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Published on July 9, 2026 · Last verified on August 16, 2026 by Luggage Validator
3/10
Southwest Airlines Baggage Policy Strictness
Lenient
LenientModerateStrict
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Overview

Standard baggage allowance for your selected route and fare class. All dimensions include wheels and handles.

Carry-on Bag
61 × 41 × 25 cm (24 × 16 × 10 in)
Overhead bin · Not specified
Personal Item
41 × 34 × 20 cm (16.25 × 13.5 × 8 in)
Under seat ·Not specified
Checked Baggage
No free bags
Available for a fee
Included in higher fares

Free Special Items

Items you can bring for free that do not count toward your standard baggage allowance on Southwest Airlines.

Stroller
One stroller per ticketed customer traveling with a child can be checked free at the counter or gate.
Car seat / child restraint system
One car seat per ticketed customer traveling with a child can be checked free at the counter or gate.
Ski / golf equipment
One set of skis or golf clubs counts as one checked bag; oversize fee waived up to 115 inches.
Wheelchairs and mobility aids
Assistive devices are accepted free of charge and do not count toward the bag limit.

Standard Economy Allowance

Quick reference for your selected route type. See below for full cabin class comparison.

Baggage TypeFreeMax SizeWeight Limit
Carry-on Bag
Overhead bin · per piece
1 pc

61×41×25cm

24×16×10in

Not specified

Personal Item
Under seat · per piece
1 pc

41×34×20cm

16.25×13.5×8in

Not specified

Checked Baggage
Cargo hold · piece system
No free--

Full Cabin Class Comparison

Compare allowances across all fare types and cabin classes for your selected route.

ItemBasicChoiceChoice PreferredChoice Extra
Personal Item
Under seat
1 pc 1 pc 1 pc 1 pc
Personal Item Size
L × W × H

41×34×20cm

16.25×13.5×8in

41×34×20cm

16.25×13.5×8in

41×34×20cm

16.25×13.5×8in

41×34×20cm

16.25×13.5×8in

Carry-on Pieces
Overhead bin access
1 pc 1 pc 1 pc 1 pc
Carry-on Size
L × W × H

61×41×25cm

24×16×10in

61×41×25cm

24×16×10in

61×41×25cm

24×16×10in

61×41×25cm

24×16×10in

Carry-on Weight
Per piece

Not specified

Not specified

Not specified

Not specified

Free Checked Bags
Piece system
NoNoNo2 pc
Checked Bag Size
Max per piece
---

≤ 157.5 cm

62 in

Checked Bag Weight
Per piece max
---

23 kg

50 lbs

Common Luggage Compatibility

Based on Southwest Airlines · Economy class. Compare luggage compatibility across all fare types and cabin classes using the filters above.

LuggagePersonal ItemCarry-onChecked
Regular Backpack
40×30×15 cm · 15.7×11.8×5.9 in · 3 kg · 7 lbs
OKOKOK
16" Under-seat Briefcase
40×30×20 cm · 15.7×11.8×7.9 in · 4 kg · 9 lbs
OKOKOK
18" Cabin Suitcase
45×35×20 cm · 17.7×13.8×7.9 in · 5 kg · 11 lbs
Over LimitOKOK
Standard 20" Carry-on
55×36×20 cm · 21.7×14.2×7.9 in · 7 kg · 15 lbs
Over LimitOKOK
22" North American Carry-on
56×35×22 cm · 22×13.8×8.7 in · 7.5 kg · 17 lbs
Over LimitOKOK
24" Medium Checked Suitcase
65×42×26 cm · 25.6×16.5×10.2 in · 9 kg · 20 lbs
Over LimitOver LimitOK
26" Mid-size Checked Suitcase
70×46×28 cm · 27.6×18.1×11 in · 10.5 kg · 23 lbs
Over LimitOver LimitOK
28" Large Checked Suitcase (IATA Standard)
76×51×31 cm · 29.9×20.1×12.2 in · 12 kg · 26 lbs
Over LimitOver LimitOver Limit

Frequently Asked Questions

Does Southwest still give you two free checked bags in 2026?

Only Choice Extra fares include two free checked bags. Basic, Choice and Choice Preferred fares pay 45 USD for the first checked bag and 55 USD for the second on tickets booked on or after April 9, 2026.
Rapid Rewards A-List Preferred members also get two free bags, while A-List members and Rapid Rewards credit cardholders get their first bag free.
A third checked bag costs 150 USD, and each bag must stay under 50 lbs and 62 linear inches.

What is the carry-on size limit for Southwest Airlines?

Your carry-on bag on Southwest must measure no more than 24 x 16 x 10 inches, and wheels, handles and any attachments count toward these dimensions.
It needs to fit in the overhead bin, and bags that are too large must be checked at the ticket counter before you go to the gate.
Southwest does not publish a weight limit for carry-on bags, but you must be able to lift your bag into the overhead bin by yourself.

What counts as a personal item on Southwest?

You may bring one personal item in addition to your carry-on bag, and it must fit under the seat in front of you.
Common examples include a purse, briefcase, laptop case, small backpack or small camera. A pet carrier counts as either your carry-on bag or your personal item.
If you bring more than one carry-on or personal item, the extra item has to be checked at the ticket counter.

How much are Southwest overweight and oversize bag fees?

A checked bag between 51 and 70 lbs costs a 100 USD overweight fee, and a bag between 71 and 100 lbs costs 200 USD, each on top of the standard bag fee.
Oversized bags between 63 and 80 linear inches cost 200 USD, and bags over 80 inches or 100 lbs are not accepted as checked baggage at all.
Standard checked bags must weigh no more than 50 lbs and measure no more than 62 linear inches including wheels and handles.

Can I check a stroller or car seat for free on Southwest?

Yes, each ticketed customer traveling with a child can check one stroller and one car seat or child restraint system free of charge.
You can check these items at the curb, the ticket counter or right at the gate, and gate checked items are returned at baggage claim at your final destination.
Portable cribs and pack and plays are not included - they count as regular checked bags and normal bag fees apply.

Are Southwest bag fees different on interisland Hawaii flights?

Yes, flights that begin and end within Hawaii have their own prices. On tickets booked on or after April 9, 2026, non-residents pay 30 USD for the first bag, 40 USD for the second and 50 USD for the third.
Hawaii residents with a Rapid Rewards account number in the booking get two free checked bags on interisland flights.
Overweight and oversize fees are also lower on interisland flights - 35 USD for a bag between 51 and 70 lbs or 63 to 80 inches, and 70 USD for 71 to 100 lbs.
All baggage rules on this page are from the official Southwest Airlines website. Last updated August 16, 2026. Before you fly, please check the official site again to make sure nothing has changed.
Help keep this data accurate. If you spot outdated baggage rules or have recent experience flying with Southwest Airlines contribute your update