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Cheap flights from St. Louis (STL) to Simpson Bay (SXM) from $310

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 6/9. 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.
STL — SXM
May 11 — May 181
From?
To?
Sat 5/11
Sat 5/18
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 May 6, 2024.

Popular in

June

Cheapest in

January

Average price

$637

Round-trip from

$546
High demand for flights, 19% potential price rise
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Best time to find cheap flights, 22% potential price drop
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Average for round-trip flights in May 2024
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From Lambert-St Louis to Simpson Bay Princess Juliana
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What is the cheapest day to fly round-trip from St. Louis to Simpson Bay?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 33% on your flight compared to booking on days when demand is much higher.

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

Travelers have found it’s best to book a flight 53 days in advance to save up to 147% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 53 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Simpson Bay 1-2 weeks in advance for as low as $504, or $813 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to Simpson Bay?

January can be a great time to fly to Simpson Bay from St. Louis with a flight ticket averaging about $787. Cheapflights users have found deals in the month of January for as cheap as $468. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from St. Louis to Simpson Bay (STL - SXM)?

It’s typically best to fly out from St. Louis to Simpson Bay in the morning. Doing so could potentially save you 4% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Frontier flights from St. Louis to Simpson Bay

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and Simpson Bay. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 6, 2024.
Check out some of the cheapest Frontier flights we've come across from St. Louis to Simpson Bay. Make sure to double check the flight details before booking.
Fri 7/56:42 pmSTL - SXM
1 stop19h 36mFrontier
Sat 7/134:30 pmSXM - STL
1 stop15h 32mFrontier
Deal found 5/5$412
Fri 6/287:44 pmSTL - SXM
1 stop18h 26mFrontier
Sat 7/64:30 pmSXM - STL
1 stop15h 32mFrontier
Deal found 5/5$414
Fri 6/285:36 pmSTL - SXM
2 stops20h 34mFrontier
Sat 7/64:30 pmSXM - STL
1 stop15h 32mFrontier
Deal found 5/5$471
Fri 6/285:36 pmSTL - SXM
2 stops20h 34mFrontier
Sat 7/64:30 pmSXM - STL
2 stops45h 52mFrontier
Deal found 5/5$537

Cheap American Airlines flights from St. Louis to Simpson Bay

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Simpson Bay. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 6, 2024.
Take a gander at the lowest prices we've found on American Airlines flights from St. Louis to Simpson Bay. Make sure to examine the flight information before completing your reservation.
Tue 8/65:30 amSTL - SXM
1 stop6h 55mAmerican Airlines
Sun 8/114:04 pmSXM - STL
1 stop8h 12mAmerican Airlines
Deal found 5/5$468
Tue 8/65:30 amSTL - SXM
1 stop6h 55mAmerican Airlines
Sun 8/112:30 pmSXM - STL
2 stops18h 57mAmerican Airlines
Deal found 5/5$473
Tue 8/66:03 pmSTL - SXM
2 stops20h 01mAmerican Airlines
Sun 8/112:30 pmSXM - STL
2 stops18h 57mAmerican Airlines
Deal found 5/5$474
Sat 9/212:38 pmSTL - SXM
2 stops21h 44mAmerican Airlines
Wed 9/252:42 pmSXM - STL
2 stops20h 33mAmerican Airlines
Deal found 5/4$534
Fri 7/56:09 pmSTL - SXM
2 stops20h 21mAmerican Airlines
Fri 7/122:10 pmSXM - STL
1 stop19h 23mAmerican Airlines
Deal found 5/5$540
Fri 7/56:09 pmSTL - SXM
2 stops20h 21mAmerican Airlines
Sat 7/134:20 pmSXM - STL
1 stop17h 10mAmerican Airlines
Deal found 5/5$556
Fri 7/56:09 pmSTL - SXM
2 stops20h 06mAmerican Airlines
Sat 7/134:20 pmSXM - STL
2 stops17h 19mAmerican Airlines
Deal found 5/5$558
Fri 7/53:18 pmSTL - SXM
2 stops22h 57mAmerican Airlines
Fri 7/122:10 pmSXM - STL
2 stops20h 19mAmerican Airlines
Deal found 5/5$560
Mon 5/275:04 amSTL - SXM
1 stop6h 53mAmerican Airlines
Sun 6/22:35 pmSXM - STL
1 stop9h 44mAmerican Airlines
Deal found 5/5$588

Cheap St. Louis to Simpson Bay flights in May & June 2024

Find cheap flight options from St. Louis to Simpson Bay specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Prices were last updated on May 6, 2024.
Check out some of the best flight deals from St. Louis to Simpson Bay in 2024. For more flight deals, be sure to check back very soon.
Sun 6/97:44 pmSTL - SXM
2 stops20h 31mFrontier
Fri 6/146:25 pmSXM - STL
2 stops20h 53mFrontier
Deal found 5/5$310
Sun 6/97:44 pmSTL - SXM
2 stops20h 31mMultiple Airlines
Fri 6/142:44 pmSXM - STL
1 stop27h 44mMultiple Airlines
Deal found 5/5$359
Sun 6/95:22 pmSTL - SXM
1 stop19h 26mSpirit Airlines
Fri 6/142:44 pmSXM - STL
1 stop27h 44mSpirit Airlines
Deal found 5/5$396
Fri 6/287:44 pmSTL - SXM
1 stop18h 26mFrontier
Sat 7/64:30 pmSXM - STL
1 stop15h 32mFrontier
Deal found 5/5$414
Fri 6/285:36 pmSTL - SXM
2 stops20h 34mFrontier
Sat 7/64:30 pmSXM - STL
1 stop15h 32mFrontier
Deal found 5/5$471
Fri 6/285:36 pmSTL - SXM
2 stops20h 34mFrontier
Sat 7/64:30 pmSXM - STL
2 stops45h 52mFrontier
Deal found 5/5$537
Mon 5/275:04 amSTL - SXM
1 stop6h 53mAmerican Airlines
Sun 6/22:35 pmSXM - STL
1 stop9h 44mAmerican Airlines
Deal found 5/5$588
Mon 5/274:20 pmSTL - SXM
2 stops18h 15mAmerican Airlines
Sun 6/24:05 pmSXM - STL
2 stops19h 32mAmerican Airlines
Deal found 5/5$593
Sun 6/94:05 pmSTL - SXM
2 stops17h 45mMultiple Airlines
Fri 6/141:20 pmSXM - STL
3 stops51h 01mMultiple Airlines
Deal found 5/5$2,603

St. Louis to Simpson Bay 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Simpson Bay in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 6, 2024.
Check out some of the best flight deals from St. Louis to Simpson Bay in 2024. For more flight deals, be sure to check back very soon.
Sun 6/97:44 pmSTL - SXM
2 stops20h 31mFrontier
Fri 6/146:25 pmSXM - STL
2 stops20h 53mFrontier
Deal found 5/5$310
Sun 6/97:44 pmSTL - SXM
2 stops20h 31mMultiple Airlines
Fri 6/142:44 pmSXM - STL
1 stop27h 44mMultiple Airlines
Deal found 5/5$359
Sun 6/95:22 pmSTL - SXM
1 stop19h 26mSpirit Airlines
Fri 6/142:44 pmSXM - STL
1 stop27h 44mSpirit Airlines
Deal found 5/5$396
Fri 7/56:42 pmSTL - SXM
1 stop19h 36mFrontier
Sat 7/134:30 pmSXM - STL
1 stop15h 32mFrontier
Deal found 5/5$412
Fri 6/287:44 pmSTL - SXM
1 stop18h 26mFrontier
Sat 7/64:30 pmSXM - STL
1 stop15h 32mFrontier
Deal found 5/5$414
Tue 8/65:30 amSTL - SXM
1 stop6h 55mAmerican Airlines
Sun 8/114:04 pmSXM - STL
1 stop8h 12mAmerican Airlines
Deal found 5/5$468
Fri 6/285:36 pmSTL - SXM
2 stops20h 34mFrontier
Sat 7/64:30 pmSXM - STL
1 stop15h 32mFrontier
Deal found 5/5$471
Tue 8/65:30 amSTL - SXM
1 stop6h 55mAmerican Airlines
Sun 8/112:30 pmSXM - STL
2 stops18h 57mAmerican Airlines
Deal found 5/5$473
Tue 8/66:03 pmSTL - SXM
2 stops20h 01mAmerican Airlines
Sun 8/112:30 pmSXM - STL
2 stops18h 57mAmerican Airlines
Deal found 5/5$474

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 2,719,943 searches. Data last updated May 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$412 - $534

Route

Depart

Return

Price

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Fri 7/5

1 stop19h 36m

Simpson Bay Princess Juliana

Sat 7/13

1 stop15h 32m

$412

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Fri 6/28

1 stop18h 26m

Simpson Bay Princess Juliana

Sat 7/6

1 stop15h 32m

$414

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Tue 8/6

1 stop6h 55m

Simpson Bay Princess Juliana

Sun 8/11

1 stop8h 12m

$468

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Fri 6/28

2 stops20h 34m

Simpson Bay Princess Juliana

Sat 7/6

1 stop15h 32m

$471

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Tue 8/6

1 stop6h 55m

Simpson Bay Princess Juliana

Sun 8/11

2 stops18h 57m

$473

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Tue 8/6

2 stops20h 01m

Simpson Bay Princess Juliana

Sun 8/11

2 stops18h 57m

$474

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Sat 9/21

1 stop19h 44m

Simpson Bay Princess Juliana

Wed 9/25

1 stop9h 16m

$477

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Fri 7/5

1 stop6h 55m

Simpson Bay Princess Juliana

Fri 7/12

1 stop18h 47m

$503

Lambert-St LouisSimpson Bay Princess Juliana

STL - SXM

STLSXM

Lambert-St Louis

Sat 9/21

2 stops21h 44m

Simpson Bay Princess Juliana

Wed 9/25

2 stops20h 33m

$534

Flights are sorted by cheapest first

Deals found on 5/5

When is the best time to 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 May 3, 2024.
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.
Search Deals

When is the cheapest time to fly from St. Louis to Simpson Bay?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Simpson Bay. Price data was last updated on May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Simpson Bay flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Simpson Bay by month

Plan your trip from St. Louis to Simpson Bay by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Simpson Bay is currently $0 while a round-trip flight costs $470. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to Simpson Bay (average of $546). Flying from St. Louis to Simpson Bay in July is currently the most expensive (average of $788). 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.

January

$548

February

$589

March

$656

April

$600

May

$584

June

$665

July

$788

August

$648

September

$546

October

$661

November

$603

December

$637

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 May 6, 2024.
Read reviews from past customers who have flown Frontier, American Airlines and Delta 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
8.1
Very good
10,826 reviews
Check prices

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,826 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,713 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Frontier
6.3
Okay
4,099 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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.

  • Can I find flights from St. Louis to Simpson Bay for under $500 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Simpson Bay for under $500. The cheapest flight booked recently is on Frontier for just $412, but on average you can expect to pay $509.

  • What are the cheapest airlines flying from St. Louis to Simpson Bay round-trip?

    Flying on Frontier is currently your cheapest option to Simpson Bay, with prices starting at $412. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $468 and $477, respectively. Frontier is 47% cheaper than the average price of flights available within the next 90 days to this destination.

  • What does STL to SXM mean?

    Great question - STL to SXM just means Lambert-St Louis Airport to Simpson Bay Princess Juliana Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from St. Louis to Simpson Bay that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Simpson Bay flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Simpson Bay with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Simpson Bay flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from St. Louis to Simpson Bay that allow pets onboard?

    Many airlines flying from St. Louis to Simpson Bay offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Simpson Bay?

    Yes, you can often find last-minute deals on St. Louis to Simpson Bay flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Simpson Bay flight deals updated?

    The St. Louis to Simpson Bay flight deals you see on this page were last updated on 5/5.

See more FAQs

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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 2,719,943 searches. Data last updated May 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$484Average$734FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$495Average$800FlexibilityNo cancel feeOn-time71%
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Search flights from St. Louis to Simpson Bay by cabin class

Find flights from St. Louis to Simpson Bay, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

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

How does Cheapflights help users find flights from St. Louis to Simpson Bay?

Cheapflights makes it easy to find St. Louis to Simpson Bay 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 St. Louis to Simpson Bay?

Cheapflights helps you find that perfect flight to Simpson Bay from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to Simpson Bay with no change fees?

Yes, we can. To see specific flights from St. Louis to Simpson Bay with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. Louis to Simpson Bay become cheaper?

Yes, Cheapflights offers price alerts on St. Louis to Simpson Bay flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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