$94 Find Cheap Flights from Boston to Saint Martin Island

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Saint Martin Island departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Saint Martin Island

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Saint Martin Island.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Saint Martin Island.
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Flight Deals

Book Cheap Boston to Saint Martin Island Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Saint Martin Island that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Saint Martin Island

Mon, May 18 - Thu, May 21
United Airlines Logo
6:00 am - 12:33 pm
BOS
-
SXM
6h 33m
1 stop
United Airlines Logo
1:35 pm - 8:17 am
SXM
-
BOS
18h 42m
1 stop
$297United Airlines
Mon, Jul 6 - Fri, Jul 10
United Airlines Logo
8:00 am - 2:43 pm
BOS
-
SXM
6h 43m
1 stop
United Airlines Logo
3:50 pm - 11:59 pm
SXM
-
BOS
8h 09m
1 stop
$301United Airlines
Sat, May 30 - Sat, Jun 6
Delta Logo
6:00 am - 2:06 pm
BOS
-
SXM
8h 06m
1 stop
Delta Logo
3:45 pm - 7:24 am
SXM
-
BOS
15h 39m
1 stop
$305Delta
Mon, Jul 6 - Fri, Jul 10
United Airlines Logo
6:05 am - 2:43 pm
BOS
-
SXM
8h 38m
1 stop
United Airlines Logo
3:50 pm - 1:32 pm
SXM
-
BOS
21h 42m
2 stops
$306United Airlines
Sun, May 31 - Thu, Jun 4
United Airlines Logo
5:45 am - 12:33 pm
BOS
-
SXM
6h 48m
1 stop
United Airlines Logo
1:35 pm - 8:17 am
SXM
-
BOS
18h 42m
1 stop
$307United Airlines
Wed, Jun 3 - Wed, Jun 10
United Airlines Logo
5:45 am - 12:33 pm
BOS
-
SXM
6h 48m
1 stop
United Airlines Logo
3:50 pm - 9:53 am
SXM
-
BOS
18h 03m
2 stops
$310United Airlines
Sun, May 31 - Thu, Jun 4
United Airlines Logo
6:00 am - 2:43 pm
BOS
-
SXM
8h 43m
1 stop
United Airlines Logo
1:35 pm - 8:17 am
SXM
-
BOS
18h 42m
1 stop
$321United Airlines
Sat, Jun 6 - Wed, Jun 10
United Airlines Logo
8:26 pm - 12:33 pm
BOS
-
SXM
16h 07m
2 stops
United Airlines Logo
3:50 pm - 11:59 pm
SXM
-
BOS
8h 09m
1 stop
$326United Airlines
Tue, Jun 9 - Wed, Jun 17
United Airlines Logo
6:00 am - 2:43 pm
BOS
-
SXM
8h 43m
1 stop
United Airlines Logo
3:50 pm - 11:59 pm
SXM
-
BOS
8h 09m
1 stop
$333United Airlines
Mon, Jul 13 - Thu, Jul 16
United Airlines Logo
5:45 am - 12:33 pm
BOS
-
SXM
6h 48m
1 stop
United Airlines Logo
3:50 pm - 11:59 pm
SXM
-
BOS
8h 09m
1 stop
$343United Airlines
Booking Insights

KAYAK's insights & trends for Boston to Saint Martin Island flights

Get data-powered insights and trends into flights from Boston to Saint Martin Island to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Boston to Saint Martin Island flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Saint Martin Island from Boston found in the last 72 hours was to Simpson Bay, at $488 round-trip. The most popular route is from Boston (BOS) to Simpson Bay (SXM), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $488.

What is the cheapest time of day to fly to Saint Martin Island?

The average price for all round-trip flights from Boston to Saint Martin Island depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Saint Martin Island is generally in the morning, when round-trip flights cost $529 on average. The most expensive time of day to fly to Saint Martin Island is generally in the morning, which is peak travel time and where the average cost of a ticket is $529.

Can I save money by flying with a layover from Boston to Saint Martin Island?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $494, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Boston to Saint Martin Island?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Saint Martin Island, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Saint Martin Island is May, when tickets cost $108 (return) on average. On the other hand, the most expensive months are February and January, when the average cost of round-trip tickets is $286 and $274 respectively.

What’s the cheapest day of the week to fly from Boston to Saint Martin Island?

The average price of all round-trip flights from Boston to Saint Martin Island clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Saint Martin Island on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Boston to Saint Martin Island. For your return ticket, we recommend flying on a Tuesday and avoiding Thursdays for the best deals.

How far in advance should I book a flight from Boston to Saint Martin Island?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Saint Martin Island, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Saint Martin Island, you should book around 2 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$94
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Boston to Simpson Bay

FAQs - booking Saint Martin Island flights

  • How does KAYAK find such low prices on flights from Boston to Saint Martin Island?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Saint Martin Island.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Saint Martin Island?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Saint Martin Island is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Saint Martin Island?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Boston to Saint Martin Island with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Saint Martin Island?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boston to Saint Martin Island up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Boston to Saint Martin Island

 
See real verified KAYAK customer reviews for airlines flying from Boston to Saint Martin Island. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Saint Martin Island? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8460 reviews
8.5Crew
8.1Boarding
7.2Food
7.9Comfort
7.8Entertainment
Airline reviews

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

8.0 ExcellentMatthew, May 2026
OKC - ATL
Read more Delta reviews

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

The crew was very attentive through out the flight. Seats were comfortable, nice flight bag with pillow and blanket. Food was okay, since it was a overnight flight seemed to go by fast.

The flight attendant on my side of business class seemed like a novice and did not provide good service. Otherwise the flight was good and the entertainment system was very good. No free WiFi.

Cancelled BOYH legs of our flight home 30 min before initial boarding

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Excellent price. Everything on time. two bad parts. Kayak said I couldn't sign in for the flight online, but I got an email at the same time from Jet Blue and they let me sign in online. Second bad part was that, although I had provided my known traveler number, neither of my boarding passes, for this flight and the previous one, had TSA pre-check showing.

Jet blue was great But the Jayak system Wasa pure nightmare and wasted so much of my time and energy by not giving me a way to access jet blue to check in the flight back I didn’t even get the number confirmation code 24 hours before. Because I didn’t receive the email with the confirmation code I could NoT CHECk IN. I spoke to a kayak third party and they informed me I could not carry a carry on, on the flight which caused me so much extra stress it was just too much. You can be sure I will not be using it recommending your site. Again.

There was a screen but no earphones that could use the older input so I could listen to anything.

My experience with JetBlue was fine BUT I am very upset with Kayak! JetBlue had delayed our scheduled departure by an hour and you NEVER notified me of the change. I did not hear directly from JetBlue because the trip was booked through Kayak, a mistake I will not repeat. Your reminder of the our trip last week still had the WRONG departure time. Our return trip has also changed, and again no notice from you.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

Shut down without prior notice End up with spending lots of extra $$$

There was a crack in my window seal. And Spirit is now closed forever.

The company went out of business and now I'm stuck in Ft. Lauderdale. Would not recommend.

Spirit changed flight times by 12 hours with coming and going so I refunded tickets and drove

The airline cancel mi flight, lost a lot of money!!!

They closed the doors earlier than posted. I missed my flight with a slim 5 minutes bc they closed the doors earlier than earlier. My luggage never made it onto the flight and I had to find a new flight to Dallas bc the only option they could rebook me on was for leaving miami.

The agent cancel my flight without my consent. So the situation generate me a lot of troubles, specially because we were traveling with a baby

Wonderful! Very polite crew that was dedicated to excellent customer service

Everyone was nice but it's budget. There's nothing free and no entertainment

The flight was delayed for over an hour. No one at the gate said anything about the flight being delayed. I had to rely on my phone for updates. Absolutely no communication at the gate.

Everything you need to know for your flight to Saint Martin Island

Information on your arrival and departure airports