$90 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 4/12. 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

Sun, Mar 29 - Wed, Apr 1
American Airlines Logo
7:00 am - 3:28 pm
BOS
-
SXM
8h 28m
1 stop
American Airlines Logo
2:21 pm - 10:40 pm
SXM
-
BOS
8h 19m
1 stop
$319American Airlines
Sun, Mar 29 - Wed, Apr 1
American Airlines Logo
7:00 am - 3:28 pm
BOS
-
SXM
8h 28m
1 stop
American Airlines Logo
4:28 pm - 10:05 am
SXM
-
BOS
17h 37m
2 stops
$324American Airlines
Mon, Mar 23 - Wed, Apr 1
American Airlines Logo
8:30 pm - 1:21 pm
BOS
-
SXM
16h 51m
2 stops
American Airlines Logo
12:29 pm - 11:16 pm
SXM
-
BOS
10h 47m
1 stop
$325American Airlines
Sat, Apr 11 - Thu, Apr 16
Multiple Airlines Logo
5:45 am - 1:30 pm
BOS
-
SXM
7h 45m
1 stop
Multiple Airlines Logo
11:45 am - 4:12 pm
SXM
-
BOS
4h 27mnonstop
$327Multiple Airlines
Tue, Apr 14 - Sun, Apr 19
Spirit Airlines Logo
5:45 am - 1:30 pm
BOS
-
SXM
7h 45m
1 stop
Spirit Airlines Logo
2:42 pm - 10:15 am
SXM
-
BOS
19h 33m
1 stop
$329Spirit Airlines
Mon, Apr 13 - Sun, Apr 19
Spirit Airlines Logo
5:45 am - 1:30 pm
BOS
-
SXM
7h 45m
1 stop
Spirit Airlines Logo
2:42 pm - 7:47 am
SXM
-
BOS
17h 05m
2 stops
$330Spirit Airlines
Sun, May 10 - Thu, May 14
Spirit Airlines Logo
6:15 am - 1:37 pm
BOS
-
SXM
7h 22m
1 stop
Spirit Airlines Logo
2:42 pm - 11:44 pm
SXM
-
BOS
9h 02m
1 stop
$335Spirit Airlines
Mon, Mar 30 - Fri, Apr 3
Multiple Airlines Logo
3:35 pm - 1:35 pm
BOS
-
SXM
22h 00m
1 stop
Multiple Airlines Logo
2:35 pm - 11:59 pm
SXM
-
BOS
9h 24m
1 stop
$336Multiple Airlines
Mon, Apr 6 - Sat, Apr 11
Multiple Airlines Logo
5:45 am - 1:30 pm
BOS
-
SXM
7h 45m
1 stop
Multiple Airlines Logo
6:51 pm - 10:16 am
SXM
-
BOS
15h 25m
1 stop
$338Multiple Airlines
Sun, Apr 26 - Sat, May 2
Spirit Airlines Logo
5:55 am - 1:37 pm
BOS
-
SXM
7h 42m
1 stop
Spirit Airlines Logo
2:42 pm - 7:47 am
SXM
-
BOS
17h 05m
2 stops
$339Spirit 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 $339 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 $339.

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 $535 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 $535.

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 $456, 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 September, when tickets cost $420 (return) on average. On the other hand, the most expensive months are April and November, when the average cost of round-trip tickets is $621 and $621 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 Saturdays 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 15% 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$90
Best time to beat the crowds with an average 21% 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 8303 reviews
8.5Crew
8.1Boarding
7.8Entertainment
7.9Comfort
7.2Food
Airline reviews

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

10.0 ExcellentShirley, Mar 2026
LAX - ATL
Read more Delta reviews

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

Mechanical Delay of over an hour with multiple gate changes. Entertainment system down for rejuvenation.

This was a Latam operated flight. Seats seemed a bit narrow in business class. Older aircraft.

I had a flight cancel and had it rerouted. When the rerouted they put me at a window seat instead of an isle. It was hard sitting by the window because the couple with masks on were making out. I get motion sickness which is why I need to have the isle seat.

NEVER MADE THE FLIGHT BECAUSE DELTA SAID THEY CAN NOT

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

Flight cancelled 2 hours prior to boarding. No explanation. No refunds.

Delayed by 1.5 hours. Terrible apologies, half hearted at best. It will be a LONG time until i book w Jet Blue again. Very disappointed.

My check in was stressful. I somehow lost my seat from my original booking, the plane showed no availability/no seat when it was time to check-in. I called and was instructed to try to get a seat at the airport. I asked if it was a full flight and the travel agent said the site showed some seating but was not able to secure one for me. Why not? On my way to the airport the app finally revealed one available seat towards the back of the aircraft that I was able to book. It ended up being an overbooked flight, so glad I wasn't stuck.

Flights with JetBlue from San Diego to Boston are a miserable experience. The flight was delayed about 1.5 hours due to “weather” supposedly but the flights for other airlines left on time so it just have been some kind of weather that only affects JetBlue. I had a small carry on - purse. The crew stored it in a bin 2 rows down from me because they were using the bin next to my seat for other people’s stuff. The TV screen in the emergency row seats does not work. It just was awful from start to finish. When we landed, we had to sit inside the plane for a very long time because the plane had to be moved to a different gate.

They made me check my bag and I didn't need to as there was overhead space available. I paid for a seat towards the front of the plane and it didn't recline. I requested a refund and they declined to give me one.

I have to congratulate Kayak (and Dylan the Chatdeal agent) because because when we decided extended our trip in Florida by two days, there were many direct flights oprions back to Boston available on the Friday we wanted to fly on the JetBlue website, but once I canceled the original JetBlue flight on their website, those direct return options disappeared immediatley! I think it's a game JetBlue plays. . Luckily, I checked Kayak and they had a direct flight that wasn't appearing on JetBlue's website and so I booked it, and we were able to fly home direct through the Kayak booking when JetBlue was offering nothing (even though I have been a True Blue member for 20 years, and also am a Mosaic member). So much for loyalty- their algorithm for booking is like a shell game. JetBlue used to be a good company but now they're worse than anyone. Also I was originally booked this trip to Florida, two months before the departure date, I booked the trip on JetBlue's website and then after the payment part, they said there was a problem and that I needed to do the booking again, so when I immediately went to rebook , the price had gone up 30%! I called them and it sounded like they had heard this so many times before and the guy told me to check back in 10 minutes and the price would be back to where it was when I was booking- it but it never was. How could the price go up 30% in one minute two months before the flight???? They're playing a game with their customers. Anyways, I booked a cheaper flight then at a less convenient time. So fast forward two months the night before the 7 AM flight, they sent me an email at midnight when I was sleeping to let me know that my flight at 7 AM had been canceled. The only thing they offered was a flight that night from from a different airport (Providence) to a different airport in Florida (West Palm Beach) or a flight two days later. No compensation, nothing. They couldn't of tried to get another plane to the Boston airport? They had all night to do it. I passed on their ridiculous options and flew with Delta and it was a great experience. Of course, I had to pay a lot more booking on the same day, but JetBlue doesn't care. I put in a lengthy complaint with the agent who assured me someone would get back to me by email within three days and I haven't heard a thing. JetBlue used to be a good company but now they're among the worst. The only thing they still have is decent legroom, but the corporate bean counters will probably start taking that away too.

We were made to wait in the airport for six hours for a flight that was ultimately canceled.

Both flights were significantly delayed. The flight experience itself was great.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

Great experience. Good dinner and service. FA's were very nice and attentive.

It was great. Smooth flight, comfortable, left on time and landed on time.

Perhaps this is an airport issue, but being in a takeoff queue for over an hour in the taxiing lane is unacceptable. We will definitely be seeking alternative avenues for air travel in the future.

We hoarded. Then we deplaned. Then we waited for 10 hours in the MSP airport due to a wheel misfunction. We understand safety but communication between crew and airport staff was horrible. When we did finally board, we were rushed on and because we were waiting for a “fresh” pilot and crew, we sat in a roasting plane with no A/C for an hour. My question is why was this flight not cancelled right away when they knew this would be a huge issue OR, why did AA not get a substitute plane, considering this was already a full flight? To me, this appears to be a complete breakdown in leadership and utter systems failure. The compensation for completely disrupting travel plans for hundreds, which we paid dearly for, was measly. While we appreciated the lodging for the night, $12 in meal vouchers isn’t going to sustain anyone for over 12 hours. “We apologize; our hands are tied” is no longer an acceptable explanation. We are so completely turned off by this experience and will definitely seek alternative avenues when we need to fly.

Mostly good. The WiFi wasn’t working so that was not great.

I rated the experience "mediocre" because of the 2 hour delay in take off. This is the 4th flight from DFW on AA where there was a delay and in one of the instances (after 13 delays), the flight was cancelled. I understand weather but for the March 18th flight, there was no weather issue in Dallas or Detroit. I called Concierge Key and they were wonderful, booking me on a later flight in case my flight was cancelled. I have flown with American for many years and never has there been this consistent pattern of delays. Very disappointing.

They put me on an earlier and I got home sooner

Not good. One of my luggage is missing. And until now they can’t find it

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

I was in the airport when I'll check the status of my flight and it was canceled and without any reason. The worst of the worst ...

I never had an opportunity to experience them! They cancelled my flight TWICE!!!

Return flight was canceled. Needed to reschedule with another airline the next day. Cost an an additional $84. At another airport 45 miles further away

Spent seven hours in the airport with spirit pushing he flight time back two hours every two hours only to then have it canceled without explanation. The employees said, “They’ve been doing this for the last five days.” Would have been great if they told us to expect that when we arrived.

Seat do not reclined and tight space. Flight changed so many times hard to keep up.

Bad airline to travel with my flight was delayed for more than 3 hours they act like it’s normal

No WiFi, no outlets to charge phones, no complimentary beverages on a 6 hour flight

Length of flight was fine Delay of over 3 hours was very bad!! Flight down was delayed 1.5 hours

Delayed 11 hours with two being on our destinations tarmac, no compensation or refund and was told I would actually get charged a $200 cancellation fee if I decided to switch airlines for my return flight. For their inconvenience they gave a $10 meal voucher to split between two people in a airport.

Absolutely terrible, flight was cancelled and we missed our cruise. Will never fly Spirit again.

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

Information on your arrival and departure airports