jetBlue Carry-On Dimensions, Restricted Items & Liquid Policy

JetBlue’s carry-on rules are pretty simple once you focus on the two measurements that matter: your overhead carry-on size and your under-seat personal item size. The only other thing worth knowing up front is that Blue Basic now includes a carry-on on JetBlue-operated flights (so you’re not “personal-item-only” by default), but overhead bin space can still run tight—especially if you board late.

Below is the quick cheat sheet, then the details.

JetBlue carry-on rules at a glance

If you only read one section, make it this one—these are JetBlue’s published size limits, what to expect on weight, and how liquids work at security.

• Carry-on bag (overhead bin): 22″ L x 14″ W x 9″ H (including wheels and handles)
• Personal item (under the seat): 17″ L x 13″ W x 8″ H (must fit under the seat in front of you)
• Is a carry-on included? Yes—JetBlue includes one carry-on + one personal item, including on Blue Basic (space permitting)
• Carry-on weight limit: JetBlue does not publish a numeric carry-on weight limit, but you should be able to lift and stow your bag overhead without help
• Recommended carry-on bag: Travelpro VersaPack Spinner 20″ (it matches JetBlue’s published maximum dimensions exactly)
• Liquids: For U.S. departures, the TSA liquids rule applies (plain-English breakdown in my TSA liquids rule guide)

For quick comparisons across airlines, keep my carry-on size by airline guide bookmarked.

JetBlue carry-on bag size limit (overhead bin)

JetBlue’s maximum carry-on size is:

• 22″ L x 14″ W x 9″ H (including wheels and handles)

Practical tip: measure your bag fully packed, from the outside. Overstuffed front pockets and rigid “handle housings” are what usually push a bag from “fine” to “doesn’t fit.”

JetBlue personal item size limit (under-seat bag)

In addition to your carry-on, JetBlue allows one personal item that must fit under the seat in front of you.

• 17″ L x 13″ W x 8″ H

Good examples are a small backpack, laptop bag, tote, or purse—just keep it truly under-seat sized so you aren’t forced to consolidate at the gate.

If your bag is too big, you will have to check it (and possibly pay a fee), so it’s better always to know your bag size and the airline size restrictions in advance.

Carry-On Weight Limit

JetBlue does not publish a numeric carry-on weight limit. The rule is practical: your carry-on should be light enough that you can lift it into the overhead bin without assistance.

If you’re packing heavy items (dense shoes, books, camera gear), keep weight balanced and realistic. A bag can be within the size limit and still be a pain if it’s packed like a brick.

Does Blue Basic include a carry-on on JetBlue?

Yes. JetBlue updated Blue Basic so customers receive one carry-on bag plus one personal item on JetBlue-operated flights (space permitting). You’ll still want to be mindful of boarding order and overhead bin space—because “included” doesn’t always mean “there will definitely be room above your seat.”

Recommended Carry-On Bag For jetBlue

If you want one carry-on that’s a clean, no-drama match for JetBlue’s overhead-bin rules, I’d go with the Travelpro VersaPack Spinner 20″—JetBlue’s carry-on limit is 22″ x 14″ x 9″ (including wheels and handles), and the VersaPack’s overall dimensions are 22″ H x 14″ W x 9″ D, so it lines up with the published numbers exactly instead of relying on “close enough” judgment calls.

Manufacturer dimensions:

• Overall dimensions (includes wheels and carry handles): 22″ H x 14″ W x 9″ D
• Case dimensions (the main body): 19.75″ H x 13.25″ W x 8.5″ D

Practical packing tip: Keep it unexpanded and avoid overstuffing the front pockets. In real life, that’s what usually pushes an otherwise-compliant bag into “it doesn’t fit the sizer” territory.

jetBlue Carry-on Liquids Policy

For flights departing the U.S., liquids are governed by TSA screening rules at the security checkpoint.

TSA liquids rule (quick version)

• Containers must be 3.4 oz (100 mL) or less
• All containers must fit in one quart-size clear bag
• One bag per traveler

If you want the full “what counts as a liquid?” breakdown (plus common edge cases like peanut butter and gels), use my TSA liquids rule guide.

Exceptions to this rule are certain medications and baby food/child nourishment.

jetBlue Carry-On Pet Policy

jetBlue Airlines may not charge for your carry-on bag, but they will charge for your carry-on pet.

If you’re going to bring a pet on board with you, it must be able to fit in a small, ventilated pet carrier that fits under the seat in front of you.  Your pet carrier will count as a carry-on bag and cannot exceed 17″L x 12.5″ W x 8.5″H, and the combined weight of your pet and the carrier must not exceed 20 pounds.

Here are a couple of other things to be aware of:

• Only one pet per customer is allowed.
• A limited number of pets are allowed on each flight, so it’s best to book early.
• Carry-On pets are not allowed in Mint.
• Pets are not accepted on interline/code share bookings, regardless of booking source.
• Pets are not permitted on flights going to Jamaica, Barbados, St Lucia, the Cayman Islands, or Trinidad & Tobago.
• TrueBlue members earn 300 extra points per segment for adding a pet to their booking.

Recommended Pet Carrier for jetBlue

If you plan to bring your pet, make sure you follow TSA’s pet policy and have an approved Pet Carrier that conforms to jetBlue’s pet policy.

jetBlue Carry-On Fees

jetBlue does not charge a fee for carry-on baggage that meets their size requirements.  If your bag is too large and does not meet jetBlue’s carry-on restrictions, you may be charged a fee to gate check it.

Here is a link to jetBlue’s Carry-On page to make sure you have the most up-to-date information.

Related articles

1. How to Fly Standby on jetBlue
2. jetBlue Flight Delay and Cancellation Policy