Southwest Carry-On Rules: Size, Personal Item & Baggage
Quick answer: Southwest allows one carry-on bag and one smaller personal item. The carry-on maximum is 24 x 16 x 10 inches, including wheels, handles, and attachments. The personal item must fit under a seat or in the overhead compartment.
Last reviewed: July 22, 2026. Confirm Southwest’s official carry-on and personal-item policy.
Southwest carry-on allowance
| Bag | Rule |
|---|---|
| Carry-on bag | One, up to 24 x 16 x 10 in including wheels, handles, and attachments. |
| Personal item | One smaller item, such as a purse, briefcase, laptop case, backpack, or small camera, that can be stowed properly. |
Southwest’s carry-on allowance is larger than the common 22 x 14 x 9 U.S. limit. That does not make a 24-inch bag universally airline-ready, so travelers who use multiple carriers may prefer a more flexible 22 x 14 x 9 carry-on.
Southwest checked bags and fees
Checked-bag policy changes, fare benefits, and route details should always be verified at booking. Southwest’s published standard checked-bag size limit is 62 linear inches and the standard weight limit is 50 pounds. See Southwest’s current checked-baggage policy for your fare and itinerary.
Pack smarter for Southwest
- Measure the outside of the full bag including wheels and handle.
- Use a personal item bag for essentials you want at your seat.
- Do not choose a bag only because it fits Southwest; confirm the dimensions if your return flight is on another carrier.
Southwest FAQ
Can I bring a backpack and carry-on on Southwest?
Yes, when the backpack works as the smaller personal item and both pieces can be safely stored.
Is a 24-inch suitcase always carry-on size?
No. Southwest’s maximum is more generous than many airlines. A 24-inch suitcase can exceed the limit on carriers that use 22 x 14 x 9.
Next step: explore carry-on luggage or return to the Airline Rules Center.