Southwest Airlines Carry-On Rules
US LCC. 22×14×9 in carry-on + personal item free. 2 checked bags free. Very lenient.
Carry-on allowance
- Cabin bag size
- 56×36×23 cm
- Cabin bag weight
- No limit
- Bags allowed
- 1
- Personal item
- 43×33×18 cm
22×14×9 in. No weight limit. One carry-on per passenger.
Cabin Bag Details
| Dimensions | 56×36×23 cm(22×14.2×9.1 in) |
|---|---|
| Weight limit | No weight limit stated |
| Bags allowed | 1 cabin bag |
| Includes wheels/handles | Yes |
| Personal item | 43×33×18 cm max |
| Note | 22×14×9 in. No weight limit. One carry-on per passenger. |
Liquids Policy
TSA 3-1-1: containers ≤ 3.4 oz (100 ml) in 1 quart (1L) clear zip-lock bag. One per passenger.
Family & Infants
Infant (under 2)
Lap child free on all flights. No baggage for infant on lap.
Stroller
Strollers gate-checked free. Can be collected at gate on arrival.
Car seat
Rear-facing or forward-facing seats free in cabin (if seat purchased) or hold.
Children's allowance
Children 2+ same as adults.
Enforcement
Lenient
Usually does not check bag size at the gate. Most passengers board without issues.
Southwest almost never enforces carry-on size limits. 2 checked bags free for all passengers is unique in the US.
Frequently asked questions
What is the Southwest Airlines cabin bag size?
Southwest Airlines allows a cabin bag up to 56×36×23 cm (22×14.2×9.1 in). Dimensions include wheels and handles.
Does Southwest Airlines have a weight limit for carry-on?
Southwest Airlines does not publish a cabin bag weight limit, but staff may use discretion.
Does Southwest Airlines allow a personal item?
Yes. Southwest Airlines allows a personal item up to 43×33×18 cm. It must fit under the seat in front of you.
How strict is Southwest Airlines about bag size?
Southwest Airlines has lenient enforcement. Usually does not check bag size at the gate. Most passengers board without issues. Southwest almost never enforces carry-on size limits. 2 checked bags free for all passengers is unique in the US.
Rules can change. Always verify with your airline before flying.