JetBlue vs Southwest: Which Airline Is Better in 2026?

Pick Southwest if you need the flight to actually go and your plans might change. It canceled 1.05% of its flights in the first half of 2026 against 2.86% at JetBlue, drew about an eighth as many complaints per flight, and charges no fee to cancel even its cheapest fare.

Pick JetBlue if comfort matters more than certainty. It has free Wi-Fi for everyone on every plane, more legroom on most aircraft, a seatback screen at every seat, a lie-flat Mint cabin, and it is the bigger airline at Boston, New York JFK and Fort Lauderdale.

The two used to be easy to tell apart, and they are not anymore. Southwest now charges for checked bags and assigns seats, so most of what you will read about it online is out of date.

The figures below come from the Department of Transportation’s Air Travel Consumer Reports published in August and September 2026, plus each airline’s own fee, fare, loyalty and fleet pages as of October 2026. For how each stacks up against the big carriers, see our Southwest vs Delta comparison.

Reliability: on-time flights and cancellations

Southwest arrived on time on 74.76% of its flights between January and June 2026, fourth of the nine carriers the DOT ranks. JetBlue managed 71.02%, eighth of nine, ahead of only Spirit.

Cancellations show a wider gap. JetBlue canceled 3,389 of 118,580 scheduled flights, or 2.86%. Southwest canceled 7,187 of 686,476, or 1.05%, the second-best rate of the nine behind Allegiant.

Put another way, about 29 of every 1,000 JetBlue flights were canceled, against about 10 at Southwest. JetBlue’s rate also nearly tripled from 1.04% a year earlier, while Southwest’s barely moved from 0.95%.

July made it worse. JetBlue canceled 2,279 of 23,312 flights that month, 9.8%, and arrived on time only 55.7% of the time. Southwest canceled 1,419 of 124,994, or 1.1%, and arrived on time 68.0% of the time.

Geography explains part of it. JetBlue’s network leans on JFK and Boston, and in July a run of thunderstorms across the Northeast forced it to halt all JFK flights, Paddle Your Own Kanoo reported. Southwest spreads its flying across more than 100 airports.

Our explainer on why flights get delayed shows how one storm cell can unravel a whole day.

Complaints follow the operation. Travelers filed 1,700 complaints against JetBlue with the DOT in the first half of 2026 and 1,249 against Southwest, which flew almost six times as many flights. Per 100,000 flights, that is 1,434 for JetBlue and 182 for Southwest.

Edge: Southwest. It was more punctual, canceled about a third as often and drew about an eighth as many complaints per flight.

Checked bags: Southwest’s free bags are gone

Southwest charges $45 for a first checked bag and $55 for a second on reservations ticketed or changed on or after April 9, 2026. It started charging for checked bags on reservations made from May 28, 2025.

JetBlue prices bags by season. Paid at least 24 hours before departure, a first bag is $45 and a second $59 on off-peak dates, rising to $49 and $69 on peak dates such as Thanksgiving, the winter holidays and the summer rush. Adding them later costs up to $10 more per bag.

For a family of four checking one bag each on a round trip, that is $360 on Southwest and $360 on JetBlue off-peak, or $392 on a peak date. Two bags each widens the gap: $800 on Southwest against $832 off-peak and $944 peak on JetBlue.

Once the bag is checked, the two are almost identical. JetBlue mishandled 0.31 of every 100 bags in the first half of 2026 and Southwest 0.32, second and third best of nine. Southwest did better with wheelchairs and scooters, mishandling 1.17 per 100 against 1.36 at JetBlue.

Both still include a full-size carry-on on every fare. Southwest’s limit is 24 by 16 by 10 inches, slightly larger than JetBlue’s 22 by 14 by 9.

Edge: Southwest. Its fees are the same as JetBlue’s off-peak and lower on peak dates and for a second bag, and its bigger carry-on limit helps you avoid checking at all.

The cheapest fare: Main Base vs Basic

JetBlue’s Main Base fare includes a carry-on and a personal item. Seats are assigned before departure unless you pay to choose, and a change or cancellation costs $150 per person, returned as travel credit valid for 12 months.

Southwest’s Basic fare has no cancel fee. Cancel at least 10 minutes before departure and the full amount comes back as a flight credit, although Basic credits expire after 6 months rather than 12. You cannot change a Basic fare without upgrading it, and seats are assigned at check-in.

The difference is real money. A family of four that cancels a Main Base trip loses $600 in fees before any credit comes back. On Southwest Basic, the same family keeps the whole fare as credit.

Above the base fares, both drop change fees. JetBlue’s standard Main fare and Southwest’s Choice fare can be changed for the fare difference only.

Edge: Southwest. Its cheapest ticket can be canceled for free; JetBlue’s costs $150 a person.

Seats, legroom and premium cabins

JetBlue built its name on legroom. Its classic all-economy Airbus A320s have offered 34 inches of seat pitch, and its other A320s and Airbus A220-300s about 32 to 34 inches, according to Paddle Your Own Kanoo.

Southwest went the other way to make room for its Extra Legroom rows. Standard pitch on its 737-800 and 737 MAX 8 dropped from 32 inches to 31, The Points Guy reported. On the 737-700, it is removing six seats instead.

Southwest’s open seating is over, too. Seats have been assigned on flights since January 27, 2026, with eight boarding groups in place of the old A, B and C. Extra Legroom seats at the front and in the exit rows come with the Choice Extra fare or cost extra.

JetBlue’s lead is shrinking as well. To fit BlueFirst, its new domestic first class, it is reconfiguring main cabin rows, and its crews no longer tell passengers they have the most legroom in coach. BlueFirst offers wide recliners with up to 7 inches more legroom and up to 5 inches of recline, and our BlueFirst first look has the details.

Above that sits Mint, JetBlue’s lie-flat cabin on 58 of its 296 aircraft, including its long-range A321neoLRs. Southwest has no first class or lie-flat seat at all.

Edge: JetBlue. More legroom on unconverted planes and two premium cabins Southwest cannot match, though the gap closes as BlueFirst spreads.

Wi-Fi and entertainment

Every JetBlue aircraft has free Fly-Fi, and anyone can connect after a short ad, with no loyalty login. Some flights outside the continental US, Europe and the UK excepted, may lose service. Its entertainment library plays on seatback screens at every seat.

Southwest’s Wi-Fi is free only to Rapid Rewards members. Otherwise it costs $8 per device, on select aircraft. Entertainment streams to your own device instead: free movies, TV series and live TV on Wi-Fi-equipped planes.

Southwest is fitting Starlink to its fleet and expects every aircraft to have it by fall 2027.

Edge: JetBlue. Free Wi-Fi for every passenger plus a screen in every seatback beats Wi-Fi for members only and bring-your-own-screen.

Where they fly, and where they compete

Southwest served 106 US airports in July 2026 to JetBlue’s 71. It flies 803 Boeing 737s, as of September 30, 2026, against JetBlue’s 296 Airbus jets, which averaged 12 years old at the end of June.

The two rarely meet head-on. In July 2026, JetBlue carried 31.3% of arrivals at JFK and Southwest none. Southwest carried 94.1% at Chicago Midway, 76.2% at Baltimore/Washington and 51.7% at Las Vegas, where JetBlue is a bit player.

In New York the choice is often made for you: JetBlue flies from JFK, while Southwest’s New York service is at LaGuardia, where it had 7.1% of July arrivals. Our JFK vs LaGuardia guide covers which is easier to reach.

Abroad, JetBlue goes further. It flies across the Caribbean and Latin America, with Cali its fourth city in Colombia since October 2026, and across the Atlantic to Europe, while Southwest’s international network covers Mexico, Central America and the Caribbean.

Edge: Southwest. Unless you live near Boston, JFK or Fort Lauderdale, or are going to Europe, Southwest reaches more of the country.

Loyalty and status

JetBlue’s Mosaic 1 takes 50 tiles, and every $100 spent on JetBlue flights, many extras and fees included, earns one, so $5,000 a year gets you there. Mosaic 1 brings a free checked bag and Mosaic boarding.

Southwest’s A-List takes 20 qualifying one-way flights or 35,000 tier qualifying points in a calendar year. It brings Group 1 boarding, a free first bag and a 25% points bonus, so frequent short, cheap trips favor Southwest while fewer, pricier ones favor JetBlue.

Southwest’s standout perk is the Companion Pass. Fly 100 qualifying one-way flights or earn 135,000 qualifying points in a year, and one chosen person flies with you free of airline charges, paying taxes and fees from $5.60 one-way, for the rest of that year and all of the next.

Both programs are widening. JetBlue’s Blue Sky partnership lets TrueBlue members earn and use points on United, and Mosaic members now get perks such as a free checked bag and priority boarding there too.

Southwest is renaming its tiers on January 1, 2027: A-List becomes Silver, A-List Preferred becomes Gold, and a new Platinum tier adds unlimited Companion Pass trips. Points will also work on Icelandair, China Airlines and Etihad from spring 2027.

“As our Members engage more with Southwest, they’ve told us they want Rapid Rewards to reward them in more meaningful ways, whether they’re working toward status or using the points they’ve earned.”

Nandika Suri, Vice President of Rapid Rewards at Southwest Airlines, October 2026

Edge: Even. JetBlue rewards spending and opens United’s network; Southwest rewards flying often and has the Companion Pass.

Who should pick which

If neither fits, our JetBlue vs United comparison and our ranking of the best US airlines to fly put both in a wider field.