What is a free personal item on a plane?

Personal items are free of charge, and any free luggage is a bonus, but you need to consider size restrictions when shopping for this bag. Typically, your personal item must fit under the seat in front of you and measure no more than 18 x 14 x 8 inches, although this varies by airline.



A "personal item" is a small piece of luggage that most airlines allow you to bring on board for free, even on "Basic Economy" tickets. The primary rule is that the item must fit under the seat in front of you. Typical dimensions are roughly 18 x 14 x 8 inches (45 x 35 x 20 cm), though this varies by carrier—for example, United is slightly stricter at 17 x 10 x 9 inches. Common examples include a purse, laptop bag, small backpack, or briefcase. This is distinct from a "carry-on bag," which is larger and goes in the overhead bin. In 2026, budget airlines like Frontier or Spirit are very strict about these sizes, often using "sizer" boxes at the gate to ensure your personal item isn't actually a hidden carry-on. Aside from your personal bag, most airlines also allow you to bring "exempt" items like a coat, an umbrella, a diaper bag, or duty-free shopping bags for free, which do not count toward your one-bag limit.

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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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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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While personal item size restrictions vary across airlines, most consider a purse, laptop bag, briefcase, or small backpack to count as a personal item. They must always fit under the seat in front of you.

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Most, if not all, carriers let you bring a personal item free of charge. Since your personal item will be placed under the seat in front of you, you should pack any items that you'll need during the flight.

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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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Airlines may sometimes ask you to buy a new seat in order to fit your big item. Then, the additional fee will be significant. Even worse, if your personal item is too large or heavy, it is possible that you have to leave it or be denied entry.

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While these sizes vary by airline, a personal item will typically measure no more than 18 x 14 x 8 inches or 45 x 35 x 29 cm. If your bag does not fit within these dimensions, the airline will likely consider it your 'carry-on' bag and charge you accordingly.

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Most airlines define a personal item as a purse, briefcase, or laptop bag. A small backpack, duffle, or tote is also acceptable if it fits under the seat in front of you. Suitcases are usually not considered personal items regardless of their size.

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This differs from airline to airline, but as a standard rule, pillows are allowed on a plane as a personal item if they are reasonably sized. This means the pillow can be stashed under the seat or in front of you.

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Backpacks, totes, and crossbody bags are typically considered personal items too. The key to remember is it must be able to fit underneath the seat in front of you. A carry-on is a type of hand luggage that you bring into the plane cabin with you and is larger than a personal item.

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A good rule of thumb is that if your carry-on bag fits under the seat in front of you, it's considered a personal item. This includes small backpacks, purses, briefcases, laptop bags, etc. Larger bags, including suitcases, must fit in the overhead bin compartment.

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Domestic carry-on policies. A good rule of thumb is that if your carry-on bag fits under the seat in front of you, it's considered a personal item. This includes small backpacks, purses, briefcases, laptop bags, etc. Larger bags, including suitcases, must fit in the overhead bin compartment.

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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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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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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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Each passenger may carry liquids, gels and aerosols in travel-size containers that are 3.4 ounces or100 milliliters. Each passenger is limited to one quart-size bag of liquids, gels and aerosols.

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Toothpaste is considered a liquid by the TSA (Transport Security Agency), even though it's technically a paste. In fact, all pastes, gels, waxes, and lotions are also classified as liquids. And even today, these substances are still restricted by the 3-1-1 rule in hand luggage due to safety threats.

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Is toothpaste considered a liquid by the TSA? Yes, toothpaste must adhere to the 3-1-1 rule for liquids and gels. Toothpaste can be brought through TSA security in your carry-on as long as it is 3.4 ounces (100 milliliters) or less and placed in a 1-quart bag.

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We don't have to leave our trusty products at home. If you are packing your makeup in your carry-on, just make sure that any liquids are in a container that is 3.4 ounces or less. You can also take as many 3.4 ounce containers as you want, as long as they all fit into one quart-sized, clear bag.

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For all other Basic Economy tickets, you're allowed one small personal item that fits under the seat in front of you, such as a shoulder bag, purse, laptop bag or other small item that is 9 inches x 10 inches x 17 inches (22 cm x 25 cm x 43 cm) or less.

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