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Is a 21 inch suitcase small?

21 - 22 Carry-on Luggage
These are the most popular sizes of carry-on luggage for U.S. domestic flights. Most U.S. airlines have carry on restrictions of 22 x 14 x 9, or 45 linear inches.



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Is a 20-Inch Suitcase or Luggage Considered a Carry-on? This depends on specific requirements from the airline both in terms of dimensions and total weight. But since most 20-inch suitcases and luggage are found in the 30-40 liters range, this means you'll likely be fine using it as such.

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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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Carry-on bags shouldn't be larger than 22 inches long, 14 inches wide and 9 inches high including handles and wheels. Dimensions of personal items should not exceed 18 inches long, 14 inches wide and 8 inches high. There are no weight restrictions for carry-on luggage.

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Most airlines accept 55 cm (20 inches) cabin suitcases. (See tables below for individual airlines carry-on allowances.) The size of a standard cabin luggage is 50x36x23cm (20x14.4x9.2inch).

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For a 10-day trip, the suitcase size that you need will be between 18 and 22 inches in length. This size is suitable as carry-on luggage. However, if you want a bigger one for extra space, you can choose a 24-inch suitcase, which is recommended for 2-3 weeks' worth of travel but needs to be checked in.

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1. H x W x D: Most airlines use this formula to calculate bag size. For example, they might require dimensions like 22 x 14 x 9 inches, which is the most common set of dimensions for carry-ons.

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25 - 27 Checked Luggage They are ideal for trips of 5 to 7 days, or longer, depending on how you pack.

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Taking Measurements
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. Measure from the wheels to the top of the handle for height.

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The short answer is yes, the TSA is strict about carry-on size. They have specific guidelines for a reason and their agents are trained to enforce them. However, it's important to note that there is some leeway and flexibility within these guidelines.

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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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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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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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