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        <link:definition>2101100 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="CommonStockRepurchase" roleURI="http://www.alaskaair.com/role/CommonStockRepurchase">
        <link:definition>2113100 - Disclosure - COMMON STOCK REPURCHASE</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheets" roleURI="http://www.alaskaair.com/role/ConsolidatedBalanceSheets">
        <link:definition>1001000 - Statement - CONSOLIDATED BALANCE SHEETS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="ConsolidatedStatementsOfCashFlows" roleURI="http://www.alaskaair.com/role/ConsolidatedStatementsOfCashFlows">
        <link:definition>1004000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="ConsolidatedStatementsOfOperations" roleURI="http://www.alaskaair.com/role/ConsolidatedStatementsOfOperations">
        <link:definition>1002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="ConsolidatedStatementsOfShareholdersEquity" roleURI="http://www.alaskaair.com/role/ConsolidatedStatementsOfShareholdersEquity">
        <link:definition>1003000 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="Contingencies" roleURI="http://www.alaskaair.com/role/Contingencies">
        <link:definition>2132100 - Disclosure - CONTINGENCIES</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="DerivativeInstruments" roleURI="http://www.alaskaair.com/role/DerivativeInstruments">
        <link:definition>2107100 - Disclosure - DERIVATIVE INSTRUMENTS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      </link:roleType>
      <link:roleType id="DocumentAndEntityInformation" roleURI="http://www.alaskaair.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - Document - DOCUMENT AND ENTITY INFORMATION</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="EmployeeBenefitPlans" roleURI="http://www.alaskaair.com/role/EmployeeBenefitPlans">
        <link:definition>2116100 - Disclosure - EMPLOYEE BENEFIT PLANS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="FairValueOfFinancialInstruments" roleURI="http://www.alaskaair.com/role/FairValueOfFinancialInstruments">
        <link:definition>2104100 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="FleetTransition" roleURI="http://www.alaskaair.com/role/FleetTransition">
        <link:definition>2128100 - Disclosure - FLEET TRANSITION</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="LongTermDebt" roleURI="http://www.alaskaair.com/role/LongTermDebt">
        <link:definition>2110100 - Disclosure - LONG-TERM DEBT</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType id="MileagePlanLevel1Notes" roleURI="http://www.alaskaair.com/role/MileagePlanLevel1Notes">
        <link:definition>2122100 - Disclosure - MILEAGE PLAN Level 1 (Notes)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType id="OperatingSegmentInformation" roleURI="http://www.alaskaair.com/role/OperatingSegmentInformation">
        <link:definition>2131100 - Disclosure - OPERATING SEGMENT INFORMATION</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      </link:roleType>
      <link:roleType id="OtherAssets" roleURI="http://www.alaskaair.com/role/OtherAssets">
        <link:definition>2119100 - Disclosure - OTHER ASSETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ParentheticalDataToConsolidatedBalanceSheets" roleURI="http://www.alaskaair.com/role/ParentheticalDataToConsolidatedBalanceSheets">
        <link:definition>1001500 - Statement - PARENTHETICAL DATA TO THE CONSOLIDATED BALANCE SHEETS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationPlans" roleURI="http://www.alaskaair.com/role/StockBasedCompensationPlans">
        <link:definition>2125100 - Disclosure - STOCK-BASED COMPENSATION PLANS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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