plan. The restricted stock has a three-year vesting period, during which the recipient must remain employed with the Company or its subsidiaries. The weighted average fair value of the restricted stock on the date of grants made during the year ended December 31, 2012 was $13.06 per share. Additionally, the Company granted 27,874 fully-vested shares of common stock to the Company's directors with a weighted average grant-date fair value of $13.06. The following table summarizes the restricted stock activity as of December 31, 2012, 2011 and 2010:

 
   Number of
Shares 		  Weighted-Average
Grant-Date
Fair Value 		 

Non-vested shares outstanding at December 31, 2009

     686,586   $ 23.13  

Granted

     248,384     14.49  

Vested

     (256,285 )   25.51  

Cancelled

     (19,422 )   21.68  
           

Non-vested shares outstanding at December 31, 2010

     659,263     18.97  

Granted

     249,502     15.51  

Vested

     (238,848 )   25.80  

Cancelled

     (58,315 )   15.71  
           

Non-vested shares outstanding at December 31, 2011

     611,602     15.08  

Granted

     318,139     13.04  

Vested

     (212,841 )   14.95  

Cancelled

     (18,015 )   14.20  
           

Non-vested shares outstanding at December 31, 2012

     698,885     14.21  

        During the year ended December 31, 2012, 2011 and 2010, the Company recorded equity-based compensation expense of $4.7 million, $5.4 million and $6.4 million, respectively.

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DECEMBER 31, 2011

(9) Capital Transactions (Continued)

        As of December 31, 2012, the Company had $4.9 million of total unrecognized compensation cost related to non-vested stock options and non-vested restricted stock grants. Total unrecognized compensation cost will be adjusted for future changes in estimated forfeitures. The Company expects to recognize this cost over a weighted average period of 1.7 years.

        Options are exercisable for a period as defined by the Compensation Committee on the date granted; however, no stock option will be exercisable before six months have elapsed from the date it is granted and no incentive stock option shall be exercisable after ten years from the date of grant. The following table summarizes the stock option activity for all of the Company's plans for the years ended December 31, 2012, 2011 and 2010:

 
   2012   2011   2010  
 
   Number of
Options 		  Weighted
Average
Exercise
Price 		  Weighted
Average
Remaining
Contractual
Term 		  Aggregate
Intrinsic
Value
($000) 		  Number of
Options 		  Weighted
Average
Exercise
Price 		  Number of
Options 		  Weighted
Average
Exercise
Price 		 

Outstanding at beginning of year

     4,176,673   $ 19.26   2.7 years   $ —     4,586,979   $ 19.96     4,740,695   $ 20.37  

Granted

     200,115     13.06               327,617     15.45     320,458     14.49  

Exercised

     (179,204 )   10.57               (5,941 )   10.57     (4,821 )   10.57  

Cancelled

     (543,725 )   25.35               (731,982 )   24.73     (469,353 )   20.46  
                                           

Outstanding at end of year

     3,653,859     18.44   2.3 years     —     4,176,673     19.26     4,586,979     19.96  
                                           

Exercisable at December 31, 2012

     3,031,825     19.28   1.8 years     —                          

Exercisable at December 31, 2011

     3,310,143     20.35   2.1 years     —                          

        The total intrinsic value of options to acquire shares of the Company's common stock that were exercised during the years ended December 31, 2012, 2011 and 2010 was $191,000, $31,000 and $19,000, respectively.

        The following table summarizes the status of the Company's non-vested stock options as of December 31, 2012:

 
   Number of
Shares 		  Weighted-Average
Grant-Date
Fair Value 		 

Non-vested shares at beginning of year

     866,530   $ 4.82  

Granted

     200,115     4.43  

Vested

     (444,611 )   4.42  

Cancelled

     —     —  
           

Non-vested shares at end of year

     622,034   $ 4.99  

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DECEMBER 31, 2011

(9) Capital Transactions (Continued)

        The following table summarizes information about the Company's stock options outstanding at December 31, 2012:

 
   Options Outstanding   Options Exercisable  
Range of Exercise Prices
  Number
Outstanding 		  Weighted Average
Remaining
Contractual Life 		  Weighted Average
Exercise Price 		  Number
Exercisable 		  Weighted Average
Exercise Price 		 

$10 to $15

     1,167,959   3.9 years   $ 14.38     545,925   $ 14.42  

$16 to $21

     1,649,742   1.8 years     17.71     1,649,742     17.71  

$22 to $28

     836,158   1.3 years     25.56     836,158     25.56  
                           

$10 to $28

     3,653,859   2.3 years     18.44     3,031,825     19.28  

Taxes

        A portion of the Company's granted options qualify as incentive stock options ("ISOs") for income tax purposes. As such, a tax benefit is not recorded at the time the compensation cost related to the options is recorded for book purposes due to the fact that an ISO does not ordinarily result in a tax benefit unless there is a disqualifying disposition. Stock option grants of non-qualified options result in the creation of a deferred tax asset, which is a temporary difference, until the time that the option is exercised. Due to the treatment of incentive stock options for tax purposes, the Company's effective tax rate from year to year is subject to variability.

(10) Retirement Plans and Employee Stock Purchase Plans

SkyWest Retirement Plan

        The Company sponsors the SkyWest, Inc. Employees' Retirement Plan (the "SkyWest Plan"). Employees who have completed 90 days of service and are at least 18 years of age are eligible for participation in the SkyWest Plan. Employees may elect to make contributions to the SkyWest Plan. The Company matches 100% of such contributions up to 2%, 4% or 6% of the individual participant's compensation, based upon length of service. Additionally, a discretionary contribution may be made by the Company. The Company's combined contributions to the SkyWest Plan were $16.0 million, $14.4 million and $13.3 million for the years ended December 31, 2012, 2011 and 2010, respectively.

ExpressJet and Atlantic Southeast Retirement Plan

        ExpressJet (formerly Atlantic Southeast) sponsors the Atlantic Southeast Airlines, Inc. Investment Savings Plan (the "Atlantic Southeast Plan"). Employees who have completed 90 days of service and are 18 years of age are eligible for participation in the Atlantic Southeast Plan. Employees may elect to make contributions to the Atlantic; however, ExpressJet limits the amount of company match at 6% of each participant's total compensation, except for those with ten or more years of service whose company match is limited to 8% of total compensation. Additionally, ExpressJet matches the individual participant's contributions from 20% to 75%, depending on the length of the participant's service. Additionally, participants are 100% vested in their elective deferrals and rollover amounts and from 10% to 100% vested in company matching contributions based on length of service.

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

DECEMBER 31, 2011

(10) Retirement Plans and Employee Stock Purchase Plans (Continued)

        Effective December 31, 2002, ExpressJet Delaware adopted the ExpressJet Airlines, Inc. 401(k) Savings Plan (the "ExpressJet Retirement Plan"). Substantially all of ExpressJet Delaware's domestic employees were covered by this plan at the time of the ExpressJet Combination. Effective January 1, 2009, the ExpressJet Retirement Plan was amended such that certain matches have been reduced or eliminated depending on the terms of the collective bargaining unit or work group, as applicable.

        ExpressJet's contribution to the Atlantic Southeast and the ExpressJet Retirement Plans was $26.4 million, $25.1 million and $5.8 million for the years ended December 31, 2012, 2011 and 2010, respectively.

        ExpressJet Delaware also provided medical bridge coverage for employees between the ages of 60 to 65, with at least ten years of service who have retired from the Company. In December 2007, the Fair Treatment for Experienced Pilots Act (H.R. 4343) was enacted. This law increased the mandatory retirement age of commercial pilots from 60 to 65. As a result of this legislation, ExpressJet is no longer required to provide medical bridge coverage to its pilots between the ages of 60 to 65. In 2008, ExpressJet Delaware's practice of providing medical bridge coverage for non-pilot employees was frozen, and does not permit non-pilot employees retiring on or after January 1, 2009 to participate in such coverage.

Employee Stock Purchase Plans

        In May 2009, the Company's Board of Directors approved the SkyWest, Inc. 2009 Employee Stock Purchase Plan (the "2009 Stock Purchase Plan"). All employees who have completed 90 days of employment with the Company or one of its subsidiaries are eligible to participate, except employees who own five percent or more of the Company's common stock. The 2009 Stock Purchase Plan enables employees to purchase shares of the Company's common stock at a 5% discount, through payroll deductions. Employees can contribute up to 15% of their base pay, not to exceed $21,250 each calendar year, for the purchase of shares. Shares are purchased semi-annually at a 5% discount based on the end of the period price. Employees can terminate their participation in the 2009 Stock Purchase Plan at anytime upon written notice.

        The following table summarizes purchases made under the 2009 Employee Stock Purchase Plans during the years ended December 31, 2012, 2011 and 2010:

 
   Year Ended December 31,  
 
   2012   2011   2010  

Number of shares purchased

     487,451     300,177     356,777  

Average price of shares purchased

   $ 8.35   $ 14.56   $ 13.52  

        The 2009 Stock Purchase Plan is a non-compensatory plan under the accounting guidance. Therefore, no compensation expense was recorded for the years ended December 31, 2012, 2011 and 2010.

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

DECEMBER 31, 2011

(11) Stock Repurchase

        The Company's Board of Directors has authorized the repurchase of up to 25,000,000 shares of the Company's common stock in the public market. During the years ended December 31, 2012 and 2011, the Company repurchased 0.1 million and 4.1 million shares of common stock for approximately $0.9 million and $60.7 million, respectively at a weighted average price per share of $15.32 and $14.62, respectively. Effective September 14, 2012, the Company's Board of Directors adopted the SkyWest, Inc. 2012 Stock Repurchase Plan (the "Stock Repurchase Plan"), which provides for the repurchase of up to 6,514,266 shares of common stock, from time to time in open market or privately negotiated transactions, as contemplated by Rule 10b5-1 promulgated under the Exchange Act, as amended. The Stock Repurchase Plan expires on October 15, 2014.

(12) Related-Party Transactions

        The Company's President, Chairman of the Board and Chief Executive Officer, serves on the Board of Directors of Zions Bancorporation ("Zions"). The Company maintains a line of credit (see Note 3) and certain bank accounts with Zions. Zions is an equity participant in leveraged leases on three CRJ200, two CRJ700 and five Brasilia turboprop aircraft operated by the Company's subsidiaries. Zions also refinanced six CRJ200 and two CRJ700 aircraft in 2012 for terms of three to four years, becoming the debtor on these aircraft. Zions also serves as the Company's transfer agent. The Company's cash balance in the accounts held at Zions as of December 31, 2012 and 2011 was $56.4 million and $51.8 million, respectively.

(13) Quarterly Financial Data (Unaudited)

        Unaudited summarized financial data by quarter for 2012 and 2011 is as follows (in thousands, except per share data):

 
   Year Ended December 31, 2012  
 
   First
Quarter 		  Second
Quarter 		  Third
Quarter 		  Fourth
Quarter 		  Year  

Operating revenues

   $ 921,173   $ 937,214   $ 865,259   $ 810,726   $ 3,534,372  

Operating income

     20,457     46,806     54,974     43,750     165,987  

Net income (loss)

     (682 )   16,960     20,933     13,946     51,157  

Net income (loss) per common share:

                                

Basic

     (0.01 )   0.33     0.41     0.27     1.00  

Diluted

     (0.01 )   0.33     0.40     0.27     0.99  

Weighted average common shares:

                                

Basic:

     50,881     50,944     51,241     51,296     51,090  

Diluted:

     50,881     51,789     52,153     52,161     51,746  

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

DECEMBER 31, 2011

(13) Quarterly Financial Data (Unaudited) (Continued)

 

 
   Year Ended December 31, 2011  
 
   First
Quarter 		  Second
Quarter 		  Third
Quarter 		  Fourth
Quarter 		  Year  

Operating revenues

   $ 865,951   $ 933,697   $ 955,425   $ 899,850   $ 3,654,923  

Operating income

     227     19,040     26,827     (4,989 )   41,105  

Net income (loss)

     (11,063 )   1,579     116     (17,967 )   (27,335 )

Net income (loss) per common share:

                                

Basic

     (0.21 )   0.03     0.00     (0.35 )   (0.52 )

Diluted

     (0.21 )   0.03     0.00     (0.35 )   (0.52 )

Weighted average common shares:

                                

Basic:

     53,844     52,698     51,570     50,691     52,201  

Diluted:

     53,844     53,371     52,315     50,691     52,201  

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ITEM 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

        None.

ITEM 9A.    CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

        Our management, including our Chief Executive Officer and Chief Accounting Officer, performed an evaluation of our disclosure controls and procedures, which have been designed to ensure that information we are required to disclose in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Commission rules and forms. Our Chief Accounting Officer performs functions that are substantially similar to the functions of a chief financial officer with respect to the oversight of our disclosure controls and procedures. Our management, including our Chief Executive Officer and Chief Accounting Officer, concluded that, as of December 31, 2012, those controls and procedures were effective to ensure that information we are required to disclose in the reports we file or submit under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Accounting Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control

        During the three months ended December 31, 2012, we did not make any changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Management's Annual Report on Internal Control Over Financial Reporting

        Management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rules13a-15(f) and 15d-15(f) under the Exchange Act. Our internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America.

        Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies may deteriorate.

        Management conducted an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2012 using the criteria issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control—Integrated Framework. Based on that evaluation, management believes that our internal control over financial reporting was effective as of December 31, 2012.

        The effectiveness of our internal control over financial reporting as of December 31, 2012, has been audited by Ernst & Young LLP ("Ernst & Young"), the independent registered public accounting firm who also has audited our Consolidated Financial Statements included in this Report. Ernst & Young's report on our internal control over financial reporting appears on the following page.

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Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders
SkyWest, Inc.

        We have audited SkyWest, Inc. and subsidiaries' internal control over financial reporting as of December 31, 2012, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (the COSO criteria). SkyWest, Inc. and subsidiaries' management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management's Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the company's internal control over financial reporting based on our audit.

        We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

        A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

        Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

        In our opinion, SkyWest, Inc. and subsidiaries maintained, in all material respects, effective internal control over financial reporting as of December 31, 2012, based on the COSO criteria.

        We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of SkyWest, Inc. and subsidiaries as of December 31, 2012 and 2011, and the related consolidated statements of comprehensive income (loss), stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2012 of SkyWest, Inc. and subsidiaries and our report dated February 15, 2013 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Salt Lake City, Utah
February 15, 2013

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ITEM 9B.    OTHER INFORMATION

        None.


PART III

        Items 10, 11, 12, 13 and 14 in Part III of this Report are incorporated herein by reference to our definitive proxy statement for our 2013 Annual Meeting of Shareholders scheduled for May 7, 2013. We intend to file our definitive proxy statement with the SEC not later than 120 days after December 31, 2012, pursuant to Regulation 14A of the Exchange Act.

 
    
   Headings in Proxy Statement
ITEM 10.   DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE   "Election of Directors," "Executive Officers," "Corporate Governance," "Meetings and Committees of the Board" and "Section 16(a) Beneficial Reporting Compliance"

ITEM 11.
 
EXECUTIVE COMPENSATION
 
"Corporate Governance," "Meetings and Committees of the Board," "Compensation Discussion and Analysis," "Compensation Committee Report," "Executive Compensation," "Director Compensation" and "Director Summary Compensation Table"

ITEM 12.
 
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
 
"Security Ownership of Certain Beneficial Owners"

ITEM 13.
 
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
"Certain Relationships and Related Transactions"

ITEM 14.
 
PRINCIPAL ACCOUNTANT FEES AND SERVICES
 
"Audit and Finance Committee Disclosure" and "Fees Paid to Independent Registered Public Accounting Firm"


PART IV

ITEM 15.    EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a)
Documents Filed:

1.
Financial Statements: Reports of Independent Auditors, Consolidated Balance Sheets as of December 31, 2012 and 2011, Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2012, 2011 and 2010, Consolidated Statements of Cash Flows for the year ended December 31, 2012, 2011 and 2010, Consolidated Statements of Stockholders' Equityfor the years ended December 31, 2012, 2011 and 2010 and Notes to Consolidated Financial Statements.

2.
Financial Statement Schedule. The following consolidated financial statement schedule of our company is included in this Item 15.

•
Report of independent auditors on financial statement schedule

•
Schedule II—Valuation and qualifying accounts

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(b)
Exhibits

Number   Exhibit   Incorporated
by Reference 		 
  3.1   Restated Articles of Incorporation       (1)
                
  3.2   Amended and Restated Bylaws       (14)
                
  4.1   Specimen of Common Stock Certificate       (2)
                
  10.1   Amended and Restated Delta Connection Agreement, dated as of September 8, 2005, between SkyWest Airlines, Inc. and Delta Air Lines, Inc.       (3)
                
  10.2   Second Amended and Restated Delta Connection Agreement, dated as of September 8, 2005, between Atlantic Southeast Airlines, Inc. and Delta Air Lines, Inc.       (3)
                
  10.3   United Express Agreement dated September 9, 2003, between United Air Lines, Inc., and SkyWest Airlines, Inc.       (4)
                
  10.4   Stock Option Agreement dated January 28, 1987 between Delta Air Lines, Inc. and SkyWest, Inc.       (5)
                
  10.5   Lease Agreement dated December 1,1989 between Salt Lake City Corporation and SkyWest Airlines, Inc.       (6)
                
  10.6(a ) Master Purchase Agreement between Bombardier and SkyWest Airlines, Inc.       (7)
                
  10.6(b ) Supplement to Master Purchase Agreement between Bombardier, and SkyWest Airlines, Inc.       (4)
                
  10.7   SkyWest, Inc. Amended and Combined Incentive and Non-Statutory Stock Option Plan       (8)
                
  10.8   SkyWest Inc. 2007 Employee Stock Purchase Plan       (9)
                
  10.8(a ) First Amendment to SkyWest, Inc. 2007 Employee Stock Purchase Plan       (11)
                
  10.9   SkyWest Inc. Executive Stock Incentive Plan       (10)
                
  10.10   SkyWest Inc. Allshare Stock Option Plan       (10)
                
  10.12   SkyWest, Inc. 2002 Deferred Compensation Plan, as amended and restated effective January 1, 2010       (11)
                
  10.12(a ) First Amendment to the Restated SkyWest, Inc. 2002 Deferred Compensation Plan       (11)
                
  10.13   SkyWest, Inc. 2007 Long-Term Incentive Plan       (11)
                
  10.13(a ) First Amendment to the SkyWest, Inc. 2007 Long-Term Incentive Plan       (11)
                
  10.13(b ) Second Amendment to the SkyWest, Inc. 2007 Long-Term Incentive Plan       (11)
 
           

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Number   Exhibit   Incorporated
by Reference 		 
  10.14   SkyWest, Inc. 2009 Employee Stock Purchase Plan       (11)
                
  10.15   Capacity Purchase Agreement, dated November 12, 2010, by and among ExpressJet Airlines, Inc. and Continental Airlines, Inc.       (12)
                
  10.16   Aircraft Purchase Agreement between Mitsubishi Aircraft Corporation and SkyWest Inc.       (13)
                
  21.1   Subsidiaries of the Registrant       (14)
                
  23.1   Consent of Independent Registered Public Accounting Firm     Filed herewith  
                
  31.1   Certification of Chief Executive Officer     Filed herewith  
                
  31.2   Certification of Chief Financial Officer     Filed herewith  
                
  32.1   Certification of Chief Executive Officer     Filed herewith  
                
  32.2   Certification of Chief Financial Officer     Filed herewith  
                
  101.INS ** XBRL Instance Document        
                
  101.SCH ** XBRL Taxonomy Extension Schema Document        
                
  101.CAL ** XBRL Taxonomy Extension Calculation Linkbase
Document		        
                
  101.LAB ** XBRL Taxonomy Extension Label Linkbase
Document		        
                
  101.PRE ** XBRL Taxonomy Extension Presentation Linkbase
Document		        
                
  101.DEF ** XBRL Taxonomy Extension Definition Linkbase
Document		        
**
Attached as Exhibit 101 to this report are the following documents formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statement of Comprehensive Income (Loss) for the years ended December 31, 2012, December 31, 2011 and December 31, 2010, (ii) the Consolidated Balance Sheet at December 31, 2012 and December 31, 2011, and (iii) the Consolidated Statement of Cash Flows for the years ended December 31, 2012, December 31, 2011 and December 31, 2010

(1)
Incorporated by reference to the exhibits to a Registration Statement on Form S-3, File No. 333-129832

(2)
Incorporated by reference to a Registration Statement on Form S-3, File No. 333-42508

(3)
Incorporated by reference to Registrant's Form 8-K/A filed on February 12, 2007

(4)
Incorporated by reference to exhibits to Registrant's Form 10-Q filed on December 31, 2003

(5)
Incorporated by reference to the exhibits to Registrant's Forms 8-K filed on January 21, 1998 and February 11, 1998

(6)
Incorporated by reference to the exhibits to Registrant's Form 10-Q filed for the quarter ended December 31, 1986

(7)
Incorporated by reference to the exhibits to Registrant's Form 10-Q filed on February 13, 2003

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(8)
Incorporated by reference to the exhibits to a Registration Statement on Form S-8, Filed No. 33-41285

(9)
Incorporated by reference to the exhibits to a Registration Statement on Form S-8, File No, 333-130848

(10)
Incorporated by reference to the exhibits to Registrant's Form 10-Q filed on July 28, 2000

(11)
Incorporated by reference to the exhibits to Registrant's Form 10-K filed on February 25, 2010

(12)
Incorporated by reference to the exhibits to Registrant's Form 8-K filed on November 18, 2010, as amended

(13)
Incorporated by reference to the exhibits to Registrant's Form 8-K filed on December 13, 2012, as amended

(14)
Incorporated by reference to the exhibits to Registrant's Form 10-K filed on February 24, 2012

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Report of Independent Registered Public Accounting Firm

        We have audited the consolidated financial statements of SkyWest, Inc. and subsidiaries (the "Company") as of December 31, 2012 and 2011, and for each of the three years in the period ended December 31, 2012, and have issued our report thereon dated February 15, 2013 (included elsewhere in this Form 10-K). Our audits also included the financial statement schedule listed in Item 15(a) of this Form 10-K. This schedule is the responsibility of the Company's management. Our responsibility is to express an opinion based on our audits.

        In our opinion, the financial statement schedule referred to above, when considered in relation to the basic financial statements taken as a whole, presents fairly in all material respects the information set forth therein.

/s/ Ernst & Young LLP

Salt Lake City, Utah
February 15, 2013

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SKYWEST, INC. AND SUBSIDIARIES

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

For the Years Ended December 31, 2012, 2011 and 2010

(Dollars in thousands)

Description
  Balance at
Beginning
of Year 		  Additions
Charged to
Costs and
Expenses 		  Deductions   Balance at
End of Year 		 

Year Ended December 31, 2012:

                          

Allowance for inventory obsolescence

   $ 8,248     941     —   $ 9,189  

Allowance for doubtful accounts receivable

     240     —     (146 )   94  
                   

    8,488     941     (146 )   9,283  
                   

Year Ended December 31, 2011:

                          

Allowance for inventory obsolescence

   $ 7,541   $ 707     —   $ 8,248  

Allowance for doubtful accounts receivable

     47     193     —     240  
                   

    7,588     900     —     8,488  
                   

Year Ended December 31, 2010:

                          

Allowance for inventory obsolescence

   $ 6,615   $ 926     —   $ 7,541  

Allowance for doubtful accounts receivable

     47     5,892     (5,892 )   47  
                   

  $ 6,662     6,818     (5,892 )   7,588  
                   

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SIGNATURES

        Pursuant to the requirements of Section 13 or 15 (d) of the Securities Act of 1934, as amended, the Registrant has duly caused this Annual Report on Form 10-K for the year ended December 31, 2012, to be signed on its behalf by the undersigned, thereunto duly authorized, on February 15, 2013.

    SKYWEST, INC.

 
 
By:
 
/s/ ERIC J. WOODWARD
 Eric J. Woodward
 Chief Accounting Officer (Principal
Accounting Officer)


ADDITIONAL SIGNATURES

        Pursuant to the requirement of the Securities Act of 1934, as amended, this Annual Report on Form 10-K has been signed below by the following persons in the capacities and on the dates indicated.

Name
 
Capacities
 
Date

 
 
 
 
 
/s/ JERRY C. ATKIN
 Jerry C. Atkin		   Chairman of the Board and Chief Executive Officer (Principal Executive Officer)   February 15, 2013

/s/ MICHAEL J. KRAUPP
 Michael J. Kraupp
 
Chief Financial Officer and Treasurer (Principal Financial Officer)
 
February 15, 2013

/s/ ERIC J. WOODWARD
 Eric J. Woodward
 
Chief Accounting Officer (Principal Accounting Officer)
 
February 15, 2013

/s/ STEVEN F. UDVAR-HAZY
 Steven F. Udvar-Hazy
 
Lead Director
 
February 15, 2013

/s/ W. STEVE ALBRECHT
 Steve Albrecht
 
Director
 
February 15, 2013

/s/ J. RALPH ATKIN
 J. Ralph Atkin
 
Director
 
February 15, 2013

/s/ IAN M. CUMMING
 Ian M. Cumming
 
Director
 
February 15, 2013

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Name
 
Capacities
 
Date

 
 
 
 
 
/s/ ROBERT G. SARVER
 Robert G. Sarver		   Director   February 15, 2013

/s/ MARGARET S. BILLSON
 Margaret S. Billson
 
Director
 
February 15, 2013

/s/ HENRY J. EYRING
 Henry J. Eyring
 
Director
 
February 15, 2013

/s/ JAMES L. WELCH
 James L. Welch
 
Director
 
February 15, 2013

111