Understanding Southwest Airlines’ Carry-On Size Guidelines

Different airlines have unique policies regarding carry-on luggage and items allowed on board. Discover everything you need to know about Southwest Airlines’ carry-on rules to pack appropriately for your trip.

What are the carry-on regulations for Southwest Airlines?

Southwest Airlines permits passengers to take one personal item and one carry-on bag aboard the plane at no extra cost. Your carry-on must adhere to size limits and be placed in the overhead compartments during the flight. The maximum dimensions for Southwest Airlines’ carry-on are 24 x 16 x 10 inches (61 x 41 x 25 cm). Bags exceeding these dimensions must be checked. Southwest Airlines does not specify a weight limit for carry-ons.

A personal item should fit under the seat in front of you, with a maximum size of 16.25 x 1 x 8 inches (41 x 34 x 20 cm). If it doesn't fit or if there's no seat ahead, a crew member will request that you store it in the overhead bins.

What is Southwest Airlines' policy regarding carry-on liquids?

Travelers are allowed to bring one quart-sized bag containing liquids, gels, aerosols, pastes, or creams in their carry-on. According to TSA regulations, each container must not exceed 3.4 ounces (100 ml). Be sure to place your liquids in a resealable bag and remove them from your carry-on for inspection at the airport.

What additional items are permitted on board?

Certain carry-on or personal items are allowed and do not count toward the TSA limits (considered “extra” items). These include:

• assistive and mobility devices (for individuals with disabilities)
• food items in disposable packaging
• child safety seats
• wearable clothing items (coats, wraps, etc.)
• umbrellas
• walking sticks

Travelers with children can check one stroller and one car seat at no additional charge. You also have the option to buy a reusable car seat/stroller bag from the airline. The stroller and car seat can be checked at the curb, ticket counter, or gate for your convenience. Keep in mind that car seats can be taken on board, but only in window and middle seats.

Does Southwest Airlines consider a backpack as a carry-on?

It depends on its dimensions. Southwest Airlines permits one carry-on bag (like a duffel or suitcase) and one personal item, which could be a purse, backpack, or briefcase.

Is it possible to bring both a carry-on and a backpack on Southwest Airlines?

Yes. Your backpack can serve as your personal item, provided it fits under the seat in front of you.

Note: This information is accurate as of 10.07.2023 and may change over time.