$513 Find Cheap Flights from St. Louis to Saint Martin Island

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 Saint Martin Island departing on 10/11. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Saint Martin Island

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Saint Martin Island, 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 Saint Martin Island, as well as popular online travel agencies
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Best Saint Martin Island Flight Deals from St. Louis

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Simpson Bay
Simpson Bay2 stops$513
Simpson Bay
Simpson Bay2 stops$513

Cheap Flights from St. Louis to Saint Martin Island

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Saint Martin Island 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Saint Martin Island

Sat, Oct 11 - Sat, Oct 18
American Airlines Logo
4:25 pm - 3:10 pmSTL-SXM
21h 45m2 stops
American Airlines Logo
4:25 pm - 5:28 pmSXM-STL
26h 03m1 stop
$513American Airlines
Find Deal
Fri, Aug 29 - Mon, Sep 1
American Airlines Logo
4:32 pm - 1:45 pmSTL-SXM
20h 13m2 stops
American Airlines Logo
4:30 pm - 9:29 amSXM-STL
17h 59m2 stops
$570American Airlines
Find Deal
Sun, Jul 27 - Sun, Aug 3
 Logo
5:26 pm - 2:00 pmSTL-SXM
19h 34m1 stop
 Logo
8:35 pm - 4:31 pmSXM-STL
44h 56m2 stops
Fri, Aug 29 - Mon, Sep 1
 Logo
9:50 am - 2:00 pmSTL-SXM
27h 10m3 stops
 Logo
3:05 pm - 12:10 pmSXM-STL
22h 05m3 stops
Sat, Oct 11 - Sat, Oct 18
Delta Logo
6:00 am - 1:47 pmSTL-SXM
6h 47m1 stop
Delta Logo
3:15 pm - 9:59 pmSXM-STL
7h 44m1 stop
$740Delta
Find Deal
Sat, Oct 11 - Sat, Oct 18
Delta Logo
6:00 am - 1:47 pmSTL-SXM
6h 47m1 stop
Delta Logo
3:15 pm - 9:59 pmSXM-STL
7h 44m1 stop
$750Delta
Find Deal
Sat, Dec 27 - Mon, Jan 5
United Airlines Logo
11:45 am - 1:44 pmSTL-SXM
23h 59m2 stops
United Airlines Logo
4:55 pm - 10:27 amSXM-STL
19h 32m2 stops
$1,517United Airlines
Find Deal
Tue, Dec 23 - Mon, Jan 5
United Airlines Logo
3:15 pm - 1:51 pmSTL-SXM
20h 36m2 stops
United Airlines Logo
4:55 pm - 10:27 amSXM-STL
19h 32m2 stops
$1,592United Airlines
Find Deal
Thu, Dec 25 - Mon, Jan 5
Air Canada Logo
4:05 pm - 4:00 pmSTL-SXM
21h 55m1 stop
Air Canada Logo
5:00 pm - 3:29 pmSXM-STL
24h 29m1 stop
$1,780Air Canada
Find Deal
Mon, Dec 22 - Mon, Jan 5
Air Canada Logo
4:05 pm - 2:40 pmSTL-SXM
20h 35m2 stops
Air Canada Logo
5:00 pm - 3:29 pmSXM-STL
24h 29m1 stop
$1,885Air Canada
Find Deal
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KAYAK's insights & trends for St. Louis to Saint Martin Island flights

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

Can I save money by flying with a layover from St. Louis to Saint Martin Island?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $615, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from St. Louis to Saint Martin Island?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Saint Martin Island, 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 Saint Martin Island is August, when tickets cost $518 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $1,170 and $809 respectively.

How far in advance should I book a flight from St. Louis to Saint Martin Island?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Saint Martin Island, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Saint Martin Island, you should book around 6 weeks before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.


Good to know

Low seasonAugust
High seasonJanuary
Cheapest flight$513
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from St. Louis to Simpson Bay

FAQs - booking Saint Martin Island flights

  • How does KAYAK find such low prices on flights from St. Louis to Saint Martin Island?

    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 Saint Martin Island.

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

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

    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 from St. Louis to Saint Martin Island with an airline and back with another airline.

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

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

  • What is the cheapest time of day to fly to Saint Martin Island?

    The cheapest time of day to fly to Saint Martin Island is generally at night, when round-trip flights cost $638 on average. Morning departures are around 8% cheaper than evening flights, on average. The most expensive time of day to fly to Saint Martin Island is generally in the evening, which is peak travel time and where the average cost of a ticket is $726.

Reviews of the top airlines flying from St. Louis to Saint Martin Island

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Saint Martin Island. 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 Saint Martin Island? 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 7953 reviews
8.2Boarding
8.5Crew
7.3Food
7.9Entertainment
7.9Comfort
Airline reviews

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

4.0 OkayAnonymous, Jul 2025ATL - ROC
Read more Delta reviews

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

this crew didn't care much. bumping carts into seats more times than i care to remember

Very late arrival at PWM. Late jet getting to ATL. Equipment problem with aircraft - could not get enough water onto plane., Another delay getting FAA approval for flight with bottled H2O. Not the crew’s problem.

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

Great. Very smooth. Plenty of information. However, wish they would give out a menu in advance of making a dinner choice like other international airlines. The flight attendant says chicken or pasta and there are details about ingredients or spices requiring the passenger to ask which requires the flight attendant to answer many times. So easy to solve this problem. P

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Flight was delayed again and again ultimately almost three hours getting us to our location at close to midnight by the time we got in and out of airport to destination. I had taken time off work to enjoy an evening at destination and that was now wasted

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

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