Is a Backpack a Personal Item? 2026

So can a backpack be a personal item?

Yes, a backpack can be counted a personal item if it fits under the seat in front of you with any airline. It doesn’t matter whether you are flying with America, United, JetBlue or air Canada, a personal item is typically any small bag or item that fit under the seat in front of you, distinguishing it from larger carry-on luggage that goes in the overhead bin

So, if you are traveling with a small backpack or daypack that can be stowed properly under the seat, you shouldn’t have any issues. 

Passengers who try to sneak an oversized or overweight backpack that won’t fit under the seat most of the time they will get caught, and the backpack will be counted as a carry-on.

In this post, we will answer all your questions about taking backpacks as a personal item and what types of backpacks will fit perfectly under the seat.

let’s dive right.

Is a Backpack Considered a Personal Item?

Yes, on most airlines a small backpack will be counted as a personal item.

Most airlines do not endorse any type of suitcase or backpack.

But here is the rule, a carry-on bag need to fit in the overhead bin, but a personal item need to fit under the seat.

But if you are flying with a budget airline or other airlines basic economy,  like Frontier, Allegiant, Sun Country Airlines, Spirit, JetBlue or United Airlines you will need to make sure that you bring the right size, as they charge for any second bag your bring.

Some airlines have specified their personal item size as 8” x 14” x 18” (45 x 35 x 20 cm), while a few others do not have a specific size. 

The general rule of thumb is that your personal item needs to be smaller in dimensions than your carry-on bag and can be stowed underneath the seat in front of you.

A 40L backpack can have a size of approximately 9.8” x 11.8” x 21.3”, which may be slightly larger for a personal item.

The allowed size. So, if your airline’s personal item size is more than  8” x 14” x 18” (45 x 35 x 20 cm), there is a higher chance they will count your backpack as a carry-on.

Is It Free To Take a Backpack On a Plane?

Yes, most airlines allow a “personal item” free of charge, so you can take all your essential items with you.

I don’t think it’s fair for airlines to charge passengers for any items they bring on board.

Most of the time, airlines allow items like as a small backpack, shoulder bag, a smaller purse, a computer bag, or even and under-seat bag, all these items go under the seat in front of you.

In addition, you can also have one piece of carry-on luggage or “hand baggage” that can fit in the overhead bin.

However, on some low-cost airlines or with certain basic economy tickets, you may have to pay in order to bring a carry-on bag.

For example, In United Airlines Basic economy carry-on bags are only free on flights to South America, across the Atlantic or to international destinations across the Pacific.

This means if you have a backpack you can bring it for free in addition to carry-on bag, but if you are fyi to other destination, you can only bring a backpack for free.

What Size Backpack Is Considered a Personal Item?

Most airlines do not specify their personal item size; however, some airlines do mention it on their websites, like American Airlines, which has a personal item size of 18” x 14” x 8” (45 x 35 x 20 cm) ,see table bellow or you can use this personal items size checker to validate your backpack size.

Note: If your airline listed the size in “linear inches,” take the combined length, width, and depth of the bag to get your total in linear inches: 8” + 14” + 18” = 40” linear inches (45 + 35 + 20 = 100 cm).

Here are some airlines’ personal item sizes. Check your backpack size to see if it is within the airline’s size limits:

I wanted to find some dried answers from airlines, and here is some screenshots from Airlines:

Is a Backpack a Personal Item On United Airlines?

Kim wanted to know if United Airlines’ basic economy allowed only one personal item that can be a pure or a backpack, and the first checked bag is $30.

United customer service replied that is correct, so she can take a backpack as a personal item.

Is a Backpack a Personal Item On Frontier Airlines?

E-Simmon asked if a normally filled backpack is suitable as a free personal item

Frontier replied that as long as it fits their personal item dimensions it will be free.

Is a Backpack a Personal Item On Spirit Airlines?

Jacobs backpack is 1.75 inches larger than the Spirit Airlines allowed size.

They replied that as long as it is within 18” x 14” x 8” including handles and wheels you are good to go.

Is a Backpack a Personal Item On Delta Airlines?

Georgia wanted to own what is considered a small backpack on Delta.

They replied there isn’t a specified size for the personal item, but for reference the low average under the seat dimensions where the personal item is expected to be stored is around 12” L x 12” W x 7” H.

Is a Backpack a Personal Item On American Airlines?

Michael had a flight with AmericanAir and wanted to know if they considered a backpack or a personal item.

The AmericanAir customer service replied that if he got a 10 day trip packed, it will be considered a carry-on bag and a personal item and go under the seat easily.

Is a Backpack a Personal Item On Allegiant Air?

Shanna wanted to down every detail about Allegiant Air measurement and weight.

They replied that a personal item is something that can fit under the seat in front of you, like a purse, a briefcase or a small backpack.

Final Thoughts: Is a Backpack a Personal Item?

The short answer, is yes.

A backpack can be considered a personal item if it fits under the seat of your airline.

You will need to be careful when flying with some low const airlines, as they will be quite strict about their personal item size.

If you are planning to bring a large backpack on your next flight. Ensure that you take a lighter backpack that can be squeezed to fit under the seat.

Remember, airline staff not the TSA enforce personal item size restrictions.

I hope this helps

Happy travels

FAQs: Is a Backpack a Personal Item?

• Is a backpack considered a personal item on flights?
  Yes. A backpack will be deemed a personal item only if it fits fully under the seat in front of you. If it does not, airlines will treat it as a carry-on.
• What size backpack counts as a personal item?
  Most airlines include in ether luggage allowance personal items up to 18 x 14 x 8 inches / 45 x 35 x 20 cm. Backpacks larger than this especially tall or rigid ones are more likely to be counted as a carry-on.
• Are backpacks free to bring on a plane?
  Backpacks are free when they qualify as a personal item. On budget airlines or basic economy fares, oversized backpacks may trigger carry-on fees.
• Can I bring a backpack and a carry-on together?
  On most standard classes, yes. You can bring one backpack (personal item) in addition of one carry-on. Basic economy tickets may allow only one free personal item.
• Do airlines actually take a look at backpack sizes?
  Yes. Some airlines regularly check backpack size at the gate especially, budget airlines or on full flights. If it doesn’t fit under the seat or in the sizer, it will be considered as your main carry-on.
• Is a backpack a personal item on major airlines like United or JetBlue?
  Yes. Airlines such as United Airlines, JetBlue, American Airlines, and Delta Air Lines allow backpack as personal items as long as they fit under the seat.
• What happens if my backpack is too big to be a personal item?
  If your backpack is too large, it will usually be counted as a carry-on, and you may be charged or required to check the second bag.

People also ask:

• How strict are airlines about personal items?
• What happens if your personal item is too big?
• Can You Use A Backpack As Carry-on Luggage?
• Can a Backpack Be Checked Luggage?
• What can I use instead of a suitcase?
• Is a Duffle Bag a Personal Item?
• Can I Bring Two Backpacks On a Plane?

Gargie, is writer, traveler & a digital marketing specialist passionate about traveling and exploring new cultures. She is a savvy traveler who likes to pack light, testing various luggage brands and seeking out budget-friendly airline options. Gargie enjoys creating unique recipes when she’s not on the go.