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Southwest Airlines Carry-On Rules

Southwest Airlines carry-on rules at a glance: cabin bag up to 61×40.6×25.4 cm, No limit, and personal item status: Included.

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cabin bag: 61×40.6×25.4 cm
weight: No limit
personal item: Included

Lower caution editorial signal

Carry-on allowance

Cabin bag size: 61×40.6×25.4 cm
Cabin bag weight: No limit
Bags allowed: 1
Personal Item: Included

24×16×10 in including wheels, handles, and attachments. One carry-on per passenger.

How to use this policy

Start with the cabin bag row, then check the weight and personal-item rows separately. A bag has to pass every published limit at once; being under the length and width limit does not help if the depth, weight, or fare-specific allowance is tighter.

Southwest Airlines cabin bag size & weight

Southwest Airlines cabin bag specifications
Dimensions	61×40.6×25.4 cm(24×16×10 in) Measure the full external bag size, including wheels and handles.
Weight limit	No weight limit stated
Bags allowed	1 cabin bag
Includes wheels/handles	Yes
Personal Item	Allowed (size not specified)
Note	24×16×10 in including wheels, handles, and attachments. One carry-on per passenger.

Southwest Airlines 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.

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Frequently asked questions

What is the Southwest Airlines cabin bag size?

Southwest Airlines allows a cabin bag up to 61×40.6×25.4 cm (24×16×10 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. It must fit under the seat in front of you.

How strict is Southwest Airlines about bag size?

Southwest Airlines has lower caution enforcement. Editorial signal only. Airport behavior varies; the published allowance still governs.

Rules can change. Always verify with Southwest Airlines before flying.