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Cheap flights from London Heathrow Airport to Saint Martin Island from £409

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SXM
1 Jun — 8 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Saint Martin Island

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Saint Martin Island
Explore the most affordable flight options available from Heathrow to Saint Martin Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 May 2026.

Sat 9/518:35
LHR
-
SXM
2 stops24h 16m
Delta
Sat 16/515:35
SXM
-
LHR
1 stop13h 45m
Delta
Deal found 27/4£715
Thu 30/416:55
LHR
-
SXM
2 stops23h 42m
British Airways
Thu 7/516:35
SXM
-
LHR
2 stops24h 05m
British Airways
Deal found 28/4£727
Mon 2/1118:00
LHR
-
SXM
2 stops24h 17m
American Airlines
Mon 16/1117:24
SXM
-
LHR
1 stop14h 41m
American Airlines
Deal found 30/4£729
Mon 4/509:15
LHR
-
SXM
2 stops35h 07m
British Airways
Thu 7/514:24
SXM
-
LHR
1 stop16h 46m
British Airways
Deal found 27/4£729
Sat 31/1019:05
LHR
-
SXM
2 stops23h 12m
American Airlines
Sat 7/1114:15
SXM
-
LHR
1 stop13h 35m
American Airlines
Deal found 27/4£730
Fri 1/515:00
LHR
-
SXM
1 stop27h 20m
American Airlines
Fri 8/512:41
SXM
-
LHR
1 stop15h 19m
American Airlines
Deal found 28/4£739

Find flight deals from Heathrow to Saint Martin Island

Keep the following information in mind while searching for Heathrow to Saint Martin Island flight deals. Data was last updated 2 May 2026.

Round-trip from

£727

One-way from

£409

Popular in

July

Cheapest in

September

Average price

£934
Delta
  • Delta
  • 25/5-6/6
  • 3 total stops
  • 45h 46m total
  • London to Saint Martin Island
Search Deals
9/5
  • 9/5
  • 3 total stops
  • 46h 30m total
  • London to Saint Martin Island
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£78 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Saint Martin Island that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Saint Martin Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Fri 29/5

19:50-14:06

1 stop23h 16m

Simpson Bay Princess Juliana

Fri 5/6

15:20-13:15

1 stop16h 55m

£870

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Mon 25/5

09:20-13:51

1 stop33h 31m

Simpson Bay Princess Juliana

Sat 6/6

15:45-20:10

1 stop23h 25m

£904
Fastest return journey

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Wed 1/7

19:25-13:19

2 stops22h 54m

Simpson Bay Princess Juliana

Sat 18/7

16:45-12:35

1 stop14h 50m

£959

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Thu 28/5

09:55-15:42

1 stop34h 47m

Simpson Bay Princess Juliana

Thu 4/6

16:43-06:55

1 stop33h 12m

£968

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Thu 28/5

09:55-13:22

1 stop32h 27m

Simpson Bay Princess Juliana

Fri 5/6

16:43-06:55

1 stop33h 12m

£968

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Sat 23/5

15:40-15:42

1 stop29h 02m

Simpson Bay Princess Juliana

Sun 31/5

16:43-06:55

1 stop33h 12m

£1,012

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Sat 23/5

14:45-13:00

1 stop27h 15m

Simpson Bay Princess Juliana

Sun 31/5

14:20-10:45

2 stops15h 25m

£1,039

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Wed 29/7

20:10-15:42

2 stops24h 32m

Simpson Bay Princess Juliana

Tue 4/8

14:51-12:10

1 stop16h 19m

£1,049
Cheapest one-way

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Sat 9/5

20:50-14:20

3 stops46h 30m

£409

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Mon 11/5

07:40-11:27

3 stops56h 47m

£459

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Saint Martin Island

Have a flexible travel schedule? Discover the best time to fly to Saint Martin Island from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Saint Martin Island

How far ahead should I book a flight from London Heathrow Airport to Saint Martin Island?

The price you pay for your flight from London Heathrow Airport to Saint Martin Island may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Saint Martin Island?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Saint Martin Island (average of £473). Flying from London Heathrow Airport to Saint Martin Island in July is currently the most expensive (average of £780). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Saint Martin Island

Get insights into the airlines that provide service to Saint Martin Island. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Martin Island. Reviews last updated 2 May 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Saint Martin Island, such as KLM,Finnair, andAir France. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,511 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,511 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Finnair
7.6
Good
1,392 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Air France
7.4
Good
1,582 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
JetBlue
7.2
Good
2,969 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
American Airlines
7.1
Good
11,684 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Saint Martin Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Saint Martin Island?

    Airlines like Delta and American Airlines fly from London Heathrow Airport to Saint Martin Island in about 22h 54m. The time it takes to get you to your destination can typically vary by up to 22m. London Heathrow Airport and Saint Martin Island are separated by a distance of 4077 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Heathrow to Saint Martin Island that include hotel bookings?

    Yes. In addition to deals on Heathrow to Saint Martin Island flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Saint Martin Island?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Saint Martin Island.

  • Can I find deals for business class flights from Heathrow to Saint Martin Island?

    Yes. Cheapflights offers flight deals from Heathrow to Saint Martin Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Saint Martin Island?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Saint Martin Island (average of £473). Flying from London Heathrow Airport to Saint Martin Island in July is currently the most expensive (average of £780). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Saint Martin Island

See prices for flight routes from nearby airports that may be better suited for you.
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Heathrow to Kingstown flights
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Heathrow to George Town flights
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London City to Castries flights
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Heathrow to Havana flights
London City to Luis Munoz Marin Intl flights
Gatwick to George Town flights

Top 8 airlines flying from Heathrow to Saint Martin Island

Discover the top 8 airlines that operate flights from Heathrow to Saint Martin Island. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 May 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£473Average£657FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£502Average£1,076FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapest£641Average£1,015FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£665Average£1,101FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapest£679Average£841FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest£681Average£719FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FinnairCheapest£682Average£866FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£719Average£737FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Saint Martin Island?

Cheapflights makes it easy to find Heathrow to Saint Martin Island flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Saint Martin Island?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Saint Martin Island for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to Saint Martin Island with no change fees?

Need flexible booking options for your flight to Saint Martin Island from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Saint Martin Island become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Saint Martin Island from Heathrow today and book when prices fit your budget.

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