$100 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 3/17. 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 Cana2 stops$383
Santo Domingo
Santo Domingo1 stop$357
Montego Bay
Montego Bay2 stops$384
Oranjestad
Oranjestad1 stop$390
Nassau
Nassau1 stop$376
Kingston
Kingston2 stops$481
Simpson Bay
Simpson Bay2 stops$447
Providenciales
Providenciales1 stop$363
Port of Spain
Port of Spain1 stop$298
Bridgetown
Bridgetown1 stop$509
George Town
George Town2 stops$322
Willemstad
Willemstad2 stops$570
St. John's
St. John's1 stop$437
Puerto Plata
Puerto Plata1 stop$659
Aguadilla
Aguadilla2 stops$256
Punta Cana
Punta Cana2 stops$383
Santo Domingo
Santo Domingo1 stop$357
Montego Bay
Montego Bay2 stops$384
Oranjestad
Oranjestad1 stop$390
Nassau
Nassau1 stop$376
Kingston
Kingston2 stops$481
Simpson Bay
Simpson Bay2 stops$447
Providenciales
Providenciales1 stop$363
Port of Spain
Port of Spain1 stop$298
Bridgetown
Bridgetown1 stop$509
George Town
George Town2 stops$322
Willemstad
Willemstad2 stops$570
St. John's
St. John's1 stop$437
Puerto Plata
Puerto Plata1 stop$659
Aguadilla
Aguadilla2 stops$256

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

Sat, May 9 - Wed, May 13
Frontier Logo
4:55 pm - 2:01 am
STL
-
SJU
8h 06m
1 stop
Frontier Logo
3:19 pm - 11:19 pm
SJU
-
STL
9h 00m
1 stop
$202Frontier
Sun, May 3 - Wed, May 6
Frontier Logo
4:59 pm - 9:54 am
STL
-
SJU
15h 55m
1 stop
Frontier Logo
6:30 am - 11:19 pm
SJU
-
STL
17h 49m
1 stop
$213Frontier
Wed, Apr 15 - Wed, Apr 22
Delta Logo
1:03 pm - 11:12 pm
STL
-
SJU
9h 09m
1 stop
Delta Logo
6:15 am - 11:56 am
SJU
-
STL
6h 41m
1 stop
$216Delta
Sat, May 9 - Tue, May 12
Frontier Logo
4:55 pm - 2:01 am
STL
-
SJU
8h 06m
1 stop
Frontier Logo
3:08 am - 11:19 pm
SJU
-
STL
21h 11m
1 stop
$221Frontier
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
6:29 am - 10:05 pm
STL
-
SJU
14h 36m
1 stop
American Airlines Logo
7:25 am - 7:30 pm
SJU
-
STL
13h 05m
1 stop
$222American Airlines
Mon, May 11 - Fri, May 15
Southwest Logo
3:25 pm - 11:55 pm
STL
-
SJU
7h 30m
1 stop
Southwest Logo
6:50 am - 1:45 pm
SJU
-
STL
7h 55m
1 stop
$229Southwest
Sat, Apr 18 - Thu, Apr 23
American Airlines Logo
6:11 pm - 11:31 am
STL
-
GCM
17h 20m
2 stops
American Airlines Logo
12:00 pm - 8:30 am
GCM
-
STL
20h 30m
2 stops
$322American Airlines
Tue, Mar 24 - Tue, Mar 31
Delta Logo
6:00 am - 1:18 pm
STL
-
STX
6h 18m
1 stop
Delta Logo
2:24 pm - 11:58 pm
STX
-
STL
10h 34m
1 stop
$336Delta
Sat, Apr 18 - Thu, Apr 23
United Airlines Logo
8:30 am - 3:05 pm
STL
-
GCM
6h 35m
1 stop
United Airlines Logo
1:35 pm - 10:28 pm
GCM
-
STL
8h 53m
1 stop
$342United Airlines
Wed, Apr 15 - Mon, Apr 20
United Airlines Logo
6:00 am - 12:30 pm
STL
-
GCM
6h 30m
1 stop
United Airlines Logo
1:50 pm - 8:25 am
GCM
-
STL
18h 35m
1 stop
$343United Airlines
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 Montego Bay, at $407 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 $466.

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 $617, 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 $543 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 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$100
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 5% 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.

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

    The cheapest time of day to fly to Caribbean is generally in the morning, when round-trip flights cost $646 on average. The most expensive time of day to fly to Caribbean is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $710.

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 4307 reviews
7.0Food
8.1Boarding
8.0Comfort
7.5Entertainment
8.6Crew
Airline reviews

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

4.0 OkayEmma, Mar 2026
LAX - PHX
Read more Southwest reviews

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The last 3 flights between BWI and BDL canceled the beverage service mid- way. Just say up front that the fight is too short. Thanks!

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

I have not flown Southwest in awhile and had a very pleasant experience. From ticketing to boarding to the flight. The flight left on time and landed ahead of schedule. It won't be so long next time!!

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The whole experience was excellent. As it most often is with Delta

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight was warm for first few hours and quite rough

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

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.

My seat was assigned last row behind restrooms No legroom’s I’m very Pettit Still was not comfortable Food choice was excellent

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Overall good. The pilots and flight attendants are excellent! The equipment was the issue on my First flight as they had to wait for a part to be installed. So the take off was at least 30 minutes later.

The worst Airline ever. They centered my second flight and leave me in NY. They don’t have any representatives at the airport and they don’t respond to calls. Basically I got stuck. I will never purchase through there again.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was a train wreck but on an airplane. First off, flight was delayed then we board only to hear two announcements, First weather delays in Orlando and second backup battery warning on emergency lights. After sitting on the plane for almost 2 hours they have us deplane due to the maintenance issue. We were told they were getting another plane. In the mean time, I notice another American- Orlando flight and ask the gate agent if I can switch. He says he cant help me and I'd have to walk to A13 from A37. Really!? I get down there and get a seat only to get an announcement my original flight was RE-boarding. The Then inflight there's no communication and I notice on flightaware were circling over the Gulf of America. I call the flight attendant and of course she has no clue and apparently 5m later the pilot finally tells us about another delay. Why does American always have these service and delay issues? They are my LAST choice in flights now!

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

For my arriving destination, we were delayed multiple times to the point that we arrived 6 hours after we were originally scheduled. On my flight home, they overbooked and involuntarily removed passengers (including me) from the plane. It was not a good experience.

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

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

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.

Everything you need to know for your flight to Caribbean

Information on your arrival and departure airports