Frontier Airlines vs Southwest Airlines: hand luggage and carry-on compared
Two airlines, two sets of rules. Here they are side by side.
Frontier Airlines vs Southwest Airlines
Both airlines allow the same cabin bag size, 61 x 40.6 x 25.4 cm.
| Frontier Airlines | Southwest Airlines | |
|---|---|---|
| Cabin bag size | 61 x 40.6 x 25.4 cm | 61 x 40.6 x 25.4 cm |
| Cabin bag weight | 15.9 kg | no weight limit published |
| Cabin bag included? | No, costs extra | Yes |
| Small bag size | 45.7 x 35.6 x 20.3 cm | not published |
| Small bag included? | Yes | Yes |
Check your own bag against both
Both sets of figures come from the airlines' own websites and were checked on 27 October 2026 (Frontier Airlines) and 20 September 2026 (Southwest Airlines). See the full rules for Frontier Airlines and Southwest Airlines.