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<!--Created by EDGARizerX-->
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        <link:definition>001000 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited)</link:definition>
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        <link:definition>001010 - Statement - PARENTHETICAL DATA TO THE CONDENSED CONSOLIDATED BALANCE SHEETS</link:definition>
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        <link:definition>002000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited)</link:definition>
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        <link:definition>003000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (unaudited)</link:definition>
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        <link:definition>004000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited)</link:definition>
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        <link:definition>006010 - Disclosure - BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES</link:definition>
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      <link:roleType roleURI="http://alaskaair.com/role/FairValueOfFinancialInstruments" id="FairValueOfFinancialInstruments">
        <link:definition>006020 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS</link:definition>
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      <link:roleType roleURI="http://alaskaair.com/role/NewPilotContractTransitionCostsAndRestructuringCharges" id="NewPilotContractTransitionCostsAndRestructuringCharges">
        <link:definition>006110 - Disclosure - NEW PILOT CONTRACT TRANSITION COSTS</link:definition>
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      <link:roleType roleURI="http://alaskaair.com/role/FuelHedgeContracts" id="FuelHedgeContracts">
        <link:definition>006030 - Disclosure - DERIVATIVE INSTRUMENTS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://alaskaair.com/role/FleetTransition" id="FleetTransition">
        <link:definition>006100 - Disclosure - FLEET TRANSITION</link:definition>
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      <link:roleType roleURI="http://alaskaair.com/role/LongTermDebt" id="LongTermDebt">
        <link:definition>006040 - Disclosure - LONG-TERM DEBT</link:definition>
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        <link:definition>026070 - Disclosure - SHAREHOLDERS' EQUITY</link:definition>
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      <link:roleType roleURI="http://alaskaair.com/role/EmployeeBenefitPlans" id="EmployeeBenefitPlans">
        <link:definition>006060 - Disclosure - EMPLOYEE BENEFIT PLANS</link:definition>
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        <link:definition>006070 - Disclosure - OTHER ASSETS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://alaskaair.com/role/MileagePlan" id="MileagePlan">
        <link:definition>006080 - Disclosure - MILEAGE PLAN</link:definition>
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        <link:definition>006090 - Disclosure - STOCK-BASED COMPENSATION PLANS</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://alaskaair.com/role/OperatingSegmentInformation" id="OperatingSegmentInformation">
        <link:definition>006120 - Disclosure - OPERATING SEGMENT INFORMATION</link:definition>
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      <link:roleType roleURI="http://alaskaair.com/role/Contingencies" id="Contingencies">
        <link:definition>006130 - Disclosure - CONTINGENCIES</link:definition>
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        <link:definition>003010 - Statement - PARENTHETICAL DATA TO THE CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY</link:definition>
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        <link:definition>006050 - Disclosure - COMMON STOCK REPURCHASE</link:definition>
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