$107 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 12/22. 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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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

Thu, Nov 13 - Sun, Nov 16
Frontier Logo
3:59 am - 10:20 amSJU-STL
8h 21m1 stop
Frontier Logo
2:12 pm - 2:54 amSTL-SJU
10h 42m1 stop
$168Frontier
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Thu, Dec 4 - Mon, Dec 8
Delta Logo
6:38 pm - 11:42 pmSJU-STL
7h 04m1 stop
Delta Logo
6:00 am - 2:14 pmSTL-SJU
6h 14m1 stop
$225Delta
Find Deal
Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
2:36 pm - 9:28 pmSJU-STL
8h 52m2 stops
American Airlines Logo
4:36 pm - 10:09 amSTL-SJU
15h 33m1 stop
$230American Airlines
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Thu, Dec 4 - Mon, Dec 8
Southwest Logo
9:40 am - 7:30 pmSJU-STL
11h 50m1 stop
Southwest Logo
8:15 am - 9:30 pmSTL-SJU
11h 15m1 stop
$264Southwest
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Thu, Nov 20 - Mon, Nov 24
Frontier Logo
6:01 am - 11:57 pmSJU-STL
19h 56m2 stops
Frontier Logo
4:13 pm - 2:54 amSTL-SJU
8h 41m1 stop
$272Frontier
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Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
8:19 am - 9:31 pmSJU-STL
15h 12m2 stops
American Airlines Logo
11:46 am - 11:33 pmSTL-SJU
9h 47m1 stop
$285American Airlines
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Wed, Feb 25 - Tue, Mar 3
United Airlines Logo
2:05 am - 12:25 pmSJU-STL
12h 20m2 stops
United Airlines Logo
10:10 am - 9:26 pmSTL-SJU
9h 16m1 stop
$293United Airlines
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Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
7:45 am - 3:38 pmSJU-STL
9h 53m1 stop
United Airlines Logo
9:55 am - 10:22 pmSTL-SJU
10h 27m2 stops
$315United Airlines
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Tue, Jan 20 - Fri, Jan 23
Delta Logo
6:27 pm - 11:39 pmSJU-STL
7h 12m1 stop
Delta Logo
3:45 pm - 11:44 pmSTL-SJU
5h 59m1 stop
$334Delta
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Thu, Dec 25 - Sat, Jan 3
Southwest Logo
6:40 am - 3:50 pmSJU-STL
11h 10m1 stop
Southwest Logo
9:45 am - 12:30 amSTL-SJU
12h 45m1 stop
$370Southwest
Find Deal

Everything you should know

Cheapest round-trip
$168
Overall average: $485
Frontier
Thu 11/13Sun 11/16
SJU - STL • 1 stop
Cheapest one-way
$107
Typical prices: $144-$294
Frontier
Mon 12/22
SJU - STL • 2 stops
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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 St. Louis!
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$107
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly and prices are also 10% 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 airlines 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.
7.9
DeltaOverall score based on 7992 reviews
8.2Boarding
8.5Crew
7.3Food
7.9Comfort
7.9Entertainment
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Nice comfortable flight from Barcelona back to the states. The premium economy offers the extra room we need for my husband. The food was good and our flight attendants were excellent.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

The only thing to like was that we eventually got to our destination

Delayed delayed delayed and no offer for food or vouchers

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

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