HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Simpson Bay

$915+ Cheap flights from London (LON) to Simpson Bay (SXM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SXM
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from London to Simpson Bay with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from London to Simpson Bay Princess Juliana are usually found in March or February, booked 72 days in advance, depart on a Monday or Saturday and return on a Tuesday

Cheap flight deals from London to Simpson Bay

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Simpson Bay (SXM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2025.

Round-trip from

$915
(Delta)

Popular in

December

Cheapest in

March

Average price

$1,500
From London (LON) to Simpson Bay Princess Juliana
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from London to Simpson Bay

Cheapest flights from London to Simpson Bay
Explore the most affordable flight options available from London to Simpson Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/228:10 pmLHR - SXM
1 stop23h 00mDelta
Fri 8/293:10 pmSXM - LHR
2 stops37h 50mDelta
Deal found 7/30$915
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:10 pmLHR - SXM
2 stops22h 27mAmerican Airlines
Fri 11/72:51 pmSXM - LHR
1 stop14h 24mAmerican Airlines
Deal found 7/30$928
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/121:45 pmLHR - SXM
3 stops29h 15mMultiple Airlines
Fri 9/193:05 pmSXM - LHR
3 stops35h 55mMultiple Airlines
Deal found 7/29$1,108
This Priceline deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/208:15 amLHR - SXM
1 stop31h 55mJetBlue
Wed 8/2712:25 pmSXM - LHR
1 stop16h 05mJetBlue
Deal found 7/30$1,118
This Air France deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:15 amLHR - SXM
1 stop12h 20mAir France
Wed 8/273:40 pmSXM - LHR
1 stop11h 20mAir France
Deal found 7/30$2,031
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/13:20 pmLHR - SXM
2 stops26h 09mUnited Airlines
Mon 8/41:35 pmSXM - LHR
2 stops36h 20mUnited Airlines
Deal found 7/30$2,378

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Simpson Bay 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 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from London to Simpson Bay that are best for you.

Fly from

London

Fly to

Simpson Bay

Route

Depart

Return

Price

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Fri 8/22

4:05 pm-2:10 pm

1 stop27h 05m

Simpson Bay Princess Juliana

Sat 8/30

3:21 pm-6:20 am

2 stops33h 59m

$915

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Fri 10/24

8:10 pm-1:37 pm

2 stops22h 27m

Simpson Bay Princess Juliana

Fri 11/7

2:51 pm-9:15 am

1 stop14h 24m

$928

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Fri 9/12

1:45 pm-2:00 pm

3 stops29h 15m

Simpson Bay Princess Juliana

Fri 9/19

3:05 pm-8:00 am

3 stops35h 55m

$1,108

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Wed 8/20

8:15 am-11:10 am

1 stop31h 55m

Simpson Bay Princess Juliana

Wed 8/27

12:25 pm-9:30 am

1 stop16h 05m

$1,118

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Thu 8/21

6:15 am-1:35 pm

1 stop12h 20m

Simpson Bay Princess Juliana

Wed 8/27

3:40 pm-8:00 am

1 stop11h 20m

$2,031

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Sun 8/17

8:30 am-12:29 pm

2 stops32h 59m

Simpson Bay Princess Juliana

Sun 8/24

1:35 pm-9:35 am

2 stops39h 00m

$9,361

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Tue 11/25

5:50 pm-2:55 pm

1 stop25h 05m

$994

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Mon 8/4

1:55 pm-2:00 pm

3 stops53h 05m

$1,029

LondonSimpson Bay

LHR - SXM

LHRSXM

London Heathrow

Mon 8/4

8:15 am-11:10 am

1 stop31h 55m

$1,633

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from London to Simpson Bay

Have a flexible travel schedule? Discover the best time to fly to Simpson Bay from London with our price prediction graph.
Estimated round-trip 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 to Simpson Bay

How far ahead should I book a flight from London to Simpson Bay?

Use this chart to determine the optimal time to book a round-trip flight from London to Simpson Bay. Price data was last updated on July 25, 2025.

The price you pay for your flight from London to Simpson Bay may vary depending on when you book. For the best chance of a lower fare, look to book 71 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 to Simpson Bay?

Currently, September is the cheapest month in which you can book a flight from London to Simpson Bay (average of $459). Flying from London to Simpson Bay in March is currently the most expensive (average of $655). 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.

What is the cheapest time of day to fly from LON to SXM?

Find hourly flight availability from London to Simpson Bay. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

One of the essential ways to save on airfare from London to Simpson Bay is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 14% on airfare.

How much does it cost to fly round-trip from London to Simpson Bay?

Reviews of airlines servicing Simpson Bay

Get insights into the airlines that provide service to Simpson Bay. 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 Simpson Bay. Reviews last updated July 30, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Air France from London to Simpson Bay by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
JetBlue
7.3
Good
2,913 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from London to Simpson Bay. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Simpson Bay from London?

    Located just 0.5 mi from the city center, Simpson Bay Princess Juliana is the airport most travelers will use when flying to Simpson Bay from London. Booking flights from London to Princess Juliana (SXM) should be relatively easy as there are 0 daily inbound flights from London from 0 different airlines.

  • What are the cheapest airlines flying from London to Simpson Bay round-trip?

    Delta, at $915, was found to be the cheapest airline from London to Simpson Bay.Alternate airlines to your destination round-trip include American Airlines and JetBlue. These flights start at 18% lower than the current average price 3 months from now.

  • Can I find deals for flights from London to Simpson Bay that include hotel bookings?

    Yes. In addition to deals on London to Simpson Bay flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Simpson Bay?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Simpson Bay.

  • Can I find deals for business class flights from London to Simpson Bay?

    Yes. Cheapflights offers flight deals from London to Simpson Bay 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 to Simpson Bay?

    Currently, September is the cheapest month in which you can book a flight from London to Simpson Bay (average of $459). Flying from London to Simpson Bay in March is currently the most expensive (average of $655). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Simpson Bay by adding a car rental and/or hotel reservation to your travel itinerary.
Simpson Bay Princess Juliana Airport car rentals

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.