$108 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 11/8. 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 St. Louis

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Fri, Oct 24 - Mon, Oct 27
Delta Logo
5:43 pm - 11:41 pmSJU-STL
6h 58m1 stop
Delta Logo
6:00 am - 4:33 pmSTL-SJU
9h 33m1 stop
$225Delta
Find Deal
Wed, Oct 29 - Mon, Nov 3
American Airlines Logo
11:56 am - 11:05 pmSJU-STL
12h 09m2 stops
American Airlines Logo
6:00 am - 11:52 pmSTL-SJU
15h 52m1 stop
$231American Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 4
Frontier Logo
9:26 pm - 3:04 pmSJU-STL
18h 38m2 stops
Frontier Logo
7:55 pm - 2:11 pmSTL-SJU
17h 16m2 stops
$260Frontier
Find Deal
Wed, Oct 1 - Sat, Oct 11
Frontier Logo
9:26 pm - 3:04 pmSJU-STL
18h 38m2 stops
Frontier Logo
4:33 pm - 2:30 amSTL-SJU
8h 57m1 stop
$268Frontier
Find Deal
Thu, Feb 19 - Mon, Feb 23
Delta Logo
3:30 pm - 11:40 pmSJU-STL
10h 10m1 stop
Delta Logo
10:00 am - 8:30 pmSTL-SJU
8h 30m1 stop
$269Delta
Find Deal
Thu, Sep 25 - Sat, Oct 11
Frontier Logo
9:26 pm - 1:02 pmSJU-STL
16h 36m2 stops
Frontier Logo
4:33 pm - 2:30 amSTL-SJU
8h 57m1 stop
$273Frontier
Find Deal
Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
4:45 pm - 9:27 amSJU-STL
18h 42m2 stops
American Airlines Logo
11:18 am - 10:35 pmSTL-SJU
9h 17m2 stops
$285American Airlines
Find Deal
Tue, Nov 11 - Sat, Nov 15
Southwest Logo
8:55 am - 7:15 pmSJU-STL
12h 20m1 stop
Southwest Logo
10:25 am - 6:40 pmSTL-SJU
6h 15m1 stop
$294Southwest
Find Deal
Wed, Oct 22 - Sun, Oct 26
United Airlines Logo
1:05 am - 10:49 amSJU-STL
10h 44m2 stops
United Airlines Logo
6:30 am - 2:40 pmSTL-SJU
7h 10m1 stop
$295United Airlines
Find Deal
Fri, Oct 17 - Tue, Oct 21
United Airlines Logo
1:05 am - 2:27 pmSJU-STL
14h 22m2 stops
United Airlines Logo
6:15 am - 3:42 pmSTL-SJU
8h 27m1 stop
$315United Airlines
Find Deal

Everything you should know

Cheapest round-trip
$225
Overall average: $391
Delta
Fri 10/24Mon 10/27
SJU - STL • 1 stop
Cheapest one-way
$108
Typical prices: $171-323
Southwest
Sat 11/8
SJU - STL • Non-stop
Start a new search
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$108
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 1% 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 7954 reviews
7.9Comfort
7.9Entertainment
7.3Food
8.5Crew
8.2Boarding
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.

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.

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.

The airport crew helped a lot, what I didn’t like? We were not informed that we needed to pick our luggage’s, if the crew at the luggage center didn’t tell me I would have been home without my belongings, I was heading out to my next connecting flight while looking for what gate to go to, I asked one of the crews for help, he told me and he also told me to not forget to grab my luggage’s which was chocking, because on my way out the country that wasn’t required, I just hope none of your customers lost their luggage’s because of this.

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

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

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

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

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.

The delayed flight was awful and moving the departure gate twice was annoying

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

The flight was on time and crew were nice, seats were tight and there was entertainment available

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.

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.

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
Glencoe
Shrewsbury

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

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

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.