Which has the bigger carry-on allowance, JetBlue or United?

JetBlue: 22 × 14 × 9 in (56 × 36 × 23 cm). United: 22 × 14 × 9 in (56 × 36 × 23 cm).

Which is more reliable, JetBlue or United?

In 2025 JetBlue arrived on time 72.3% of the time (1.7% cancelled) and United 77.7% (0.8% cancelled), according to U.S. DOT data.

Which has more legroom, JetBlue or United?

Standard economy legroom is about 32 in on JetBlue and about 30 in on United. Both sell extra-legroom seats.

Which cancels fewer flights, JetBlue or United?

In 2025 JetBlue cancelled 1.7% of its flights and United 0.8%, so United had the edge (U.S. DOT data).

Are JetBlue and United partners?

They aren't in the same alliance (JetBlue: none; United: Star Alliance), so miles and status generally don't transfer between them.

B6 vs UA · 2026 comparison

JetBlue vs United

Q: Do JetBlue and United include a carry-on on basic economy?

JetBlue: Main Base (Blue Basic until July 27, 2026) includes a carry-on and a personal item. Checked bags cost extra, and changes cost a fee. United: Basic Economy includes only a personal item on most U.S. and short-haul flights. A full-size carry-on is allowed on transatlantic, transpacific and South America routes, and for MileagePlus Premier members and eligible United cardmembers.

Q: Which has better Wi-Fi, JetBlue or United?

JetBlue: Free Fly-Fi for everyone, no login needed. United: Free for MileagePlus members on Starlink-equipped planes (fleetwide by end of 2027); otherwise paid.

JetBlue wins on a carry-on on its cheapest fare, a bigger personal item, cheaper checked bags, more legroom and better Wi-Fi access; United wins on a better on-time record and fewer cancellations. Here's how they compare on bags, fees, comfort, reliability and loyalty.

Verified Oct 17, 2026By Steven MoHow we check Report a correction

JetBlue

Wins 5 categories

A carry-on on its cheapest fare
A bigger personal item
Cheaper checked bags
More legroom
Better Wi-Fi access

United

Wins 2 categories

A better on-time record
Fewer cancellations

Quick verdict

JetBlue wins on a carry-on on its cheapest fare, a bigger personal item, cheaper checked bags, more legroom and better Wi-Fi access; United wins on a better on-time record and fewer cancellations. Check the cheapest fare's bag rules before you compare prices.

Carry-on size: JetBlue: 22 × 14 × 9 in · United: 22 × 14 × 9 in
Carry-on on the cheapest fare: JetBlue: Included on every fare · United: Not on some basic fares
First checked bag (regular economy): JetBlue: $39–$49 · United: $45
Standard economy legroom: JetBlue: About 32 in · United: About 30 in
Wi-Fi: JetBlue: Free for everyone · United: Free on some planes
On-time arrivals (2025): JetBlue: 72.3% · United: 77.7%

Side by side

	JetBlue	United
Bags
Carry-on size	22 × 14 × 9 in	22 × 14 × 9 in
Carry-on on the cheapest fare	Included on every fare	Not on some basic fares
Carry-on weight limit	None published	None published
Personal item	17 × 13 × 8 in	17 × 10 × 9 in
First checked bag (regular economy)	$39–$49	$45
Comfort
Standard economy legroom	About 32 in	About 30 in
Wi-Fi	Free for everyone	Free on some planes
Reliability
On-time arrivals (2025)	72.3%	77.7%
Flights cancelled (2025)	1.7%	0.8%
Network
Alliance	None	Star Alliance
Loyalty program	TrueBlue	MileagePlus
Main hubs	JFK, BOS, FLL, MCO, SJU	ORD, DEN, IAH, EWR, SFO

Highlighted values are better for travelers. Fees are for U.S. domestic economy flights; on-time data is 2025 U.S. DOT figures for each airline's own flights.

Bags and fees

Both airlines allow a carry-on up to 22 × 14 × 9 in (56 × 36 × 23 cm).

JetBlue includes it on every fare, while United's Basic Economy can be personal-item only.

Neither publishes a carry-on weight limit.

Personal items: 17 × 13 × 8 in (43 × 33 × 20 cm) on JetBlue, and 17 × 10 × 9 in (43 × 25 × 23 cm) on United.

A first checked bag on JetBlue costs $39–$49 on U.S., Caribbean, Latin America and Canada flights, and a first checked bag on United costs $45 on U.S., Canada, Mexico, Central America and Caribbean flights.

Basic economy

JetBlue (Main Base): Main Base (Blue Basic until July 27, 2026) includes a carry-on and a personal item. Checked bags cost extra, and changes cost a fee.

United (Basic Economy): Basic Economy includes only a personal item on most U.S. and short-haul flights. A full-size carry-on is allowed on transatlantic, transpacific and South America routes, and for MileagePlus Premier members and eligible United cardmembers.

Seats and Wi-Fi

JetBlue gives about 32 in of legroom in standard economy and United about 30 in, an edge for JetBlue. JetBlue: About 32 in in Core, the most of the big U.S. airlines. United: About 30 in in Economy; 34 in or more in Economy Plus.

Wi-Fi on JetBlue: Free Fly-Fi for everyone, no login needed. On United: Free for MileagePlus members on Starlink-equipped planes (fleetwide by end of 2027); otherwise paid.

On-time performance

In 2025, JetBlue landed 72.3% of its flights on time and cancelled 1.7%; United landed 77.7% on time and cancelled 0.8%. That makes United the more punctual of the two. The figures come from the U.S. DOT and count each airline's own flights, not regional partners.

Loyalty and where they fly

JetBlue is not in an alliance and United is in Star Alliance.

Loyalty programs: TrueBlue (JetBlue) and MileagePlus (United).

JetBlue's main hubs are New York (JFK), Boston (BOS), Fort Lauderdale (FLL), Orlando (MCO), San Juan (SJU). United's are Chicago (ORD), Denver (DEN), Houston (IAH), Newark (EWR), San Francisco (SFO). The best choice often comes down to which airline flies nonstop from your airport.

Which should you book?

Choose JetBlue if you want…

a carry-on on its cheapest fare
a bigger personal item
cheaper checked bags
more legroom
better Wi-Fi access
nonstops from JFK, BOS, FLL

Choose United if you want…

a better on-time record
fewer cancellations
to earn and use Star Alliance miles and status
nonstops from ORD, DEN, IAH

On a route both fly, the cheaper ticket isn't always the cheaper trip: add the bags you'll actually bring, and check the fare rules before you book.