$87 Find Cheap Flights from Caribbean 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 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 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 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 to St. Louis

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Caribbean 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 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Caribbean 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Caribbean to St. Louis

 
Need help choosing which airline to fly with from Caribbean 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.
8.0
SouthwestOverall score based on 4267 reviews
8.1Boarding
7.5Entertainment
7.0Food
8.0Comfort
8.6Crew
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Very convenient considering that is a non-stop flight, but the Aeromexico still has old model planes, so the entertainment was very poor and the space for carry-on luggage was very limited.

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Flight from MEX to ATL had to divert to Tampa. When we got off the plane, there were non directions on what to do. Nearly 30 minutes just standing around. Finally told to go through security with no boarding passes, and turned away. Then told to to go back. Took forever to leave Tampa for ATL. Missed my connection to Harrisburg.

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.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
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Everything you need to know for your flight to St. Louis

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