    <SEC-DOCUMENT>0000092380-24-000108-index.html : 20240725
    <SEC-HEADER>0000092380-24-000108.hdr.sgml : 20240725
    <ACCEPTANCE-DATETIME>20240725063023
    ACCESSION NUMBER:		0000092380-24-000108
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		23
    CONFORMED PERIOD OF REPORT:	20240725
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20240725
    DATE AS OF CHANGE:		20240725

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SOUTHWEST AIRLINES CO
    		CENTRAL INDEX KEY:			0000092380
    		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				741563240
    		STATE OF INCORPORATION:			TX
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-07259
    		FILM NUMBER:		241139678

    	BUSINESS ADDRESS:
    		STREET 1:		2702 LOVE FIELD DR
    		STREET 2:		P O BOX 36611
    		CITY:			DALLAS
    		STATE:			TX
    		ZIP:			75235
    		BUSINESS PHONE:		2147924000

    	MAIL ADDRESS:
    		STREET 1:		PO BOX 36611
    		CITY:			DALLAS
    		STATE:			TX
    		ZIP:			75235-1611

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	AIR SOUTHWEST CO
    		DATE OF NAME CHANGE:	19760108
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>luv-20240725.htm
    <DESCRIPTION>FORM 8-K 2ND QUARTER 2024 EARNINGS RELEASE
    <TEXT>
    Document 1 - file: luv-20240725.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>er-6302024xerdoc.htm
    <DESCRIPTION>EXHIBIT 99.1 2ND QUARTER 2024 FINANCIAL RESULTS
    <TEXT>
    Document 2 - file: er-6302024xerdoc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>initiativespressrelease_.htm
    <DESCRIPTION>EXHIBIT 99.2 REGISTRANT'S INITIATIVES PRESS RELEASE
    <TEXT>
    Document 3 - file: initiativespressrelease_.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>4
    <FILENAME>luv-20240725.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 4 - file: luv-20240725.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>5
    <FILENAME>luv-20240725_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: luv-20240725_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>6
    <FILENAME>luv-20240725_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: luv-20240725_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>7
    <FILENAME>luv-20240725_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 7 - file: luv-20240725_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>initiativespressrelease_001.jpg
    <TEXT>
    Document 8 - file: initiativespressrelease_001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>initiativespressrelease_002.jpg
    <TEXT>
    Document 9 - file: initiativespressrelease_002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>initiativespressrelease_003.jpg
    <TEXT>
    Document 10 - file: initiativespressrelease_003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>initiativespressrelease_004.jpg
    <TEXT>
    Document 11 - file: initiativespressrelease_004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>initiativespressrelease_005.jpg
    <TEXT>
    Document 12 - file: initiativespressrelease_005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>initiativespressrelease_006.jpg
    <TEXT>
    Document 13 - file: initiativespressrelease_006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>luv-20240725_g1.jpg
    <TEXT>
    Document 14 - file: luv-20240725_g1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>16
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>17
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 17 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>18
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 18 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>19
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 19 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>21
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 21 - file: FilingSummary.html

    Document 21 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>23
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 23 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>24
    <FILENAME>0000092380-24-000108-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 24 - file: 0000092380-24-000108-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>25
    <FILENAME>luv-20240725_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 25 - file: luv-20240725_htm.html

    Document 25 - RAW XML: luv-20240725_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>