    <SEC-DOCUMENT>0000766421-24-000075-index.html : 20241015
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    <ACCEPTANCE-DATETIME>20241015090121
    ACCESSION NUMBER:		0000766421-24-000075
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		15
    CONFORMED PERIOD OF REPORT:	20241015
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Completion of Acquisition or Disposition of Assets
    ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20241015
    DATE AS OF CHANGE:		20241015

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ALASKA AIR GROUP, INC.
    		CENTRAL INDEX KEY:			0000766421
    		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				911292054
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-08957
    		FILM NUMBER:		241369583

    	BUSINESS ADDRESS:
    		STREET 1:		19300 INTERNATIONAL BOULEVARD
    		CITY:			SEATTLE
    		STATE:			WA
    		ZIP:			98188
    		BUSINESS PHONE:		206-392-5040

    	MAIL ADDRESS:
    		STREET 1:		19300 INTERNATIONAL BOULEVARD
    		CITY:			SEATTLE
    		STATE:			WA
    		ZIP:			98188

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	ALASKA AIR GROUP INC
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>alk-20241015.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: alk-20241015.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.1
    <SEQUENCE>2
    <FILENAME>ex41-alaskaloyaltyxindentu.htm
    <DESCRIPTION>EX-4.1
    <TEXT>
    Document 2 - file: ex41-alaskaloyaltyxindentu.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.4
    <SEQUENCE>3
    <FILENAME>ex44-alaskaloyaltyxcredita.htm
    <DESCRIPTION>EX-4.4
    <TEXT>
    Document 3 - file: ex44-alaskaloyaltyxcredita.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>4
    <FILENAME>alk-20241015.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 4 - file: alk-20241015.xsd

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    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>5
    <FILENAME>alk-20241015_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: alk-20241015_lab.xml

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    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>6
    <FILENAME>alk-20241015_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: alk-20241015_pre.xml

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    <TYPE>XML
    <SEQUENCE>8
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 8 - file: R1.htm

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    <TYPE>EXCEL
    <SEQUENCE>9
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 9 - file: Financial_Report.xlsx

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    <SEQUENCE>10
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    <TEXT>
    Document 10 - file: Show.js

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>11
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 11 - file: report.css

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>13
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 13 - file: FilingSummary.html

    Document 13 - RAW XML: FilingSummary.xml

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    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>15
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 15 - file: MetaLinks.json

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    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>16
    <FILENAME>0000766421-24-000075-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: 0000766421-24-000075-xbrl.zip

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    <SEQUENCE>17
    <FILENAME>alk-20241015_htm.xml
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    <TEXT>
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    Document 17 - RAW XML: alk-20241015_htm.xml

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