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STL - SXM

Find cheap flights from St. Louis to Simpson Bay from $391

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 5/24. 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 5/25
Sat 6/1

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 44,979,812 times on KAYAK, and here is why:

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

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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 - 3:04 pmSTL-SXM
18h 20m1 stop
2:44 pm - 10:28 amSXM-STL
20h 44m2 stops
Fri, May 24 - Fri, May 31
7:44 pm - 3:04 pmSTL-SXM
18h 20m1 stop
2:44 pm - 4:25 pmSXM-STL
26h 41m1 stop
Fri, May 24 - Fri, May 31
7:44 pm - 3:10 pmSTL-SXM
18h 26m1 stop
4:30 pm - 7:02 amSXM-STL
15h 32m1 stop
$403Frontier
Find Deal
Fri, Jun 28 - Sat, Jul 6
6:42 pm - 3:18 pmSTL-SXM
19h 36m1 stop
4:30 pm - 7:02 amSXM-STL
15h 32m1 stop
$422Frontier
Find Deal
Fri, Jul 5 - Sat, Jul 13
2:12 pm - 3:18 pmSTL-SXM
24h 06m2 stops
4:30 pm - 7:02 amSXM-STL
15h 32m1 stop
$443Frontier
Find Deal
Fri, Jul 5 - Sat, Jul 13
6:00 am - 1:49 pmSTL-SXM
6h 49m1 stop
3:19 pm - 11:35 pmSXM-STL
9h 16m1 stop
$470Delta
Find Deal
Sat, Sep 21 - Wed, Sep 25
2:38 pm - 1:22 pmSTL-SXM
21h 44m2 stops
2:42 pm - 9:14 amSXM-STL
19h 32m2 stops
$473American Airlines
Find Deal
Sat, Sep 7 - Sat, Sep 14
5:17 am - 1:13 pmSTL-SXM
6h 56m1 stop
2:10 pm - 8:30 amSXM-STL
19h 20m1 stop
$474American Airlines
Find Deal
Fri, Jul 5 - Fri, Jul 12
6:13 pm - 3:30 pmSTL-SXM
20h 17m2 stops
2:10 pm - 8:30 amSXM-STL
19h 20m1 stop
$479American Airlines
Find Deal
Fri, Jul 5 - Fri, Jul 12
7:06 pm - 1:55 pmSTL-SXM
17h 49m1 stop
3:20 pm - 11:43 pmSXM-STL
9h 23m1 stop
$771Delta
Find Deal
Sun, Jun 16 - Sun, Jun 23

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

$391
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 $391 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?

    SkyTeam, and oneworld 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 $808 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 10975 reviews
8.2boarding
7.9comfort
8.0entertainment
7.4food
8.6crew
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

Delta is one of the best airlines I have flown

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

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Cold air blew constantly on my legs almost making me numb.

Last minute flights from St. Louis to Simpson Bay

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Simpson Bay that are departing in the next 10 days.
4/28Sun
multi-stopAmerican Airlines
7h 16mSTL-SXM
4/30Tue
multi-stopAmerican Airlines
9h 41mSXM-STL
$862
4/28Sun
multi-stopAmerican Airlines
19h 48mSTL-SXM
4/30Tue
multi-stopAmerican Airlines
19h 15mSXM-STL
$866

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St. Louis - Simpson Bay Flights

Departure:

St. Louis (STL)United States

Destination:

Simpson Bay (SXM)St. Maarten

Cabin classes: