Carry-on luggage for a United Airlines flight must be no larger than 9 inches X 14 inches X 22 inches (22 cm X 35 cm X 56 cm). When measuring, remember these dimensions include the luggage's wheels and handles.
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United Airlines Carry-On BaggageOne full-sized carry-on bag 9 inches x 14 inches x 22 inches (22 cm x 35 cm x 56 cm) plus one personal item 9 inches x 10 inches x 17 inches (22 cm x 25 cm x 43 cm). If you are travelling on a Basic Economy ticket, your personal item will be the only item you can bring on board.
United restricts full-sized carry-ons for its basic economy tickets. Basic economy tickets are ineligible for refunds and don't include seat selection. Economy Plus features standard economy seats with extra legroom. Standard economy includes seat selection and a free carry-on.
While personal item size restrictions vary across airlines, most airlines consider a small backpack, purse, briefcase, or laptop bag to be a personal item. These must always fit under the seat in front of you. Many airlines restrict passengers to one personal item and one carry on bag.
Airlines may sometimes ask you to buy a new seat in order to fit your big item. Then, the additional fee will be significant. Even worse, if your personal item is too large or heavy, it is possible that you have to leave it or be denied entry.
If your bag is too large and it isn't flexible, you won't be able to fit it inside. But airlines rarely ask you to use it. What is this? Unless your carry-on is extremely large, the airline employees at the gate most likely won't ask to measure it.
United Airlines personal item size limitsWhile many airlines don't specify the size of your personal item, United Airlines is one of the few that do. According to their website, your personal item cannot exceed 17 inches by 10 inches by 9 inches (43 centimeters by 25 centimeters by 22 centimers).
Personal items must fit under the seat in front of you. Common items include backpacks, laptop bags, and purses. These bags can be no larger than 9 x 10 x 17 inches (22 x 25 x 43 cm). Like carry-on bags, personal items do not have to meet a weight requirement.
A carry on bag is your larger, primary bag, which you'll stow in the overhead bin. A backpack can be your carry on if it meets your airline's carry on size limits. A personal item is a smaller, secondary bag, which you'll stow under the seat in front of you.
In general, standard domestic carry-on luggage size is 22 x 14 x 9 inches. If you're flying internationally, that may vary a little to 21.5 x 15.5 x 9 inches. Remember, those dimensions include the handle, wheels and anything else that may protrude from your suitcase so don't miss them from your measurements.
Keep in mind that upgrading to Economy Plus will only net you more legroom, guaranteed in-seat power access and a seat closer to the front of the plane; it will not get you an additional baggage allowance.
International carry-on sizes are generally smaller than the US domestic limit of 22 x 14 x 9 inches or 45 linear inches. Carry ons for international flights are usually between 22 and 15.7 inches tall, with varying depth and width limits.
What size should your carry-on luggage be? On domestic flights within the United States, a carry-on bag that's smaller than 22 x 14 x 9 inches (45 linear inches), including handles and wheels will meet the size restrictions of all major airlines, such as United Airlines and Alaska Airlines.
Most major domestic airlines do not impose a weight limit on carry-on bags; however, several international airlines have weight restrictions for carry-on luggage and in some cases, personal items.
In general, standard domestic carry-on luggage size is 22 x 14 x 9 inches. If you're flying internationally, that may vary a little to 21.5 x 15.5 x 9 inches. Remember, those dimensions include the handle, wheels and anything else that may protrude from your suitcase so don't miss them from your measurements.
On domestic flights within the United States, a carry-on bag that's smaller than 22 x 14 x 9 inches (45 linear inches), including handles and wheels will meet the size restrictions of all major airlines, such as United Airlines and Alaska Airlines.
It is possible to pack everything you need for a week or even months without checking a bag. Want to learn how to pack everything in a carry-on? Here are our top tips for fitting all the essentials in approximately 45-inches of linear space and why it's a great idea.