How do I know if my bag is oversized?

Your baggage will be considered oversized or overweight when it exceeds the permitted dimensions and weight for checked baggage (50 lb in Economy class, 70 lb in Business class, and 158 linear cm).



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Summing Up: Traveling With Oversized Carry-Ons
If your carry-on is 1-2 inches over the size limit, don't stress about it too much. Most likely, you'll be allowed to pass through without anyone saying anything. But be prepared that if you encounter a strict airline employee, you might have to check it in.

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If your luggage does not fit in the sizer, you might have to pay a checked bag fee along with the gate checking fee and have your bag transferred to the airplane's cargo. Checked luggage is usually measured with a tape measure, to make sure that it's below 62 linear inches (height + width + depth).

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In general, if you're bag is not within the size restrictions at the check-in counter, different airlines will charge you a late check-in fee.

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If you are traveling with an item too large or too fragile to check or put in the overhead bin, you have the option to purchase a ticket for that item and have it travel as cabin seat baggage — in it's own seat on the plane. Cabin seat baggage is charged 100% of the applicable adult base fare, plus 6.25% cargo tax.

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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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While the bag shouldn't exceed the maximum dimensions of 45 linear inches, there may be some leeway depending on the airplane you're flying on. Overhead compartment sizes vary per airplane type. If you fly on an airplane with small overhead compartments, you will likely get busted for having an oversized carry-on.

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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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Most airlines will allow you to check one bag and have one carry-on bag. There is normally a maximum weight limit of 50 pounds per checked bag as well as a size restriction. The most common maximum size bag allowed is 62 linear (total) inches. A common size bag for checking through is: 27 x 21 x 14.

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If the baggage size, be it check in bag or cabin bag, is higher than usual, you may need to pay additional sum if required. If the baggage is too big or too heavy, the airline may send it separately by cargo plane. You may need to pay additional sum if required.

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You may be offered a seat in a higher class of service that may provide more space; in this case, you'll be responsible for the fare difference. If accommodations can't be made on your original flight, you can buy seats on a different flight at the same price as your original seats.

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2 bags standard, up to 10 bags maximum for U S domestic, Transatlantic, and Transpacific, up to 5 bags maximum if your travel includes the Caribbean, Central America, Mexico, and South America. Maximum dimensions: 62 inches or 157 centimeters (length + width + height).

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So, yes, if your backpack is small enough that you can fit it under the seat in front of you, then it's a personal item. This designation becomes especially important when you're flying on a low-cost carrier or have booked a basic economy ticket on a larger airline.

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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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Firearms, ammunition, and fireworks are prohibited, as are all knives and safety razors (including pocket knives and Swiss Army knives). Straight razors and replacement blades for straight razors are also not allowed. Most tools also cannot be packed in carry-on luggage, as they have the potential to cause harm.

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In most cases, an airline will allow you to bring one carry-on baggage and one personal item. A personal item is normally something like a purse, laptop, backpack or camera case. Personal items should always be small enough to fit underneath the seat in front of you.

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The good news is that, yes, a 24-inch luggage can be a carry-on as long as it meets the size restrictions set by the airline you are flying with. Most airlines have similar size restrictions for carry-on luggage, with the maximum dimensions being 22 inches x 14 inches x 9 inches.

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