$131 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 9/23. 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$474
Santo Domingo
Santo Domingo2 stops$560
Montego Bay
Montego Bay1 stop$502
Oranjestad
Oranjestad1 stop$539
Nassau
Nassau1 stop$378
Kingston
Kingston2 stops$636
Simpson Bay
Simpson Bay1 stop$476
Providenciales
Providenciales1 stop$463
Port of Spain
Port of Spain1 stop$630
Bridgetown
Bridgetown1 stop$584
George Town
George Town1 stop$464
Willemstad
Willemstad2 stops$575
Aguadilla
Aguadilla1 stop$336
Puerto Plata
Puerto Plata2 stops$675
St. John's
St. John's1 stop$640
Punta Cana
Punta Cana1 stop$474
Santo Domingo
Santo Domingo2 stops$560
Montego Bay
Montego Bay1 stop$502
Oranjestad
Oranjestad1 stop$539
Nassau
Nassau1 stop$378
Kingston
Kingston2 stops$636
Simpson Bay
Simpson Bay1 stop$476
Providenciales
Providenciales1 stop$463
Port of Spain
Port of Spain1 stop$630
Bridgetown
Bridgetown1 stop$584
George Town
George Town1 stop$464
Willemstad
Willemstad2 stops$575
Aguadilla
Aguadilla1 stop$336
Puerto Plata
Puerto Plata2 stops$675
St. John's
St. John's1 stop$640

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

Mon, Nov 2 - Fri, Nov 6
American Airlines Logo
6:45 pm - 3:15 pm
STL
-
STT
18h 30m
2 stops
American Airlines Logo
4:18 pm - 8:27 am
STT
-
STL
18h 09m
2 stops
$284American Airlines
Sat, Nov 7 - Sat, Nov 14
Southwest Logo
10:55 am - 5:15 pm
STL
-
SJU
4h 20mnonstop
Southwest Logo
10:55 am - 1:55 pm
SJU
-
STL
5h 00mnonstop
$327Southwest
Wed, Aug 12 - Wed, Aug 19
Frontier Logo
4:57 pm - 12:41 am
STL
-
SJU
30h 44m
2 stops
Frontier Logo
8:57 pm - 4:11 pm
SJU
-
STL
20h 14m
1 stop
$329Frontier
Mon, Aug 10 - Fri, Aug 14
Frontier Logo
4:57 pm - 12:41 am
STL
-
SJU
30h 44m
2 stops
Frontier Logo
10:48 pm - 11:59 pm
SJU
-
STL
26h 11m
1 stop
$345Frontier
Tue, Aug 18 - Mon, Aug 24
Delta Logo
6:00 am - 1:34 pm
STL
-
STT
6h 34m
1 stop
Delta Logo
2:49 pm - 11:58 pm
STT
-
STL
10h 09m
1 stop
$442Delta
Mon, Oct 26 - Sun, Nov 1
Delta Logo
6:00 am - 1:39 pm
STL
-
STT
6h 39m
1 stop
Delta Logo
3:49 pm - 8:49 pm
STT
-
STL
7h 00m
1 stop
$445Delta
Sat, Oct 17 - Fri, Oct 23
United Airlines Logo
5:36 pm - 11:43 am
STL
-
MBJ
18h 07m
2 stops
United Airlines Logo
12:52 pm - 9:09 pm
MBJ
-
STL
8h 17m
1 stop
$510United Airlines
Sun, Dec 13 - Sat, Dec 19
United Airlines Logo
7:04 pm - 2:29 pm
STL
-
MBJ
18h 25m
2 stops
United Airlines Logo
3:20 pm - 10:06 pm
MBJ
-
STL
7h 46m
1 stop
$524United Airlines
Sun, Nov 1 - Thu, Nov 5
Air Canada Logo
4:05 pm - 12:25 pm
STL
-
PLS
19h 20m
1 stop
Air Canada Logo
1:20 pm - 3:26 pm
PLS
-
STL
27h 06m
1 stop
$541Air Canada
Sun, Nov 1 - Thu, Nov 5
Air Canada Logo
4:05 pm - 1:15 pm
STL
-
PLS
44h 10m
2 stops
Air Canada Logo
1:20 pm - 3:26 pm
PLS
-
STL
27h 06m
1 stop
$544Air 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 5 days was to San Juan, at $423 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 5 days was $568.

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 $596 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 $596.

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 $714, 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 July, when tickets cost $104 (return) on average. On the other hand, the most expensive months are June and January, when the average cost of round-trip tickets is $1,073 and $987 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 3 weeks before departure, which saves you about 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$131
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 3% 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.

  • How many flights are there between St. Louis and Caribbean per day?

    Each day, there are between 1 and 4 nonstop flights that take off from St. Louis and land in Caribbean, with an average flight time of 4h 17m. The most common departure time is 9:00 am and most flights take off in the morning, while the most flights land at Punta Cana. Each week, there are 7 flights. The most frequent day of departure is Saturday, when 57% of all weekly flights depart. The fewest flights depart on a Monday.

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.
7.9
SouthwestOverall score based on 4243 reviews
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
8.1Boarding
Airline reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

6.0 GoodAnonymous, Mar 2026
STL - HOU
Read more Southwest reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Very good. Sad to learn Southwest is going start to charge for bags

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

The flight was promptly on schedule and Southwest delivered everything they promised. No excuses for any shortfalls just 100% ownership of their responsibilities and business. The boarding and seating policy is a complete shambles. What started out as a great idea when Southwest first hit the market has been turned into a disaster due to the lack of integrity in many of the people who fly Southwest and take advantage of Southwest generosity at the expense of their fellow passengers.

Crew was excellent - Plane was fine. Media was good, could use more kid shows; Not a fan of the brownie brittle -- snack could be slightly better.

Left on time and arrived early. Brand new plane and no parts missing. Comfortable seats. The actual Captain spoke prior to the flight and reassured everyone about safety. Crew was so nice and fun. Perfect flight!

Everything went smoothly and the plane wasn’t full. It was delayed though. The delay was increased due to a crew change which was frustrating.

Love Southwest! Always a good trip with a happy crew who goes out of their way to be kind and fun.

friendly staff for the most part. they thought we were going to have bad turbulence so no drink service. there wasn't any turbulence. Iwish you had a choice of snacks

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Flight was canceled 12 hours before take-off due to “weather”

We were told our seats were switched which put us in row 1 instead of 12. We were not able to keep our personal items with us. This caused us not to be able to have our gum to pop our ears and we weren’t able to get our iPads out due to the seat belt sign never turning off.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

Boarding process was good. I was assigned the most rear (non-reclining) seat in both directions, which wasn't great.

Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

I have come to accept Frontier as an absolute no-frills airline, paying for everything I want. A 4.5-hour flight should provide me with a complimentary beverage—rather, $4.9x for a soda. Or a bottle of water ought to be extended at no cost. 4 beers are on the menu, but only 1 type of beer is available (at $9.95). Also, so many restrictions to using a voucher from Barclay‘s Credit Card. Finally, try to reach a live agent for Frontier- impossible!

Everything you need to know for your flight to Caribbean

Information on your arrival and departure airports