$87 Find Cheap Flights from St. Louis to Caribbean

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Caribbean departing on 5/15. 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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Cheap Flights from St. Louis to Caribbean

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Punta Cana
Punta Cana1 stop$252
Santo Domingo
Santo Domingo2 stops$583
Montego Bay
Montego Bay1 stop$400
Oranjestad
Oranjestad1 stop$397
Nassau
Nassau1 stop$376
Kingston
Kingston1 stop$549
Simpson Bay
Simpson Bay1 stop$393
Providenciales
Providenciales1 stop$500
Port of Spain
Port of Spain1 stop$630
Bridgetown
Bridgetown2 stops$486
George Town
George Town1 stop$461
Willemstad
Willemstad2 stops$490
Puerto Plata
Puerto Plata1 stop$750
Aguadilla
Aguadilla1 stop$212
St. John's
St. John's1 stop$690
Punta Cana
Punta Cana1 stop$252
Santo Domingo
Santo Domingo2 stops$583
Montego Bay
Montego Bay1 stop$400
Oranjestad
Oranjestad1 stop$397
Nassau
Nassau1 stop$376
Kingston
Kingston1 stop$549
Simpson Bay
Simpson Bay1 stop$393
Providenciales
Providenciales1 stop$500
Port of Spain
Port of Spain1 stop$630
Bridgetown
Bridgetown2 stops$486
George Town
George Town1 stop$461
Willemstad
Willemstad2 stops$490
Puerto Plata
Puerto Plata1 stop$750
Aguadilla
Aguadilla1 stop$212
St. John's
St. John's1 stop$690

Book Cheap St. Louis to Caribbean Plane Tickets

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

Fri, May 8 - Sun, May 10
Frontier Logo
4:19 pm - 2:08 am
STL
-
SJU
8h 49m
1 stop
Frontier Logo
6:00 am - 12:21 am
SJU
-
STL
19h 21m
1 stop
$176Frontier
Sat, May 2 - Fri, May 8
Frontier Logo
4:59 pm - 2:01 am
STL
-
SJU
8h 02m
1 stop
Frontier Logo
6:09 pm - 12:21 am
SJU
-
STL
7h 12m
1 stop
$186Frontier
Sun, May 10 - Wed, May 13
United Airlines Logo
6:30 am - 2:57 pm
STL
-
NAS
7h 27m
1 stop
United Airlines Logo
3:59 pm - 10:45 pm
NAS
-
STL
7h 46m
1 stop
$376United Airlines
Sun, May 10 - Wed, May 13
American Airlines Logo
7:12 am - 4:34 pm
STL
-
NAS
8h 22m
2 stops
American Airlines Logo
8:18 am - 10:24 pm
NAS
-
STL
15h 06m
1 stop
$380American Airlines
Wed, May 13 - Wed, May 20
American Airlines Logo
6:00 am - 4:34 pm
STL
-
NAS
9h 34m
2 stops
American Airlines Logo
8:18 am - 4:00 pm
NAS
-
STL
8h 42m
2 stops
$385American Airlines
Fri, May 29 - Sat, Jun 6
Air Canada Logo
7:05 am - 2:15 pm
STL
-
AUA
30h 10m
1 stop
Air Canada Logo
3:05 pm - 12:06 pm
AUA
-
STL
22h 01m
1 stop
$397Air Canada
Mon, May 11 - Sat, May 16
Delta Logo
6:00 am - 4:35 pm
STL
-
NAS
9h 35m
1 stop
Delta Logo
6:00 pm - 11:59 pm
NAS
-
STL
6h 59m
1 stop
$411Delta
Mon, May 11 - Sat, May 16
United Airlines Logo
6:30 am - 2:57 pm
STL
-
NAS
7h 27m
1 stop
United Airlines Logo
1:15 pm - 9:13 pm
NAS
-
STL
8h 58m
2 stops
$415United Airlines
Mon, May 4 - Tue, May 12
Delta Logo
6:50 pm - 12:03 pm
STL
-
NAS
16h 13m
2 stops
Delta Logo
3:29 pm - 9:38 pm
NAS
-
STL
7h 09m
1 stop
$417Delta
Fri, May 29 - Sat, Jun 6
Air Canada Logo
7:05 am - 2:15 pm
STL
-
AUA
30h 10m
1 stop
Air Canada Logo
3:05 pm - 8:25 pm
AUA
-
STL
30h 20m
2 stops
$442Air Canada
Booking Insights

KAYAK's insights & trends for St. Louis to Caribbean flights

Get data-powered insights and trends into flights from St. Louis to Caribbean to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest St. Louis to Caribbean flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Caribbean from St. Louis found in the last 72 hours was to San Juan, at $496 round-trip. The most popular route is from St. Louis (STL) to Punta Cana (PUJ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $546.

What is the cheapest time of day to fly to Caribbean?

The average price for all round-trip flights from St. Louis to Caribbean depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Caribbean is generally in the morning, when round-trip flights cost $636 on average. The most expensive time of day to fly to Caribbean is generally in the morning, which is peak travel time and where the average cost of a ticket is $636.

Can I save money by flying with a layover from St. Louis to Caribbean?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $699, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from St. Louis to Caribbean?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Caribbean, 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 Caribbean is September, when tickets cost $219 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $615 and $499 respectively.

How far in advance should I book a flight from St. Louis to Caribbean?

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 Caribbean, 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 Caribbean, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$87
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from St. Louis to San Juan

FAQs - booking Caribbean flights

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

    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 Caribbean.

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

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

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

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

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

Reviews of the top 5 airlines serving from St. Louis to Caribbean

 
Need help choosing which airline to fly with from St. Louis to Caribbean? 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 4328 reviews
8.6Crew
8.0Comfort
7.0Food
8.1Boarding
7.5Entertainment
Airline reviews

The new boarding process was easy and straightforward. Very pleasant.

10.0 ExcellentAnonymous, Apr 2026
LAS - OKC
Read more Southwest reviews

The new boarding process was easy and straightforward. Very pleasant.

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

It was as expected and I was grateful for the wheel chair help and ease of use.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

The new seat assignment thing is wierd. If you don’t pay for a seat they always assign you a middle seat regardless of how many people are on the flight. Idk… the new company that bought Southwest is trying to make it more profitable, but I’m just not seeing it. The flight attendants aren’t having as much fun anymore. It just feels like the airline is slowly dying. IMO. We shall see if Southwest is the next Toy’s R Us.

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Communication about the delayed flight was poor. We were told to move gates three times but that was bad information. We went from gate 128 to gate 126 and then to gate 123 and back to gate 126. Communication about the delay was bad. Ended up being 1 1/2 hour late getting home.

Plane was late. Zero service for 2+ hour flight and it was not that bumpy.

Boarding was good. The flight was on time ( arrival was 20 minutes early). Inflight service was average ( US airlines have not mastered the skills of customer service yet). The food was mediocre. “ breakfast “ was downright awful and insulting. It was a piece of dough with mon descript filling that was supposed to be cheese omelette).

The tray table was broken and the food was terrible.

The gentleman at the gate I think his name is RIE was exceptional

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

No entertainment. Plane was so small had to pink tag a carry on ive used for 20 years easily on board. The fact the flight got in at midnight, had to wait for crew in fort wayne to allow the plane to approach the gate, THEN had to wait for bag on jet bridge made experience irritating at best.

Crew was great. Near on time departure and early arrival. Snacks are always meh. Not a fan of the "pay for everything including miles " proposal unless base flight rate going to be 100 bucks.

Would have been better if there was a nonstop flight from Tampa to Norfolk or Tampa to New Port News.

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

The flight was smooth, the crew was great but the plane was quite old

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

Overall flight was ok. Flight attendant was receptive to assisting passengers with tight connections.

I almost missed my flight and they helped me out enormously

Business class was very good, one of my best flights

The "on the ground" A/C was not working. It was so hot while waiting to get in the air, a passenger from the rear of the plan declared "I just can't!" and waited in the gangway until time to close the doors. It was miserable. But the crew were champs and had an amazing attitude. I know they were as miserable as we were but didn't let that affect their performance.

The captain announced to the cabin there would be a delay because they observed a "cut" on a tire during precheck that needed to be cleared by maintenance. We were delayed during this inspection and allowed to proceed after maintenance "measured the cut and decided it was acceptable". My complaint is not about the delay or due diligence. I wish the captain had been more generic when making his announcement. I was a nervous wreck all the way to Charlotte worried that we would have a blowout when landing!

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Flight was fine, but not having WiFi was a major negative

Friendly crew is the only nice thing. Seats uncomfortable. Food and snacks horrible. Movies were the same as the first 10 hour flight two weeks before

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Everything you need to know for your flight to Caribbean

Information on your arrival and departure airports