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Southwest Airlines checked bag limits: 50 lb (22.7 kg), 62 linear inches

Updated 2026-09-24. Researched from airline pages and published specifications.

Quick answerSouthwest Airlines’s standard checked bag limit is 50 lb (22.7 kg) and 62 linear inches (length + width + height). 9 of the 17 checked suitcases we list with wheels-included sizes are within the size limit.

Limits change; confirm with your airline before you fly. Every figure here links to the airline page it came from.

Travelpro Platinum Elite Hardside Checked Luggage

Travelpro Platinum Elite Hardside Checked Luggage

27.25 x 18 x 13 in, wheels and handles included; 11.1 lb listed

The largest checked suitcase in our catalog whose wheels-included listing size stays within Southwest’s 62 linear inches limit.

Under $500  Check price on Amazon

Prices change often.

What are Southwest's checked bag limits?

LimitFigureSource
Standard weight50 lb (22.7 kg)Southwest baggage page, checked 2026
Size (L + W + H)62 linear inches
Premium cabin weightcheck the airline

Overweight 51 to 70 lb and oversize 63 to 80 in are accepted for a fee.

How much is Southwest's overweight fee?

Bag weightFee per bag, each way
51 to 70 lb$100

These are the bands on Southwest's own page, charged on top of the standard bag fee. Fees change; check the airline.

Which checked suitcases are within Southwest's size limit?

SuitcaseSize with wheelsLinear inVerdictBudget
Samsonite Solyte DLX Softside Expandable Luggage with Spinner Wheels33 x 21 x 1367 OVERSIZEUnder $500
Travelpro Platinum Elite Checked Luggage Spinner32.5 x 21 x 13.2566.8 OVERSIZEUnder $500
Samsonite Omni PC Hardside Expandable Luggage with Spinner Wheels30.5 x 21.5 x 13.565.5 OVERSIZEUnder $250
Samsonite Hard-Sided 28-Inch Lightweight Checked Large Expandable Element31 x 20.6 x 1364.6 OVERSIZEUnder $250
Amazon Basics 30" Hardside Large Checked Luggage30.7 x 20.7 x 12.664 OVERSIZEUnder $100
Samsonite Winfield 2 Hardside Expandable Luggage with Spinner Wheels31 x 20 x 12.7563.8 OVERSIZEUnder $250
Samsonite Omni 2 28-Inch Large Checked Hardside Luggage with 360° Spinner30.4 x 20.9 x 12.463.7 OVERSIZEUnder $250
Rockland Melbourne Hardside Expandable Spinner Wheel Luggage30 x 20 x 1363 OVERSIZEUnder $100
Travelpro Platinum Elite Hardside Checked Luggage27.25 x 18 x 1358.3 STANDARDUnder $500
Travelpro Platinum Elite Checked Luggage Spinner28 x 18.5 x 11.7558.3 STANDARDUnder $500
DELSEY PARIS Helium Aero, 24 Inch Checked-Medium Luggage27.5 x 18 x 11.7557.3 STANDARDUnder $250
Samsonite Hard-Sided 24-Inch Lightweight Checked Medium Expandable Element27.32 x 17.7 x 11.556.5 STANDARDUnder $250
Samsonite Winfield 2 Hardside Expandable Luggage with Spinner Wheels27 x 17.5 x 11.7556.3 STANDARDUnder $250
Samsonite Omni PC Hardside Expandable Luggage with Spinner Wheels26.5 x 17.75 x 11.7556 STANDARDUnder $250

Checked bags within Southwest’s limits, and a scale

Frequently asked questions

What are the Southwest checked baggage dimensions?

Southwest Airlines publishes 62 linear inches as the standard checked bag size, measured as length plus width plus height with wheels and handles; there is no separate per-side limit. On international flights the number of free bags changes with the fare more often than the per-bag size does, so confirm the allowance for your route.

What is the Southwest checked bag weight limit?

Southwest Airlines’s own page gives 50 lb (22.7 kg) for a standard checked bag. Overweight 51 to 70 lb and oversize 63 to 80 in are accepted for a fee. Weigh the packed bag at home: a luggage scale costs less than a single overweight fee at most airlines.

How big can a checked bag be on Southwest?

The standard size is 62 linear inches, measured as length plus width plus height with wheels and handles. Of the 17 checked suitcases in our catalog with wheels-included listing sizes, 9 are within it, the largest being 58.3 linear inches. 8 of the 28 to 30 inch cases are over it, so check a large case’s wheels-included figure before you buy it for Southwest.

What happens if my Southwest bag is overweight?

Southwest’s page lists overweight bands of $100 for 51 to 70 lb, per bag and direction, on top of the ordinary bag fee. Fees change; check the airline before you fly. Moving a few pounds into your carry-on is usually free.

Researched, not professional advice. Fees change often and differ by route, fare and status; check the airline before you fly.