Reviewed baggage rules
Start with the reviewed outside limit, then keep fare, route, aircraft, and enforcement caveats beside the rule they qualify.
No complete airline-published L × W × D limit
Estimated conservative under-seat placeholder; Southwest does not publish exact personal-item dimensions.
No exact personal-item dimensions in checked source; placeholder is not official.
24 x 16 x 10 in
Wheels handles and attachments count.
Measure carefully before flying.
Selected for personal-item use and source-checked exterior dimensions. Because the airline does not publish a complete L × W × D limit, compare these as practical candidates rather than calculated fits.
11 x 17 x 4.5 in
Designed for personal-item use, with source-checked exterior dimensions.
14 x 11 x 5.5 in
Designed for personal-item use, with source-checked exterior dimensions.
16.5 x 9.8 x 6.1 in
Designed for personal-item use, with source-checked exterior dimensions.
18.1 x 11.2 x 5.1 in
Designed for personal-item use, with source-checked exterior dimensions.
15.8 x 12.2 x 5.5 in
Designed for personal-item use, with source-checked exterior dimensions.
17 x 12.5 x 5 in
Designed for personal-item use, with source-checked exterior dimensions.
Southwest Airlines's reviewed estimated personal-item rule lists 15.7 x 11.8 x 7.9 in. estimated conservative under-seat placeholder; Southwest does not publish exact personal-item dimensions. Source last checked 2026-05-28.
Southwest Airlines's reviewed published carry-on rule lists 24 x 16 x 10 in. wheels handles and attachments count. Source last checked 2026-05-28.
No. This page compares reviewed bag dimensions against reviewed airline rules and does not guarantee gate acceptance. No exact personal-item dimensions in checked source; placeholder is not official.