Southwest Airlines allows a carry-on bag up to 24x16x10 in (61x41x25 cm), including handles and wheels. No carry-on weight limit is published.
| Bag | Maximum size | Maximum weight | Notes |
|---|---|---|---|
| Carry-on | 24x16x10 in61x41x25 cm | No stated limit | Wheels, handles, and attachments count toward the 24x16x10 in dimensions; Southwest does not publish a carry-on weight limit or restrict carry-on size by fare class. |
| Checked bag | 62 in157.5 cm | 50 lb22.7 kg |
| Fee | Amount |
|---|---|
| First checked bag | $45 (mainland U.S. Basic/Choice/Choice Preferred fares) |
| Second checked bag | $55 (mainland U.S. Basic/Choice/Choice Preferred fares) |
| Overweight bag | $100 + standard bag fee for 51-70 lb; $200 + standard bag fee for 71-100 lb |
| Oversize bag | $200 + standard bag fee for bags measuring 63-80 total linear inches |
Carry-on and personal item size limits are the same across all fares; checked-bag fees depend on fare/status — Business Select fares, A-List Preferred elites, and Rapid Rewards Priority Cardholders get free checked bags while other fares pay standard per-bag fees (Southwest ended free checked bags for everyone in May 2025).
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