$87 Find Cheap Flights from Caribbean Islands to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 2/25. 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, 0 bags

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Everything you should know

Cheapest round-trip
$223
Typical prices: $255-$455
Frontier
Sat 2/14Wed 2/18
SJU - STL • 1 stop
Cheapest one-way
$87
Typical prices: $112-$161
Frontier
Wed 2/25
SJU - STL • 1 stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Caribbean Islands to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Caribbean Islands to St. Louis 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 Caribbean Islands to St. Louis

Sat, Feb 14 - Wed, Feb 18
Frontier Logo
1:52 pm - 11:59 pm
SJU
-
STL
12h 07m
1 stop
Frontier Logo
3:49 pm - 2:53 am
STL
-
SJU
9h 04m
1 stop
$223Frontier
Mon, Apr 20 - Sat, Apr 25
Frontier Logo
3:19 pm - 11:19 pm
SJU
-
STL
9h 00m
1 stop
Frontier Logo
4:55 pm - 2:01 am
STL
-
SJU
8h 06m
1 stop
$224Frontier
Fri, Feb 13 - Mon, Feb 16
Multiple Airlines Logo
4:16 pm - 6:51 am
SJU
-
STL
16h 35m
1 stop
Multiple Airlines Logo
3:49 pm - 10:17 am
STL
-
SJU
16h 28m
1 stop
$236Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
5:25 pm - 11:59 pm
SJU
-
STL
8h 34m
1 stop
Frontier Logo
3:49 pm - 2:53 am
STL
-
SJU
9h 04m
1 stop
$242Frontier
Tue, Apr 21 - Sat, Apr 25
Frontier Logo
3:19 pm - 11:19 pm
SJU
-
STL
9h 00m
1 stop
Frontier Logo
4:55 pm - 2:01 am
STL
-
SJU
8h 06m
1 stop
$243Frontier
Fri, Feb 27 - Mon, Mar 2
American Airlines Logo
6:00 am - 12:33 pm
SJU
-
STL
8h 33m
1 stop
American Airlines Logo
2:19 pm - 5:24 am
STL
-
SJU
13h 05m
1 stop
$246American Airlines
Thu, Feb 12 - Mon, Feb 16
Multiple Airlines Logo
4:11 pm - 6:51 am
SJU
-
STL
16h 40m
1 stop
Multiple Airlines Logo
3:49 pm - 10:17 am
STL
-
SJU
16h 28m
1 stop
$255Multiple Airlines
Wed, Feb 11 - Sat, Feb 14
Frontier Logo
5:25 pm - 10:27 pm
SJU
-
STL
7h 02m
1 stop
Frontier Logo
3:49 pm - 2:53 am
STL
-
SJU
9h 04m
1 stop
$264Frontier
Fri, Apr 3 - Fri, Apr 10
American Airlines Logo
4:50 pm - 10:59 am
AUA
-
STL
19h 09m
2 stops
American Airlines Logo
6:54 pm - 1:11 pm
STL
-
AUA
17h 17m
2 stops
$601American Airlines
Fri, Apr 3 - Fri, Apr 10
American Airlines Logo
4:50 pm - 11:58 pm
AUA
-
STL
8h 08m
1 stop
American Airlines Logo
7:00 am - 3:04 pm
STL
-
AUA
7h 04m
1 stop
$716American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$87
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from San Juan to St. Louis

FAQs for booking flights from Caribbean Islands to St. Louis

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

    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 Caribbean Islands to St. Louis.

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

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

    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 St. Louis with an airline and back to Caribbean Islands with another airline.

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

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

Reviews of the top airline flying from Caribbean Islands to St. Louis

 
Need help choosing which airline to fly with from Caribbean Islands to St. Louis? 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.
7.2
American AirlinesOverall score based on 11211 reviews
7.2Comfort
7.5Boarding
6.9Entertainment
8.0Crew
6.4Food
Airline reviews

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

4.0 OkayBrandle, Jan 2026
DFW - MCO
Read more American Airlines reviews

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

We were upgraded to Business Class. So comfortable with great service and food options

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

St. Louis (STL)