Do all airlines include carry-on?

Depending on your fare type, most domestic airlines generally permit travelers to carry on two items — one that fits underneath the seat in front of you, generally labeled as a personal item, and a second item that fits overhead. However, you must meet certain dimension thresholds, which vary by airline.



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1. Fly Southwest whenever you can. It's the only major carrier in the U.S. that doesn't charge for checked or carry-on bags. Delta, American and Alaska, meanwhile, never charge for a carry-on.

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A backpack can be your carry on if it meets your airline's carry on size limits. A personal item is a smaller, secondary bag, which you'll stow under the seat in front of you. Read Carry Ons vs. Personal Items for more on the differences between the two.

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At least for now, no U.S. airline charges for a personal item, which can be as large as a backpack. In addition, Delta, American and Alaska don't ever charge for a carry-on.

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You're not allowed a full-sized carry-on bag unless you're a MileagePlus Premier member or companion traveling on the same reservation, primary cardmember of a qualifying MileagePlus credit card or Star Alliance Gold member.

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Charging for carry-on bags helps lower ticket prices by reducing the aircraft's load and saving fuel. Many airlines, including Spirit and Frontier, charge high fees for carry-on bags at the gate, increasing the cost of flying on these carriers.

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For most trips you can only bring one personal item when you're flying in Basic Economy. You can't bring a carry-on bag unless you're flying to South America, across the Atlantic or across the Pacific. All other bags have to be checked.

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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 offer a free carry-on unless they're a budget airline like Spirit or Allegiant. Checked baggage: Larger, checked luggage is stored in the hold of the plane, and you won't have access to it during your flight.

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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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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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Most domestic airlines specify 22 inches by 14 inches by 9 inches as the maximum size for carry-on baggage. There are some exceptions as listed below in our airline specific summary. Maximum dimensions include the wheels and the handles of your bag, so factor those into your measurements when assessing your bag.

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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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Solid food items (not liquids or gels) can be transported in either your carry-on or checked baggage. TSA officers may instruct travelers to separate items from carry-on bags such as foods, powders, and any materials that can clutter bags and obstruct clear images on the X-ray machine.

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Delta Air Lines passengers are permitted to bring onboard the aircraft one piece of cabin baggage, plus one personal item, such as a briefcase, camera bag or small backpack. Your carry-on baggage should fit into the overhead bins or under the seat in front of you.

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Most airlines allow backpacks as carry-ons, but size and weight restrictions vary depending on the carrier. Typically, the bag must be within the cabin baggage dimensions of around 22 x 14 x 9 inches (56 x 36 x 22 cm), commonly considered the standard size for carry-on.

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If you're wondering whether you can use a backpack as a carry-on for air travel, the answer is a resounding yes! In addition to being a practical option for air travel, backpacks can be an excellent choice for those seeking convenience and ease during their journey.

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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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