Southwest Airlines cabin bag size
Everything you can bring on board Southwest Airlines — sizes, weight and cost.
Southwest Airlines cabin baggage explained
Southwest includes one carry-on and one personal item. Its 24 × 16 × 10 in carry-on box is larger than the 22 × 14 × 9 in standard used by several other large US carriers.
What your fare changes
All fares include the overhead carry-on up to about 61 × 41 × 25 cm plus one item that fits under the seat. Boarding position can affect locker availability, but it does not change the published maximum carry-on size.
What to check before you fly
Southwest’s current policy describes the personal item by where it must fit rather than relying only on a universal numeric box. Aircraft under-seat space varies, so use a flexible personal item and do not pack it to a rigid maximum.
Full baggage allowance
| Allowance | Max size | Weight | Fare | Cost |
|---|---|---|---|---|
Cabin bag / carry-on ≈ 24 × 16 × 10 in — one of the most generous carry-on limits in the US. | 61 × 41 × 25 cm 24 × 16.1 × 9.8 in | — | All fares | Free |
Southwest currently publishes no fixed dimensions for a personal item; it must fit under the seat. The checker therefore evaluates only the airline’s published carry-on box.
Report an outdated limitWorked bag-size example
Take a larger US cabin case measuring 60 × 40 × 24 cm. Compare it with the cabin-bag limit of 61 × 41 × 25 cm.
The smallest dimensional margin is 1 cm, so the bag is within the size limit.
We compare the three outside edges after orientation, including protruding parts. A result with less than 0.5 cm of clearance is marked tight because measuring and packing can change the real size.
Southwest Airlines baggage FAQ
What size cabin bag can I take on Southwest Airlines?+
Southwest Airlines's cabin bag limit is 61 × 41 × 25 cm (24 × 16.1 × 9.8 in). Measure your bag including wheels and handles.
How do I check if my bag fits Southwest Airlines?+
Measure height, width and depth in cm or inches and enter them into the checker — you'll see instantly whether your bag fits Southwest Airlines for free, is tight, or is over the limit, with the exact margin.
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