Can I use a large backpack as a carry-on?

In most cases, backpacks are considered personal items as long as they fit under the seat in front of you. For example, if you use a backpack as a personal item and put it under the seat in front of you, you can then use a duffel as a carry-on bag as long as it's under the airline's size requirements.



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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 backpack will generally be allowed as a carry-on if it's under 50 liters, or about 22 x 14 x 9 inches. Get a 45-liter backpack if you want to carry as much stuff as possible on the plane with you.

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Volume: A 45L backpack is the maximum-sized carry on allowed on most US airlines. For international or budget airlines, choose a bag under 40L. If you want to pack ultralight, anything 35L or under can be carried on virtually any airline. Dimensions: The common 45L volume is usually measured as 22 x 14 x 9 inches.

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With backpacks this size, it is essential that they fit you properly. TRAVEL: A 50L+ backpack is a great friend to those travelling for a few weeks.

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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.

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If your backpack doesn't fit, you may be asked to check it at the gate.

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Volume: A 45L backpack is the maximum-sized carry on allowed on most US airlines. For international or budget airlines, choose a bag under 40L. If you want to pack ultralight, anything 35L or under can be carried on virtually any airline. Dimensions: The common 45L volume is usually measured as 22 x 14 x 9 inches.

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Carry-on Luggage Size Matters Generally, most of the European airlines limit carry-on luggage to a maximum size of 55 x 40 x 20 cm ( 21.6 x 15.7 x 7.8 in); however, a few airlines do accept bags up to 25 cm wide (9.84 inc) or do not accept more than 35cm tall (13.7 in).

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The 40L will max out carry on dimensions on most airlines so you never have to check a bag. For stricter airlines, like RyanAir, 30L will be a better choice.

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Everything I've read on Reddit says anything over 40L absolutely won't pass as a carryon.

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30-50 liters: In general, luggage that has a capacity of about 50 liters or less is sufficient for a weekend trip. There are lots of carry-on duffels, packs and bags in this size range to choose from. 50-75 liters: For a trip that lasts one to two weeks, many people jump up to a bag in this range.

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Lufthansa Carry-On Baggage Allowance 1 cabin bag (Economy/ Premium Economy) or 2 items of cabin baggage (Business/ First), each with a weight of no more than 8 kg/ 17 lbs. Passengers may also carry on as hand luggage a smaller personal item, such as a handbag or laptop bag.

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It is rare for airlines to weigh your carry on or hand luggage. So long as your bag is not clearly overweight, and you're able to carry it with ease – you shouldn't have any issues with a slightly overweight bag.

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the gate staff won't let you board if your luggage is too large to fit. that's what the sizing bins at the check in desk and gate are for. Your luggage doesn't fit in the bin, you get made to check it in. You'll be informed while Checking In of you're allowed to take your big Carry-on luggage onboard.

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The sweet spot lies somewhere in the middle: a backpack between 40-70L is fine for a long-term trip – the trick is not to stuff it full.

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Assuming you're taking a plane, the best-size backpack for traveling Europe will meet carry-on standards. The maximum carry-on size for European backpacks (in liters) is generally around 40-45L. But 35L is a good size to ensure you slide under the limits.

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Size and Weight Restrictions 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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Carry-on Luggage Size Matters Generally, most of the European airlines limit carry-on luggage to a maximum size of 55 x 40 x 20 cm ( 21.6 x 15.7 x 7.8 in); however, a few airlines do accept bags up to 25 cm wide (9.84 inc) or do not accept more than 35cm tall (13.7 in).

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It is stated that one carry-on bag and one personal item are allowed per passenger. The dimensions of the under-seat compartment are 18 x 14 x 8 inches, which applies to all cabin and flight configuration.

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Most Airlines Don't Care if Your Carry-On Is 1 Inch Too Big. Carry-ons are measured at the airport before boarding the plane. It's done with metal measuring boxes just in the right size for the allowed carry-on dimensions. If your bag is too large and it isn't flexible, you won't be able to fit it inside.

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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.

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Ryanair's policy is that you are allowed to bring one small bag on board, plus one larger item. Anything larger than this will need to be checked in as hold luggage. The small bag must fit into the sizer at the airport and should not weigh more than 10kg.

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