Personal Item
43 x 33 x 20 cm
- Fare type
- Check ticket
- Weight
- Weight not listed
- Storage
- Under seat
JetBlue
B6Source checked
JetBlue carry-on and personal item size limits
Check published JetBlue baggage dimensions, fare notes, weight limits, source links, and last checked dates before you fly.
Quick baggage answer
JetBlue rules, visually summarized
Review the fare label, measurement limit, and official source date together. Your ticket controls the final allowance.
Check fare
Carry-on
55 x 35 x 22 cm
- Fare type
- Check ticket
- Weight
- Weight not listed
- Storage
- Overhead bin
Check your bag for JetBlue
Fare type notes
Some airlines include only a smaller underseat item with basic fares. Larger cabin bags can require a paid bundle, priority service, or eligible ticket.
How strict is JetBlue?
JetBlue publishes 55 x 35 x 22 cm for the cabin bag, and at the gate the sizer frame decides — not your tape measure. On low-cost fares, size checks are part of the business model, so a bag within 1 cm of any limit is a gamble. Hard shells can't squeeze and soft bags bulge once packed — leave yourself a margin.
Policy highlights
What to watch for on JetBlue
Review the fare label, measurement limit, and official source date together. Your ticket controls the final allowance.
dimensions
Underseat item
JetBlue's All fare families fare includes a personal item up to 43 x 33 x 20 cm, and it has to fit under the seat in front of you. JetBlue does not publish a weight limit for this bag — the size frame is what gets enforced.
dimensions
Overhead cabin bag
JetBlue's All fare families fare includes a carry-on up to 55 x 35 x 22 cm, and it goes in the overhead bin. JetBlue does not publish a weight limit for this bag — the size frame is what gets enforced.
fare
Fare and add-on check
JetBlue's cabin allowance changes with the ticket you buy (personal item: All fare families; carry-on: All fare families). Personal items must be placed beneath the seat in front; an approved pet carrier counts toward the personal item allowance.
source
Source snapshot
We last checked JetBlue's published limits against JetBlue carry-on bags on Aug 9, 2026. If you booked a different fare or your route changed since then, open the linked source for the current rules.
context
Airline context
JetBlue is a low-cost carrier based in United States. Like most low-cost carriers, the free allowance is usually just the underseat bag — the larger cabin bag is often a paid add-on, so match your bag to your exact fare before you get to the gate.
Travel extras
Pet, family, equipment, and battery rules
These cards summarize extra travel policies that often change by route, fare, aircraft, or country rules. Source-backed cards are marked with a last checked date; unverified cards stay in verify mode so the page does not invent policy details.
Verified extras
0/6
Pet friendly
Pet policy
Pet acceptance varies by route, aircraft, and animal type. Verify directly with the airline before booking.
- This specific extra has not been manually verified for this airline yet.
Last checked Aug 9, 2026
SourceFamily travel
Family and baby items
Baby gear and child seat allowances can vary by fare and airport handling rules. Check the airline source before travel.
- This specific extra has not been manually verified for this airline yet.
Last checked Aug 9, 2026
SourceInstruments
Musical instruments
Small instruments may count as cabin baggage; larger instruments often need a paid seat or checked handling.
- This specific extra has not been manually verified for this airline yet.
Last checked Aug 9, 2026
SourceSports gear
Sports equipment
Sports gear usually needs special baggage rules, packaging, and sometimes advance purchase.
- This specific extra has not been manually verified for this airline yet.
Last checked Aug 9, 2026
SourceBattery rules
Batteries and smart bags
Lithium batteries, power banks, and smart bags have safety limits. Verify watt-hour and removable-battery rules.
- This specific extra has not been manually verified for this airline yet.
Last checked Aug 9, 2026
SourceMobility care
Medical and mobility items
Medical devices and mobility aids often have separate handling rules. Contact the airline if assistance is required.
- This specific extra has not been manually verified for this airline yet.
Last checked Aug 9, 2026
SourcePersonal Item
43 x 33 x 20 cm
- Fare type
- All fare families
- Weight
- Weight not listed
- Storage
- Under seat
- Confidence
- high
Personal items must be placed beneath the seat in front; an approved pet carrier counts toward the personal item allowance.
Source checkedAug 9, 2026
Official JetBlue sourceCarry-on
55 x 35 x 22 cm
- Fare type
- All fare families
- Weight
- Weight not listed
- Storage
- Overhead bin
- Confidence
- high
Carry-on may be stored overhead or under the seat; partner airline itineraries may follow the first operating airline's rules.
Source checkedAug 9, 2026
Official JetBlue sourceAirline baggage comparison
Frequently asked
JetBlue's listed personal item dimensions are 43 x 33 x 20 cm for All fare families.
JetBlue's listed carry-on dimensions are 55 x 35 x 22 cm for All fare families.
JetBlue publishes 43 x 33 x 20 cm for the personal item, which rides under the seat in front of you, and 55 x 35 x 22 cm for the carry-on, which goes in the overhead bin. Your fare decides whether one or both are included.
No. CabinFit compares your measurements with the limits JetBlue published (JetBlue carry-on bags, last checked Aug 9, 2026). Gate staff, fare conditions, and aircraft changes can still affect the final decision — keep a margin and open the official page before you fly.
It depends on the item. This page carries 6 source-verified extras policies for JetBlue; each card above summarises one rule and links to the official source it was checked against.