STL - SXM

$610 Find Cheap Flights from St. Louis to Simpson Bay

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 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.
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KAYAK searches 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
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Cheap Flights from St. Louis to Simpson Bay

 
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.

Recent round-trip flight deals from St. Louis to Simpson Bay

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Simpson Bay.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
7:00 pm - 3:10 pmSTL-SXM
19h 10m2 stops
American Airlines Logo
2:40 pm - 7:56 amSXM-STL
18h 16m2 stops
$610American Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
Delta Logo
6:00 am - 1:54 pmSTL-SXM
6h 54m1 stop
Delta Logo
3:25 pm - 11:51 pmSXM-STL
9h 26m1 stop
$612Delta
Find Deal
Fri, Jun 6 - Thu, Jun 12
American Airlines Logo
5:25 am - 3:05 pmSTL-SXM
8h 40m1 stop
American Airlines Logo
4:05 pm - 8:05 amSXM-STL
17h 00m2 stops
$617American Airlines
Find Deal
Fri, Jun 6 - Thu, Jun 12
Delta Logo
6:00 am - 2:00 pmSTL-SXM
7h 00m1 stop
Delta Logo
3:25 pm - 11:36 pmSXM-STL
9h 11m1 stop
$633Delta
Find Deal
Sun, Jun 15 - Wed, Jun 18
American Airlines Logo
5:29 pm - 1:20 pmSTL-SXM
18h 51m2 stops
American Airlines Logo
4:05 pm - 12:54 pmSXM-STL
21h 49m2 stops
$638American Airlines
Find Deal
Mon, Jun 16 - Fri, Jun 20
American Airlines Logo
5:25 am - 3:05 pmSTL-SXM
8h 40m1 stop
American Airlines Logo
4:05 pm - 11:59 pmSXM-STL
8h 54m1 stop
$650American Airlines
Find Deal
Mon, Jun 16 - Fri, Jun 20
American Airlines Logo
8:01 pm - 3:05 pmSTL-SXM
18h 04m2 stops
American Airlines Logo
2:45 pm - 8:41 amSXM-STL
18h 56m2 stops
$655American Airlines
Find Deal
Sun, Jul 6 - Sun, Jul 13
American Airlines Logo
12:48 pm - 1:25 pmSTL-SXM
23h 37m1 stop
American Airlines Logo
2:15 pm - 11:59 pmSXM-STL
10h 44m1 stop
$659American Airlines
Find Deal
Sun, Jul 6 - Sun, Jul 13
United Airlines Logo
8:05 am - 12:29 pmSTL-SXM
27h 24m2 stops
United Airlines Logo
3:55 pm - 3:30 pmSXM-STL
24h 35m2 stops
$700United Airlines
Find Deal
Sat, Jun 14 - Wed, Jun 18
United Airlines Logo
1:00 pm - 12:29 pmSTL-SXM
22h 29m1 stop
United Airlines Logo
3:55 pm - 3:30 pmSXM-STL
24h 35m2 stops
$711United Airlines
Find Deal
Sat, Jun 14 - Wed, Jun 18
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KAYAK's insights & trends for St. Louis to Simpson Bay flights

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 round-trip 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 August, where tickets cost $511 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $1,157 and $809 respectively.

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

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 Simpson Bay, 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 Simpson Bay, 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$610
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 11% 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 $610 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 $714 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 $681 and an overall rating of 7.2.

  • 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.

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 7934 reviews
8.2Boarding
7.9Entertainment
8.5Crew
7.9Comfort
7.3Food
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Everything you need to know for your flight from St. Louis to Simpson Bay

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