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STL - SXM

Find cheap flights from St. Louis to Simpson Bay from $295

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Simpson Bay departing on 5/31. 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
0 bags
Sat 6/1
Sat 6/8

Search hundreds of travel sites at once for deals on flights to Simpson Bay

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Simpson Bay, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Simpson Bay, as well as popular online travel agencies
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from St. Louis to Simpson Bay (STL-SXM)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Simpson Bay 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 and deals for you by selecting your travel dates.
Choose your dates
7:44 pm - 3:17 pmSTL-SXM
18h 33m1 stop
6:25 pm - 11:13 amSXM-STL
17h 48m2 stops
$295Frontier
Find Deal
Fri, May 31 - Fri, Jun 7
7:44 pm - 3:17 pmSTL-SXM
18h 33m1 stop
2:44 pm - 5:28 pmSXM-STL
27h 44m1 stop
Fri, May 31 - Fri, Jun 7
6:40 pm - 3:17 pmSTL-SXM
19h 37m2 stops
6:25 pm - 11:13 amSXM-STL
17h 48m2 stops
$374Frontier
Find Deal
Fri, May 31 - Fri, Jun 7
10:34 am - 1:44 pmSTL-SXM
26h 10m1 stop
2:44 pm - 5:30 pmSXM-STL
27h 46m1 stop
$415Spirit Airlines
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Tue, Aug 27 - Wed, Sep 4
5:30 am - 1:25 pmSTL-SXM
6h 55m1 stop
2:42 pm - 11:00 pmSXM-STL
9h 18m1 stop
$443American Airlines
Find Deal
Wed, Aug 28 - Thu, Sep 5
5:30 am - 1:25 pmSTL-SXM
6h 55m1 stop
2:42 pm - 10:04 amSXM-STL
20h 22m2 stops
$446American Airlines
Find Deal
Tue, Aug 27 - Wed, Sep 4
6:00 am - 1:49 pmSTL-SXM
6h 49m1 stop
3:19 pm - 11:39 pmSXM-STL
9h 20m1 stop
$455Delta
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Sun, Aug 25 - Wed, Sep 4
10:00 am - 1:49 pmSTL-SXM
26h 49m1 stop
3:19 pm - 11:39 pmSXM-STL
9h 20m1 stop
$462Delta
Find Deal
Tue, Aug 27 - Fri, Sep 6
4:31 pm - 1:44 pmSTL-SXM
44h 13m2 stops
2:44 pm - 9:39 amSXM-STL
19h 55m1 stop
$466Spirit Airlines
Find Deal
Mon, Aug 19 - Mon, Aug 26
8:25 am - 12:10 pmSTL-SXM
50h 45m3 stops
11:55 am - 10:36 amSXM-STL
23h 41m2 stops
$3,598United Airlines
Find Deal
Sun, Sep 29 - Sun, Oct 6

Flights from St. Louis to Simpson Bay - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Simpson Bay to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Simpson Bay, 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 St. Louis to Simpson Bay is September, where tickets cost $713 on average. On the other hand, the most expensive months are June and March, where the average cost of tickets is $1,001 and $942 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Simpson Bay, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Simpson Bay, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 61 days before departure.

Good to know

Low season

September

High season

January

Cheapest flight

$295
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from St. Louis to Simpson Bay

When to book flights from St. Louis to Simpson Bay

Are your dates flexible? Find out the best times to travel from St. Louis to Simpson Bay based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Simpson Bay

  • What is the cheapest flight from St. Louis to Simpson Bay?

    In the last 3 days, the lowest price for a flight from St. Louis to Simpson Bay was $295 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Simpson Bay?

    Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Simpson Bay.

  • Which aircraft models fly most regularly from St. Louis to Simpson Bay?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Simpson Bay?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Simpson Bay, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Simpson Bay, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Simpson Bay are Delta and American Airlines. With an average price for the route of $737 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $806 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from St. Louis to Simpson Bay?

    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 St. Louis to Simpson Bay.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Simpson Bay?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Simpson Bay from St. Louis 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 St. Louis to Simpson Bay?

    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 to Simpson Bay with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SXM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Simpson Bay?

    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 to Simpson Bay from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from St. Louis to Simpson Bay

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Simpson Bay. 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 St. Louis to Simpson Bay? 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.
8.0
DeltaOverall score based on 10861 reviews
7.9Comfort
8.2Boarding
8.6Crew
7.4Food
8.0Entertainment
Airline reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

8.0 ExcellentAnonymous, May 2024ATL - ATW
Read more about Delta reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Too bad that first class seats do not recline significantly causing discomfort

I think the seats on some of their planes are uncomfortable. You can be ok on a short flight of two hours but no more than that. The delays, and also the refreshments on the plane were not enough.

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

St. Louis - Simpson Bay Flights

Departure:

St. Louis (STL)United States

Destination:

Simpson Bay (SXM)St. Maarten

Cabin classes: