STL - SXM

$519 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 1/13. 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 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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Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

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

Tue, Jan 13 - Fri, Jan 23
Multiple Airlines Logo
4:05 pm - 4:00 pmSTL-SXM
21h 55m1 stop
Multiple Airlines Logo
4:28 pm - 1:53 pmSXM-STL
23h 25m1 stop
$519Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
American Airlines Logo
3:03 pm - 1:37 pmSTL-SXM
21h 34m2 stops
American Airlines Logo
3:20 pm - 8:09 amSXM-STL
18h 49m2 stops
$522American Airlines
Find Deal
Tue, Jan 13 - Fri, Jan 23
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
$527Air Canada
Find Deal
Sat, Oct 11 - Sat, Oct 18
Multiple Airlines Logo
7:15 pm - 7:30 pmSTL-SXM
23h 15m3 stops
Multiple Airlines Logo
3:05 pm - 4:35 pmSXM-STL
26h 30m3 stops
$535Multiple Airlines
Find Deal
Sun, Jan 18 - Fri, Jan 23
Air Canada Logo
4:05 pm - 2:40 pmSTL-SXM
44h 35m2 stops
Air Canada Logo
5:00 pm - 3:29 pmSXM-STL
24h 29m1 stop
$537Air Canada
Find Deal
Thu, Oct 2 - Mon, Oct 6
Multiple Airlines Logo
9:50 am - 2:00 pmSTL-SXM
27h 10m3 stops
Multiple Airlines Logo
3:05 pm - 12:00 pmSXM-STL
21h 55m3 stops
$580Multiple Airlines
Find Deal
Tue, Jan 6 - Tue, Jan 13
American Airlines Logo
5:23 am - 1:55 pmSTL-SXM
6h 32m1 stop
American Airlines Logo
3:20 pm - 9:48 pmSXM-STL
8h 28m1 stop
$583American Airlines
Find Deal
Tue, Jan 13 - Fri, Jan 23
American Airlines Logo
5:54 pm - 1:55 pmSTL-SXM
18h 01m2 stops
American Airlines Logo
3:20 pm - 11:46 pmSXM-STL
10h 26m1 stop
$588American Airlines
Find Deal
Sat, Jan 31 - Sat, Feb 7
United Airlines Logo
6:30 am - 3:57 pmSTL-SXM
7h 27m1 stop
United Airlines Logo
5:00 pm - 9:48 amSXM-STL
18h 48m1 stop
$633United Airlines
Find Deal
Fri, Oct 31 - Wed, Nov 5
Delta Logo
6:00 am - 1:49 pmSTL-SXM
6h 49m1 stop
Delta Logo
4:14 pm - 10:04 pmSXM-STL
7h 50m1 stop
$3,352Delta
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $522 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 23% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$519
Overall average: $654
Multiple Airlines
Tue 1/13Fri 1/23
STL - SXM • 1 stop
Cheapest one-way
Multiple Airlines
Tue 9/16
STL - SXM • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Simpson Bay!
Booking Insights

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 $563 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,055 and $813 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 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$519
Best time to beat the crowds with an average 23% 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 $519 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, Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Simpson Bay, with Star Alliance 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 $694 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $722 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.

Reviews of the 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.
7.9
DeltaOverall score based on 7954 reviews
7.9Comfort
7.3Food
8.5Crew
8.2Boarding
7.9Entertainment
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

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

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