Passenger and Ground Handling Revenue	3 Months Ended
Mar. 31, 2013
Passenger and Ground Handling Revenue
Passenger and Ground Handling Revenue	Note B — Passenger and Ground Handling Revenue *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 Airlines, Inc. (“Delta”), United Air Lines, Inc. (“United”), Continental Airlines, Inc. (“Continental”), US Airways Group, Inc. (“US Airways”), American Airlines, Inc. (“American”) and Alaska Airlines (“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 fifth year thereafter. In addition to its 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. 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 for Delta by other regional carriers 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 Bombardier CRJ700 regional jet aircraft (“CRJ700s”). As of March 31, 2013, the Company had taken delivery of 21 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 service under 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, and 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 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 I 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, to which United became a party pursuant to its merger with Continental in 2010 (the “United CPA”). Pursuant to the United CPA, ExpressJet Delaware agreed to provide regional airline service in the Continental (now United) flight system. Under the terms of the United CPA, to which ExpressJet succeeded as a party through the ExpressJet Combination, ExpressJet operates 229 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 compensation upon achievement of certain operating performance criteria, but is subject to financial penalties if it fails to achieve minimum operating performance criteria. 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 from the US Airways Express Agreement 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 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 Agreements have been removed from flying contracts SkyWest Airlines and ExpressJet had with another major partner. The term of each American 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 to be reimbursed for fuel and other costs. The American Agreements also provide for SkyWest Airlines and ExpressJet to receive incentive compensation upon each airline’s achievement of certain performance criteria, but also impose financial penalties if either airline fails to achieve minimum performance criteria. The incentives are defined in the American Agreements as being measured and determined on a quarterly basis. At the end of each quarter, the Company calculates the incentives achieved during the quarter from the American Agreements and recognizes revenue accordingly. *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 its major partners, 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. Other revenue primarily consists of revenue attributed to ground handling services the Company provides for other airlines.

Note B — Passenger and Ground Handling Revenue

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 Airlines, Inc. (“Delta”), United Air Lines, Inc. (“United”), Continental Airlines, Inc. (“Continental”), US Airways Group, Inc. (“US Airways”), American Airlines, Inc. (“American”) and Alaska Airlines (“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 fifth year thereafter. In addition to its 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.

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 for Delta by other regional carriers 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 Bombardier CRJ700 regional jet aircraft (“CRJ700s”). As of March 31, 2013, the Company had taken delivery of 21 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 service under 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, and 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 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 I 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, to which United became a party pursuant to its merger with Continental in 2010 (the “United CPA”). Pursuant to the United CPA, ExpressJet Delaware agreed to provide regional airline service in the Continental (now United) flight system. Under the terms of the United CPA, to which ExpressJet succeeded as a party through the ExpressJet Combination, ExpressJet operates 229 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 compensation upon achievement of certain operating performance criteria, but is subject to financial penalties if it fails to achieve minimum operating performance criteria. 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 from the US Airways Express Agreement 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 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 Agreements have been removed from flying contracts SkyWest Airlines and ExpressJet had with another major partner. The term of each American 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 to be reimbursed for fuel and other costs. The American Agreements also provide for SkyWest Airlines and ExpressJet to receive incentive compensation upon each airline’s achievement of certain performance criteria, but also impose financial penalties if either airline fails to achieve minimum performance criteria. The incentives are defined in the American Agreements as being measured and determined on a quarterly basis. At the end of each quarter, the Company calculates the incentives achieved during the quarter from the American Agreements and recognizes revenue accordingly.

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 its major partners, 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. Other revenue primarily consists of revenue attributed to ground handling services the Company provides for other airlines.