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Simpson Bay

$344+ Cheap flights from St. Louis (STL) 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SXM
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap flight deals from St. Louis to Simpson Bay

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$344
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$764
Provider with most accurate pricing for Lambert-St Louis-Simpson Bay Princess Juliana flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Simpson Bay Princess Juliana flights.
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From Lambert-St Louis to Simpson Bay Princess Juliana
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Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from St. Louis to Simpson Bay

Cheapest flights from St. Louis to Simpson Bay
Explore the most affordable flight options available from St. Louis to Simpson Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:47 pmSTL - SXM
1 stop18h 13mSpirit Airlines
Wed 5/72:56 pmSXM - STL
1 stop28h 36mSpirit Airlines
Deal found 2/20$344
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Tue 4/16:47 pmSTL - SXM
1 stop18h 13mMultiple Airlines
Wed 5/72:56 pmSXM - STL
3 stops28h 45mMultiple Airlines
Deal found 2/20$413
This Delta deal was found by Cheapflights users on 2/20. 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.
Mon 3/316:00 amSTL - SXM
1 stop7h 01mDelta
Wed 5/73:10 pmSXM - STL
1 stop9h 28mDelta
Deal found 2/20$566
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Sat 5/176:47 pmSTL - SXM
1 stop17h 28mAmerican Airlines
Wed 5/212:05 pmSXM - STL
1 stop8h 22mAmerican Airlines
Deal found 2/21$573
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 4/13:40 pmSTL - SXM
2 stops19h 49mUnited Airlines
Wed 5/73:55 pmSXM - STL
2 stops21h 24mUnited Airlines
Deal found 2/20$585
This Priceline deal was found by Cheapflights users on 2/20. 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.
Sat 6/75:22 pmSTL - SXM
2 stops45h 28mFrontier
Sat 6/1412:18 pmSXM - STL
2 stops21h 07mFrontier
Deal found 2/20$596
This Priceline deal was found by Cheapflights users on 2/21. 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.
Tue 3/255:33 pmSTL - SXM
2 stops20h 42mAir Canada
Sun 3/303:55 pmSXM - STL
2 stops47h 54mAir Canada
Deal found 2/21$857

Find flights from St. Louis to Simpson Bay within your budget

Customize your flight search to find flights from St. Louis 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 February 22, 2025.

Fly from

St. Louis

Fly to

Simpson Bay

Route

Depart

Return

Price

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Tue 4/1

6:47 pm-2:00 pm

1 stop18h 13m

Simpson Bay Princess Juliana

Wed 5/7

2:56 pm-6:32 pm

1 stop28h 36m

$344

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Tue 4/1

6:47 pm-2:00 pm

1 stop18h 13m

Simpson Bay Princess Juliana

Wed 5/7

2:56 pm-6:41 pm

3 stops28h 45m

$413

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Mon 3/31

6:00 am-2:01 pm

1 stop7h 01m

Simpson Bay Princess Juliana

Wed 5/7

3:10 pm-11:38 pm

1 stop9h 28m

$566

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Sat 5/17

6:47 pm-1:15 pm

1 stop17h 28m

Simpson Bay Princess Juliana

Wed 5/21

2:05 pm-9:27 pm

1 stop8h 22m

$573

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Tue 4/1

3:40 pm-12:29 pm

2 stops19h 49m

Simpson Bay Princess Juliana

Wed 5/7

3:55 pm-12:19 pm

2 stops21h 24m

$585

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Sat 6/7

5:22 pm-3:50 pm

2 stops45h 28m

Simpson Bay Princess Juliana

Sat 6/14

12:18 pm-8:25 am

2 stops21h 07m

$596

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Tue 3/25

5:33 pm-3:15 pm

2 stops20h 42m

Simpson Bay Princess Juliana

Sun 3/30

3:55 pm-2:49 pm

2 stops47h 54m

$857

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Compare providers for flights from St. Louis to Simpson Bay

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Simpson Bay in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapOairPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Simpson Bay flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Simpson Bay flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Simpson Bay flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Simpson Bay flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Simpson Bay flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Simpson Bay

Have a flexible travel schedule? Discover the best time to fly to Simpson Bay from St. Louis 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.

Travel insights for flights from St. Louis to Simpson Bay

Get recent, data-driven insights about flights from St. Louis to Simpson Bay including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Simpson Bay?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Simpson Bay. Price data was last updated on February 14, 2025.

The best time to book flights from St. Louis to Simpson Bay is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from St. Louis to Simpson Bay?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Simpson Bay (average of $459). Flying from St. Louis to Simpson Bay in July is currently the most expensive (average of $684). 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 STL to SXM?

Find hourly flight availability from St. Louis 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 February 22, 2025.

It’s typically best to fly out from St. Louis to Simpson Bay in the afternoon. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.

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 February 22, 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from St. Louis to Simpson Bay. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,203 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,754 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada
7.0
Good
8,757 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Spirit Airlines
6.3
Okay
8,012 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from St. Louis 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 are the cheapest airlines flying from St. Louis to Simpson Bay round-trip?

    Flying on Spirit Airlines is currently your cheapest option to Simpson Bay, with prices starting at $344. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $566 and $573, respectively. Spirit Airlines is 52% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from St. Louis to Simpson Bay?

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

  • Can I find deals for business class flights from St. Louis to Simpson Bay?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Simpson Bay?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Simpson Bay (average of $459). Flying from St. Louis to Simpson Bay in July is currently the most expensive (average of $684). 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.

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Alternative routes for St. Louis to Simpson Bay

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Simpson Bay flights

Top 2 airlines flying from St. Louis to Simpson Bay

Discover the top 2 airlines that operate flights from St. Louis to Simpson Bay. 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 2,558,603 searches. Data last updated February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$454Average$696FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$469Average$677FlexibilityNo cancel feeOn-time71%
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