What is strict carry-on size?

Including handles and wheels, the maximum dimensions for a carry-on are 22 inches long, 14 inches wide and 9 inches high. Personal items are limited to 17 inches long, 10 inches wide and 9 inches high.



A "strict" carry-on size in 2026 is generally defined by the 22 x 14 x 9 inches (56 x 36 x 23 cm) standard. This measurement includes wheels, handles, and any protruding pockets. While many travelers previously relied on "flexible" enforcement, airlines are increasingly using automated gate sizers and AI-driven cameras to flag bags that exceed these limits. On budget carriers like Spirit or Ryanair, the "strict" size for a free personal item is even smaller, typically requiring it to fit entirely under the seat in front of you (often around 18 x 14 x 8 inches). If your bag is even half an inch over, you may be forced to gate-check it and pay a heavy fee. To be safe, look for luggage specifically marketed as "International Carry-On," as these are built to the slightly smaller dimensions required by non-US airlines, ensuring your bag fits into the overhead bins of almost any aircraft in the world.

People Also Ask

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.

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Oversized Carry-Ons Need to Be Checked-in
If your carry-on is oversized (and doesn't physically fit inside the overhead compartments) or you encounter a strict airline employee, they will ask you to check it in at the gate.

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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.

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Your bag must fit in the overhead bin, so it must be 9 in x 14 in x 22 in (23 cm x 35 cm x 56 cm). When measuring your bag, be sure to include the handle and wheels.

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American Airlines carry-on dimensions should be no more than 22 inches X 14 inches X 9 inches (56 cm X 36 cm X 23 cm), including handles and wheels. All carry-on must fit the sizer at the departure gate. If the bag does not fit in the sizer, it will need to be checked.

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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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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. Read Carry Ons vs. Personal Items for more on the differences between the two.

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If your carry-on is too big, you will either have to pay penalty fees or check your luggage. Checking your luggage means that your carry-on won't be traveling with you but will instead be sent to the airplane cargo, and you will be able to claim it once the plane lands.

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You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.

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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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What if my cabin bag is 2cm bigger? Extra 2–4 cm wont be noticed by the check in staff and they dont have a ruler to measure the dimension. they only strict with the weight. But extra 2–3 kg is also not a problem.

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“Luggage manufacturers have responded with efficient, condensed bags to streamline travel and eliminate or reduce baggage fees.” For their part, many mainline airlines are introducing larger overhead bins to make it possible for more people to store luggage, according to the Los Angeles Times.

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Does the Away Bigger Carry-On fit in overhead bins? The Bigger Carry-On was made to fit perfectly in the overhead bin of most major U.S. airlines, but you may need to check it on smaller airplanes (including regional or international flights).

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According to airline policy, any personal items stowed beneath seats should not exceed 18 inches by 14 inches by 8 inches.

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The 3-1-1 Rule or Liquids Rule These rules apply to items in carry-on bags (carry-on-sized suitcases, backpacks, purses, laptop bag and mores) that you plan to take through security. The TSA's 3-1-1 rule outlines the travel limitations for liquids, aerosols, gels, creams and pastes.

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Is there a weight limit for carry-on bags? 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.

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For most airlines and flights, a carry on duffle bag must be no larger than 22 x 14 x 9 inches or 45L. These dimensions tend to be more common for suitcases and backpacks. Duffles are longest in one dimension with similar measurements in the other two dimensions.

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Most airlines will base their size limits on the total size of your bag, not just the weight in pounds like checked bags. Some airlines only give a guidance on “linear inches,” i.e. the sum of the length + width + depth of your bag. A limit of 40 linear inches could also be expressed as 18 x 14 x 8 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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While this can be confusing, most popular airlines allow you to bring a carry-on and personal item, such as a backpack or purse. In general, your personal item should be smaller than your carry-on and under the specific airline's carry-on dimensions, allowing it to fit under the seat in front of you.

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easyJet hand luggage allowance Each passenger can bring a small cabin bag (maximum size 45 x 36 x 20cm) on-board when travelling with easyJet with no weight limit. It includes items like a small trolley case, handbag, rucksack and laptop bag. There is no weight limit on small cabin baggage.

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Yes, handbags do count as your one piece of hand luggage. The best way to get around this is to place your handbag within your cabin bag/luggage piece and remove it to use once onboard.

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