preloadPacking a carry-on

Each airline has its own set of regulations regarding carry-on luggage. This guide will help you follow United Airlines’ rules to avoid unexpected airline fees.

What is United Airlines’ carry-on size policy?

For most flights, United Airlines allows passengers to bring one carry-on bag and one personal item onboard. However, if you are flying in Basic Economy, you can bring only one personal item, unless you are traveling to South America, across the Atlantic, or across the Pacific, which then allows you to bring a carry-on bag.

 Carry-on bagPersonal item
Max dimensions9 x 14 x 22 inches
(23 x 35 x 56 cm)
9 x 10 x 17 inches
(22 x 25 x 43 cm)
Max weightNot specifiedNot specified
Allowance1 carry-on bag
(fee free for all fares except Basic Economy on some routes)
1 personal item
(fee free for all fares)


United Airlines does not have a specific weight limit for carry-on bags or personal items across its fares. Your personal item should also fit under the seat in front of you.

What is United Airlines’ carry-on liquid policy?

United Airlines follows the TSA’s 3-1-1 rule for carry-on liquid items. Each passenger can bring a quart-sized bag of liquids, aerosols, gels, creams, and pastes in containers of 3.4 ounces (100 milliliters) or less. Have these liquids in a separate bag from your carry-on to breeze through security.

What extra items can you bring on board?

United Airlines implements specific policies for carrying special items as carry-on baggage. Musical instruments and pet containers may be allowed as long as they meet the size restrictions and fit in the overhead bin or under the seat in front of you.

However, sports equipment must be transported as checked baggage.

A male passenger uses his smartphone while walking with his luggage in the airport.

In addition to your carry-on bag and one personal item, United Airlines allows you to bring several items on board, free of charge, including:

  • A jacket or coat
  • An umbrella
  • Reading materials
  • Food or items purchased at the airport
  • A diaper bag and breast pump for parents
  • Mobility items such as wheelchairs, canes, crutches
  • Car seats, child safety harnesses, and strollers

United Airlines carry-on FAQ

A senior couple standing with their luggage in the middle of an airport looking at their ticket.

How strict is United Airlines with its carry-on luggage guidelines?

United Airlines enforces its luggage restrictions very strictly. Ensure that your carry-on bag meets the airline’s requirements to avoid any inconvenience during your travel.

Is a backpack considered a personal item on United Airlines?

Yes, if it is within the prescribed size dimensions and fits under the seat in front of you.

Disclaimer: Prices and information are correct as of 05.07.2023 and may vary with time.

About the author

Fie KornumFie is Head of Content at KAYAK. Her ideal holiday would be sitting by the fireplace in a quiet cabin somewhere off the grid, watching the snow fall while relaxing with a glass of wine. Reality, however, is messier - and a lot noisier. Because when you’re travelling with two kids, there’s always something happening (usually involving pools or ice cream.) Follow Fie on Linkedin for more travel inspiration.

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