WN · United States · North America
Southwest Airlines hand luggage & liquid rules
Southwest includes one carry-on (60×40×25 cm, 24×16×10 in) plus a personal item free on every fare. Liquids follow TSA 3-1-1: 3.4 oz per container in one quart-size clear bag.
Cabin bag allowance
Personal item45 × 35 × 20 cm
18.5×8.5×13.5 in.
Overhead cabin bag60 × 40 × 25 cm
24×16×10 in.
Liquid rules on this airline
- TSA 3-1-1 applies at all US airports.
Duty-free & connections
- Sealed international duty-free liquids in the STEB with receipt are allowed on connections.
Medicines, baby milk, batteries & vapes
- Baby formula, breast milk, juice and medical liquids are TSA-exempt.
Frequently asked
Are checked bags free on Southwest?
Yes — Southwest still includes two free checked bags on every fare.
Main hubs
Dallas Love Field (DAL) · Chicago Midway (MDW) · Las Vegas (LAS)
Sources
- Southwest carry-on bags — checked 2026-06-01
Last reviewed 2026-06-01.