Southwest Airlines cabin bag size
Everything you can bring on board Southwest Airlines — sizes, weight and cost.
✓ Verified · 9 Jul 2026Official Southwest Airlines policy ↗
Free allowance
61 × 41 × 25 cm
24 × 16.1 × 9.8 in
Free on all fares
Check your bag against Southwest Airlines →Full baggage allowance
| Allowance | Max size | Weight | Fare | Cost |
|---|---|---|---|---|
Personal item / under-seat ≈ 16.25 × 13.5 × 8 in. Fits under the seat. | 41 × 34 × 20 cm 16.1 × 13.4 × 7.9 in | — | All fares | Free |
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 |
Bags that fit Southwest Airlines free
See all →Amazon Basics
21" Hardside Spinner
56 × 36 × 23 cm
40 L
2.9 kg
2 cm to spare
from $70
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.
Does Southwest Airlines include a free personal item?+
Yes — Southwest Airlines lets you bring a personal item up to 41 × 34 × 20 cm that must fit under the seat in front of you at no extra cost.
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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