JetBlue vs Southwest to St. Maarten — Which Is the Better Deal in 2026?

For most of its history, flying to St. Maarten from Florida meant one carrier dominated: Spirit out of Fort Lauderdale for the budget end, American out of Miami for everyone else. Spirit is now gone — the carrier shut down entirely, leaving a gap in the Fort Lauderdale market. In its place, two carriers have stepped up in the space of five months: JetBlue launched nonstop FLL-SXM service in December 2025, and Southwest launched daily MCO-SXM service on April 7, 2026. Florida travelers now have two genuinely different budget-friendly options to reach the same island from two different airports — and nobody has yet written the honest comparison that trip planners actually need.

Here it is.

Quick Facts

Airport: JetBlue departs from Fort Lauderdale-Hollywood (FLL); Southwest departs from Orlando International (MCO).

Launch date: JetBlue launched in December 2025; Southwest launched April 7, 2026.

Frequency: JetBlue currently operates 4x weekly, scaling to daily service from July 9, 2026. Southwest runs daily from MCO and Saturday-only from Baltimore/Washington (BWI).

Flight time: JetBlue is just over 3 hours; Southwest is approximately 3 hours 10 minutes.

Base fare: JetBlue starts from approximately $102 one-way; Southwest starts from approximately $160 one-way.

Year-round service: Both carriers operate year-round on the MCO and FLL routes respectively.

Checked bags: JetBlue's Blue Basic fare includes no checked bags -- fees apply. Southwest includes 2 free checked bags per person at every fare class.

Seat assignment: JetBlue offers standard assigned seating. Southwest is transitioning from its historic open-seating model to assigned seating in 2026.

Seatback screens: JetBlue has free live TV and movies at every seat. Southwest has no seatback screens -- bring your own device.

WiFi: JetBlue offers free WiFi for all passengers. Southwest charges for WiFi.

Loyalty programme: JetBlue earns and redeems TrueBlue points; Southwest uses Rapid Rewards.

Domestic connections: JetBlue's network focuses on BOS, JFK, and FLL. Southwest connects through MCO to 40+ US cities.

Spirit replacement on FLL: JetBlue is the direct replacement for Spirit's now-defunct FLL-SXM route. Southwest operates from MCO and does not serve the FLL corridor.

Fare Reality

JetBlue's headline FLL-SXM fare of $102 one-way is real and regularly available. Southwest's lowest MCO-SXM fares have run at $160 one-way since launch. On the surface, JetBlue is cheaper by $58 per direction — which sounds like the comparison ends there.

"JetBlue wins for carry-on-only travelers by a meaningful margin. Southwest wins from the first checked bag."

It doesn't, because the fare is not the trip cost:

JetBlue's $102 is Blue Basic — the most restrictive fare tier with no changes, no refunds, and most importantly, no included checked bags. Checked bags on JetBlue Blue Basic cost $40-45 per bag each way. A traveler with one checked bag each direction on JetBlue Blue Basic at $102 is actually paying $182-192 per person one-way before taxes. Two bags puts that at $222-232.

Southwest's $160 includes two free checked bags per person in every direction at every fare class. A traveler with two checked bags on Southwest pays $160 total one-way per person. No bag fee calculation. No fare class fine print on luggage.

The break-even math:

No checked bags: JetBlue runs approximately $102 + taxes one-way; Southwest runs approximately $160 + taxes. JetBlue wins by a meaningful margin for carry-on-only travelers.

1 checked bag: JetBlue climbs to approximately $142-147 + taxes once the bag fee is added. Southwest stays at $160 + taxes with the bag included free. The gap narrows to roughly $13-18 -- close enough that Southwest's no-change-fee flexibility and better domestic network often tips the decision.

2 checked bags: JetBlue reaches approximately $182-192 + taxes with two bags factored in. Southwest remains at $160 + taxes. Southwest is now the cheaper option by $22-32 per person per direction -- and for a family of four traveling round trip, that difference compounds into several hundred dollars in total savings.

Frequency Expansion

JetBlue launched at 4 flights per week in December 2025 — Tuesday, Thursday, Saturday, and Sunday. That was a meaningful constraint: you couldn't depart on a Monday, Wednesday, or Friday, which limited itinerary flexibility for the large share of travelers who want to maximise weekdays away without burning weekend time.

"From July 9 onward, JetBlue operates daily FLL-SXM departures year-round — matching Southwest's MCO frequency."

That changes on July 9, 2026. JetBlue is adding three more weekly flights from Fort Lauderdale to St. Maarten, bringing the schedule to daily service. From July 9 onward, JetBlue operates daily FLL-SXM departures year-round — matching Southwest's MCO frequency and removing the scheduling constraint that was the route's main practical limitation since launch.

Southwest's MCO schedule remains daily with a consistent 10:30am departure (11:15am Sundays). The two carriers now offer equivalent daily frequency from their respective Florida gateways, making the comparison a genuine product-and-airport decision rather than a scheduling-driven one.

Airport Choice

For Florida-based travelers, the choice of airport often determines the airline rather than the other way around. The FLL vs MCO question has a clear answer depending on where you live:

FLL is right if:

• You're based in Broward County, Miami-Dade, or Palm Beach — Fort Lauderdale is your natural gateway and the 30-minute drive to FLL versus 3+ hours to MCO is not a comparison

• You're connecting from Miami (MIA) via ground transfer to FLL; the two airports are 35 minutes apart, making FLL accessible to Miami residents who want JetBlue's product

• You're using JetBlue's Boston (BOS) or JFK connecting network; JetBlue has a far stronger northeast US presence than Southwest

MCO is right if:

• You're based in Orlando, Central Florida, or the I-4 corridor

• You're using Southwest's domestic network to connect from a non-Florida city; Southwest's 40+ city network through MCO is its strongest argument for non-Florida travelers

• You want the Disney/theme park convergence — MCO is the world's most connected vacation gateway and Southwest's MCO hub means connecting from virtually anywhere in the US on Southwest metal

In-Flight Experience

Southwest and JetBlue are both budget-friendly carriers but their in-flight products are genuinely different, and on a 3-hour daytime Caribbean flight those differences matter more than on a 45-minute domestic hop:

JetBlue:

• Seatback screens with free live TV and movies at every seat — one of the best in-flight entertainment packages in US aviation at any fare class

• Free high-speed WiFi for all passengers on all flights

• More legroom in standard seats than most US carriers (Mint suites on some routes, but not SXM)

• Assigned seating, including premium leg-room Even More Space seats available for purchase

Southwest:

• No seatback screens; entertainment requires your own device

• Paid WiFi

• Moving to assigned seating in 2026 (transitioning from its historic open-seating model)

• More limited in-flight entertainment versus JetBlue

"For a 3-hour flight, JetBlue's free seatback TV and WiFi is a meaningful quality advantage."

For a 3-hour flight, JetBlue's free seatback TV and WiFi is a meaningful quality advantage — particularly for families with children where screen access is not optional. Southwest's product is perfectly comfortable for the flight duration but offers nothing comparable on entertainment. If in-flight experience is a priority and you're travelling carry-on only or with one bag, JetBlue's product-at-price-point is strong.

Loyalty Programmes

Both carriers have well-established loyalty programmes with different earning and redemption structures:

JetBlue TrueBlue:

• Points earned on base fare spent (not miles flown)

• Mosaic elite tiers (1, 2, 3, 4) with benefits including free Even More Space upgrades, same-day changes, and bonus points

• TrueBlue points can be redeemed for any seat on any JetBlue flight including the FLL-SXM route

• JetBlue's northeast US focus means TrueBlue members concentrated in BOS, JFK, and the northeastern corridor accumulate points quickly through JetBlue's domestic routes

Southwest Rapid Rewards:

• Points earned per dollar spent on base fares with tier multipliers

• A-List and A-List Preferred elite tiers with bonus points, priority boarding, and complimentary upgrades

• The Companion Pass — Southwest's signature benefit, allowing one designated companion to fly free (fees only) on every flight for the calendar year when you earn 135,000 qualifying points — is one of the highest-value loyalty benefits in US aviation

• Rapid Rewards redemptions are available for the MCO-SXM route from launch

"If you or a partner hold or are targeting a Southwest Companion Pass, adding a new international Caribbean route to the redemption network meaningfully increases the value of holding the pass."

The Companion Pass angle is specific to Southwest: If you or a partner hold or are targeting a Southwest Companion Pass, adding a new international Caribbean route to the redemption network meaningfully increases the value of holding the pass. Flying MCO-SXM with a Companion Pass traveller effectively halves the flight cost of the trip.

Who Should Book JetBlue

• South Florida residents (Broward, Miami-Dade, Palm Beach) for whom FLL is a natural gateway; JetBlue's FLL-SXM nonstop is the right choice on geography alone

• Northeast US travelers connecting through JetBlue's BOS or JFK hubs to reach FLL-SXM on a single carrier; JetBlue's northeast presence is meaningfully stronger than Southwest's

• Carry-on only travelers at the $102 Blue Basic fare with no bag fees and a better in-flight entertainment product; the total cost advantage over Southwest is real in this scenario

• Travelers who prioritise in-flight entertainment on a 3-hour flight; JetBlue's free seatback TV and WiFi is a genuine product advantage over Southwest's BYOD model

• TrueBlue Mosaic members with elite status benefits on the FLL-SXM route

Who Should Book Southwest

• Central Florida and non-Florida travelers connecting via MCO from Southwest's 40+ city domestic network; the single-carrier booking, single baggage check, and Rapid Rewards earning across the full itinerary is a clean advantage

• Families and travelers with checked bags; two free checked bags per person makes Southwest cheaper than JetBlue from the first bag onward, and for a family of four with luggage the savings can reach $300-600 round trip compared to JetBlue Blue Basic

• Hurricane-season travelers who want no-change-fee flexibility; Southwest's full no-change-fee policy (fare difference only) covers the entire MCO-SXM routing including connecting domestic legs — meaningful for anyone booking summer or fall trips in the Atlantic storm window

• Southwest Companion Pass holders; the MCO-SXM route expands the Companion Pass network to include St. Maarten, effectively making one of the two flights free

• Rapid Rewards members accumulating toward a Companion Pass or nearing a redemption threshold; a new Caribbean route adds a high-value destination to the redemption catalogue

Booking Strategy

The most sophisticated approach to the JetBlue vs Southwest question is not choosing one and committing — it's monitoring both and booking the better deal for your specific travel dates:

1. Set fare alerts on both routes — Google Flights, Hopper, or the respective airline apps allow fare tracking; set alerts for your specific travel window on both FLL-SXM (JetBlue) and MCO-SXM (Southwest)

2. Calculate total trip cost, not just base fare — factor bags, your home-to-airport drive distance, and any connecting domestic legs before making the comparison

3. Watch JetBlue's post-Spirit pricing — with Spirit gone from FLL, JetBlue has less price competition on that specific corridor; fares may drift upward as the route matures. Southwest's MCO pricing provides market competition but not direct route competition

4. Check award availability on both programmes — a Rapid Rewards or TrueBlue redemption for the same travel dates may clearly favour one carrier over the other on points value; check both before paying cash

Spirit-Shaped Gap

The exit of Spirit Airlines from the market is the context that makes this JetBlue vs Southwest comparison more than an academic exercise. Spirit was operating FLL-SXM at fares as low as $88 one-way at its lowest — keeping both JetBlue and American's Fort Lauderdale-area pricing disciplined through direct competition.

"With Spirit gone, the competitive pressure on the Fort Lauderdale corridor has narrowed: JetBlue is now the only nonstop from FLL."

With Spirit gone, the competitive pressure on the Fort Lauderdale corridor has narrowed: JetBlue is now the only nonstop from FLL, and American operates from MIA rather than FLL. The FLL-SXM route has lost its lowest-cost operator. Southwest's MCO service provides genuine competition to the broader Florida-to-St. Maarten market but operates from a geographically separate gateway that doesn't directly discipline JetBlue's FLL fares.

FAQ

Which is cheaper, JetBlue or Southwest to St. Maarten?
JetBlue's base fare ($102 one-way from FLL) is lower than Southwest's ($160 from MCO), but JetBlue's Blue Basic fare includes no checked bags. Southwest includes two free checked bags per person. Travelers with at least one checked bag will often pay less in total on Southwest; carry-on-only travelers save more on JetBlue.

Does JetBlue or Southwest fly to St. Maarten from Fort Lauderdale?
JetBlue operates FLL-SXM; Southwest operates from MCO (Orlando), not Fort Lauderdale. These are different Florida airports serving different geographic catchment areas.

When did JetBlue start flying to St. Maarten?
December 2025, at 4 flights per week from FLL. JetBlue is expanding to daily FLL-SXM service from July 9, 2026.

When did Southwest start flying to St. Maarten?
April 7, 2026 from Orlando (MCO), daily. Saturday service from Baltimore/Washington (BWI) began April 11, 2026.

Does JetBlue have better seats than Southwest on the St. Maarten route?
JetBlue offers assigned seating, free seatback TV and movies, and free WiFi. Southwest is transitioning to assigned seating in 2026 but has no seatback screens and charges for WiFi. For a 3-hour daytime flight, JetBlue's in-flight product is meaningfully better.

Can I use Rapid Rewards points to fly Southwest to St. Maarten?
Yes — the MCO-SXM and BWI-SXM routes are fully available for Rapid Rewards point redemptions from launch.

Is Spirit still flying to St. Maarten from Fort Lauderdale?
No. Spirit Airlines has shut down entirely and is no longer operating any routes. JetBlue is now the only nonstop carrier between Fort Lauderdale and St. Maarten.

The Honest Verdict

JetBlue wins on price if you pack light and sit in FLL's catchment area. It also wins on the in-flight product — free seatback TV and WiFi on a 3-hour flight is a real differentiator, not a minor perk. Southwest wins on total trip cost for anyone checking bags, on scheduling flexibility through the no-change-fee policy, on network breadth for non-Florida travelers connecting through MCO, and on the Companion Pass value play. Neither is wrong. The right answer depends on where you live in Florida, how you pack, and which loyalty programme your travel habits have fed for the last three years.

What both represent, together, is the best air access St. Maarten has ever had from the American market — two budget-aware carriers on daily Florida nonstops, in a competitive environment where Spirit's absence will keep both honest. For travelers who have been putting off an SXM trip on cost or convenience grounds, 2026 is the year the excuses ran out.