What is standard carry size?

Most airlines follow very similar size regulations when it comes to carry-on luggage. The majority go by a standard height, width and depth measurement. 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.



While "standard" carry-on sizes can vary slightly by airline in 2026, the most widely accepted dimensions for a main cabin bag are 22 x 14 x 9 inches (56 x 36 x 23 cm), including handles and wheels. This size is designed to fit into the overhead bins of most narrow-body and wide-body commercial aircraft. In addition to the main carry-on, most airlines allow one "personal item"—such as a laptop bag or purse—which typically must not exceed 18 x 14 x 8 inches and must fit under the seat in front of you. It is crucial to check the specific requirements of your carrier, especially if flying on ultra-low-cost airlines like Frontier, Spirit, or Ryanair, as they often have much stricter "sizers" at the gate and may charge a significant fee if your bag is even an inch over the limit. Many international carriers also enforce a weight limit for carry-ons, often ranging from 7kg to 10kg (15-22 lbs), which can catch travelers off guard if they are only focused on the bag's physical dimensions.

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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.

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Carry-on bags are limited to 22 inches long, 14 inches wide and 9 inches high including wheels and handles. All three measurements shouldn't add up to more than 45 inches.

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Most airlines allow backpacks as carry-ons, but size and weight restrictions vary depending on the carrier. Typically, the bag must be within the cabin baggage dimensions of around 22 x 14 x 9 inches (56 x 36 x 22 cm), commonly considered the standard size for carry-on.

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Your bag will have to fit into the sizer for it to be approved as a carry-on. Having a flexible fabric bag is advantageous in this situation because you'll be able to squeeze it in even if it's slightly oversized. Usually, many airlines won't check every carry-on but will instead go for ones that look oversized.

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Carry-On Allowance: 1 Carry-On + 1 Small Bag All carry-on luggage must fit in the overhead bin or under the seat in front of you and adhere to the following requirements: Maximum Dimensions of Carry-on: 22 in x 16 in x 8 in/55 cm x 40 cm x 20 cm. Maximum Weight of Carry-on: 22 lbs (10 kg)

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Most regular airlines won't check the size, unless it's obviously way larger or heavier than your allowance, but you may need to consider where is that extra inch, if it's too wide/thick, it may not fit in the baggage overhead compartment and a flight attendant may check it in for you…

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Everyone can bring one small cabin bag per person on board for free. It can be a maximum size of 45 x 36 x 20 cm (including any handles and wheels) and needs must be kept under the seat in front of you. That should be enough to bring all the essentials for your journey or for a short trip.

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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.

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Measure the length, height, and depth of your bag, including handles and wheels. Add those three measurements together. The total is your linear measurement, in either centimeters or inches.

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Famously quipped “the Ryanair size”, 40 x 20 x 25 cm (16 x 8 x 10 in) is the maximum dimensions of a cabin bag (such as a laptop bag or handbag) that ultra-cheap airline Ryanair would allow its passengers to carry into its cabin free of charge under its strict baggage allowance policy.

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A: If your cabin bag is too big to fit in the overhead locker on Ryanair flights, you may be asked to check it in at the boarding gate. If you have not purchased priority boarding, you may be charged an excess baggage fee for checking in your bag.

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You can take 1 piece of hand luggage per person with maximum dimensions of 40 x 25 x 20 cm on a Ryanair flight. Smaller items such as handbags must fit within your 1 piece of hand luggage.

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The combined dimensions of carry-on baggage should be less than 45 inches, with individual items measuring no more than 22 x 14 x 9 inches.

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How strict are the airlines about luggage dimensions? Carryon dimensions are limited to the size of the overhead bin. In those cases dimensions are strict. Anything too big gets gate checked.

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Unless your carry-on is extremely large, the airline employees at the gate most likely won't ask to measure it. If they'd ask each passenger to measure their carry-on, the boarding would take too long. This could cause delayed flights, which airlines don't want.

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Most airlines allow passengers to bring on both a carry-on and a personal item like a backpack, laptop bag, purse, briefcase, shopping bag, etc. The general rule of thumb is that your personal item is smaller in dimension than your carry-on bag and it can fit underneath the seat in front of you.

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While some airlines specify size limitations for personal items, others simply require the item to be small enough to fit underneath the seat in front of you. For personal items, here's the standard size on major airlines in the United States: American Airlines – 18” x 14” x 8”

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Though you might find an inch or two of a difference with various airlines, the standard domestic carry-on luggage size is 22 x 14 x 9, which includes the handle and the wheels.

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