Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000092380-18-000073-index-headers.html | 2018-05-01 13:14:58 | |
| 0000092380-18-000073-index.html | 2018-05-01 13:14:58 | |
| 0000092380-18-000073.txt | 2018-05-01 13:14:58 | |
 0000092380-18-000073-xbrl.zip | 277180 | 2018-05-01 13:14:58 |
 boeinga07.jpg | 10758 | 2018-05-01 13:14:58 |
| FilingSummary.xml | 32986 | 2018-05-01 13:14:58 |
| Financial_Report.xlsx | 86267 | 2018-05-01 13:14:58 |
| luv-20180331.xml | 2471794 | 2018-05-01 13:14:58 |
| luv-20180331.xsd | 72739 | 2018-05-01 13:14:58 |
| luv-20180331_cal.xml | 87900 | 2018-05-01 13:14:58 |
| luv-20180331_def.xml | 402252 | 2018-05-01 13:14:58 |
| luv-20180331_lab.xml | 802453 | 2018-05-01 13:14:58 |
| luv-20180331_pre.xml | 527390 | 2018-05-01 13:14:58 |
| luv-3312018x10q.htm | 1600317 | 2018-05-01 13:14:58 |
| luv-3312018xex101.htm | 409540 | 2018-05-01 13:14:58 |
| luv-3312018xex102.htm | 762582 | 2018-05-01 13:14:58 |
| luv-3312018xex103.htm | 1279718 | 2018-05-01 13:14:58 |
| luv-3312018xex311.htm | 10652 | 2018-05-01 13:14:58 |
| luv-3312018xex312.htm | 10483 | 2018-05-01 13:14:58 |
| luv-3312018xex321.htm | 9861 | 2018-05-01 13:14:58 |
| R1.htm | 20516 | 2018-05-01 13:14:58 |
| R10.htm | 55466 | 2018-05-01 13:14:58 |
| R11.htm | 198340 | 2018-05-01 13:14:58 |
| R12.htm | 62423 | 2018-05-01 13:14:58 |
| R13.htm | 5890 | 2018-05-01 13:14:58 |
| R14.htm | 180430 | 2018-05-01 13:14:58 |
| R15.htm | 78541 | 2018-05-01 13:14:58 |
| R16.htm | 341484 | 2018-05-01 13:14:58 |
| R17.htm | 76645 | 2018-05-01 13:14:58 |
| R18.htm | 41009 | 2018-05-01 13:14:58 |
| R19.htm | 24106 | 2018-05-01 13:14:58 |
| R2.htm | 85173 | 2018-05-01 13:14:58 |
| R20.htm | 39721 | 2018-05-01 13:14:58 |
| R21.htm | 197007 | 2018-05-01 13:14:58 |
| R22.htm | 65577 | 2018-05-01 13:14:58 |
| R23.htm | 4259 | 2018-05-01 13:14:58 |
| R24.htm | 25888 | 2018-05-01 13:14:58 |
| R25.htm | 74682 | 2018-05-01 13:14:58 |
| R26.htm | 17172 | 2018-05-01 13:14:58 |
| R27.htm | 13561 | 2018-05-01 13:14:58 |
| R28.htm | 35868 | 2018-05-01 13:14:58 |
| R29.htm | 12298 | 2018-05-01 13:14:58 |
| R3.htm | 64204 | 2018-05-01 13:14:58 |
| R30.htm | 17703 | 2018-05-01 13:14:58 |
| R31.htm | 17701 | 2018-05-01 13:14:58 |
| R32.htm | 23377 | 2018-05-01 13:14:58 |
| R33.htm | 26890 | 2018-05-01 13:14:58 |
| R34.htm | 22847 | 2018-05-01 13:14:58 |
| R35.htm | 107003 | 2018-05-01 13:14:58 |
| R36.htm | 25928 | 2018-05-01 13:14:58 |
| R37.htm | 41889 | 2018-05-01 13:14:58 |
| R38.htm | 25015 | 2018-05-01 13:14:58 |
| R39.htm | 10789 | 2018-05-01 13:14:58 |
| R4.htm | 76783 | 2018-05-01 13:14:58 |
| R40.htm | 7831 | 2018-05-01 13:14:58 |
| R41.htm | 14083 | 2018-05-01 13:14:58 |
| R42.htm | 6806 | 2018-05-01 13:14:58 |
| R43.htm | 22224 | 2018-05-01 13:14:58 |
| R44.htm | 11253 | 2018-05-01 13:14:58 |
| R45.htm | 16585 | 2018-05-01 13:14:58 |
| R46.htm | 43531 | 2018-05-01 13:14:58 |
| R47.htm | 95843 | 2018-05-01 13:14:58 |
| R48.htm | 14860 | 2018-05-01 13:14:58 |
| R49.htm | 22521 | 2018-05-01 13:14:58 |
| R5.htm | 10718 | 2018-05-01 13:14:58 |
| R50.htm | 54775 | 2018-05-01 13:14:58 |
| R51.htm | 14807 | 2018-05-01 13:14:58 |
| R52.htm | 17670 | 2018-05-01 13:14:58 |
| R53.htm | 28234 | 2018-05-01 13:14:58 |
| R54.htm | 19993 | 2018-05-01 13:14:58 |
| R6.htm | 341324 | 2018-05-01 13:14:58 |
| R7.htm | 73044 | 2018-05-01 13:14:58 |
| R8.htm | 59593 | 2018-05-01 13:14:58 |
| R9.htm | 23995 | 2018-05-01 13:14:58 |
| report.css | 2767 | 2018-05-01 13:14:58 |
| Show.js | 1410 | 2018-05-01 13:14:58 |
 southwestheartimagea01.jpg | 64544 | 2018-05-01 13:14:58 |