What is the largest personal item you can take on a plane?

Personal Item Size Limits American Airlines advises customers to travel with personal items that are no larger than 18 inches x 14 inches x 8 inches. If you are flying on Delta, be sure your personal item is 17 inches x 13 inches x 9 inches or smaller.



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However, every airline has different restrictions for size. In most cases, your backpack should be no more than 18 x 14 x 8 inches. You should confirm with the airline to avoid penalty fees if your personal item is too large.

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In general, travelers are permitted to bring into the plane one personal item and one carry-on bag with them on most flights. The personal item is often a small bag, such as a handbag or laptop bag, that is able to be stowed away beneath the seat that is directly in front of you.

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Usually, many airlines won't check every carry-on but will instead go for ones that look oversized. 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.

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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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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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The main theme of the airlines' rules is that a personal item is a small bag, like a duffle bag, daypack, purse, tote, or laptop bag that fits under the seat in front of you. A small duffle bag fits in the spirit of this rule.

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A personal item is any type of luggage that fits underneath the plane seat in front of you. Most domestic airlines in the United States require a personal item to be 18” x 14” x 8” or smaller in size. Personal items can include a purse, briefcase, small backpack, laptop bag, weekender or small duffel bag.

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Hand luggage is rarely measured and even less often weighed. It does happen and some airlines are very strict but the majority of airlines only weigh checked luggage. Before boarding most flights, there is a sizer close to the gate.

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Certainly, you can pack clothes in your personal items or carry-on bag. But for a better experience, we recommend packing most of your clothes in your carry on and leaving extra space in your personal items.

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You can bring liquid or spray deodorants in containers not exceeding 3.4 ounces in a carry-on bag, as per the TSA liquid limit. This rule is not applicable on solid deodorants. All deodorants can go in unlimited quantities in your checked bag, but you must pack them in reasonable quantities.

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You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item.

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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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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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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 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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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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Depending on the airline and airfare type you purchase, a carry-on duffel bag will count as your one carry-on item and a backpack or purse will be your allotted personal item. If you purchase the most basic fare of some airlines like United or JetBlue, you may have to pay extra for a carry-on item.

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Airline rules allow for one carry on bag and one personal item, unless you're flying on a basic economy fare. But we've all seen people selfishly putting two bags in the overhead bin or carrying on more luggage than could possibly be allowed. You don't want to be like them. But you also might not be a one bagger.

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Each passenger is limited to one quart-size bag of liquids, gels and aerosols. Common travel items that must comply with the 3-1-1 liquids rule include toothpaste, shampoo, conditioner, mouthwash and lotion.

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Carry-on Baggage Screening TSA screens approximately 4.9 million carry-on bags for explosives and other dangerous items daily. Here's what to expect when taking your carry-on bag through security screening next time you fly.

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