JetBlue handles carry-on bags in various ways based on the type of ticket you purchase. Some tickets include a carry on and a personal item while the lowest fare permits a small item in the seat under it. Knowing the rules will spare you additional fees and make travel easier. To know more you can connect with JetBlue at 1-800-538-2583 or you can simply reach out to us SkyTravelFly at 1-888-415-1531 for further assistance. Read this JetBlue's carry-on luggage guide to know what JetBlue offers in their baggage allowance.

How Do I Avoid a Carry-on Fee on JetBlue?

To avoid a JetBlue carry-on fee is a matter of selecting the proper fare or taking advantage of exceptions.

Blue Basic: JetBlue's cheapest fare does not permit a full-sized carry-on. You can only have one personal item that goes underneath the seat in front of you. If you have a larger bag, it will have to be gate-checked for a fee.

Blue, Blue Plus, Blue Extra and Mint: These prices come with one carry-on bag and one personal item.

Mosaic members: Even on a Blue Basic booking, Mosaic customers can bring a carry-on bag.

Ways to avoid fees:

Book a fare with carry-on included – Even a Blue fare (just one step above Basic) includes it.

Travel light – If you can get your belongings into a personal item only, you won't have to pay.

Use loyalty benefits – Mosaic membership or some JetBlue credit card benefits might pay for your bag requirements.

Gate-check fees for too big or too many bags can be expensive, so it's a good idea to check your JetBlue carry-on allowance before you get to the airport.

Can I carry on and pack a backpack on JetBlue?

Yes, but only on some fares.

Blue, Blue Plus, Blue Extra and Mint fares: You are allowed one full-size carry-on bag for the overhead bin together with one personal item like a backpack, laptop bag or purse.

Blue Basic fare: Only one personal item, such as a carry-on bag that fits under the seat, is permitted. Having a full-size carry-on and a backpack on this fare will require the larger bag to be checked for a fee.

SkyTravelFly notes that JetBlue staff can be diligent about this particularly during full flights. Large backpacks might be marked as a carry-on rather than an in-person item. To prevent problems, make your backpack small enough to fit comfortably under the seat.

What is the Size of a Carry-on for International Flights?

JetBlue applies the same size restrictions to domestic and international flights:

Carry-on bag size: 22" L x 14" W x 9" H, handles and wheels included.

Personal item size: 17" L x 13" W x 8" H.

Weight restriction: None, but you should have to lift it into the overhead bin yourself.

For London routes, JetBlue is an exception — both a carry-on and personal item are permitted with every type of fare, including Blue Basic. This is a useful perk for international flyers who prefer not to check bags.

SkyTravelFly also mentions that while JetBlue does not usually weigh carry-on bags, they do enforce JetBlue carry-on baggage size rules at the gate. Using a bag that meets the official measurements is the safest way to avoid surprises.

Final Thoughts

JetBlue carry on rules are straightforward but vary based on fare type. If you want both a carry on and a backpack, avoid Blue Basic unless you are flying to or from London or you are a Mosaic member. Always check the size of your bag before heading to the airport as JetBlue can be strict with enforcement at the gate. Need more help? Call SkyTravelFly or JetBlue at 1-888-415-1531 or 1-800-538-2583.

With some planning ahead, you can bring your bags on board with you and avoid the extra cost and have a more peaceful airport experience.