HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Caribbean Islands

$103+ Cheap flights from Missouri to Caribbean Islands

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missouri to Caribbean Islands with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Missouri to Caribbean Islands

Keep the following information in mind while searching for Missouri to Caribbean Islands flight deals. Data was last updated August 18, 2025.

Round-trip from

$205
(Delta)

One-way from

$103
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$495
From Missouri to Caribbean Islands
Search Deals
One-way flight from Missouri to Caribbean Islands
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Missouri to Caribbean Islands

Cheapest flights from Missouri to Caribbean Islands
Explore the most affordable flight options available from Missouri to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/215:28 amSTL - SJU
1 stop17h 09mAmerican Airlines
Sat 9/271:40 pmSJU - STL
1 stop11h 19mAmerican Airlines
Deal found 8/17$205
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:00 amMCI - SJU
1 stop8h 33mDelta
Wed 11/57:15 amSJU - MCI
1 stop7h 14mDelta
Deal found 8/18$215
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/41:26 pmSTL - SJU
1 stop7h 34mDelta
Tue 10/77:15 amSJU - STL
1 stop9h 40mDelta
Deal found 8/16$244
This FlightHub deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/125:15 amMCI - STT
1 stop6h 44mSpirit Airlines
Sat 10/182:01 pmSTT - MCI
1 stop10h 45mSpirit Airlines
Deal found 8/16$247
This FlightHub deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:00 pmSTL - STT
1 stop13h 56mSpirit Airlines
Sat 10/2511:01 amSTT - STL
1 stop7h 44mSpirit Airlines
Deal found 8/16$261
This FlightHub deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2410:37 amSTL - SJU
1 stop10h 11mMultiple Airlines
Sat 8/303:59 amSJU - STL
1 stop10h 08mMultiple Airlines
Deal found 8/17$261
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:10 amSTL - SJU
1 stop8h 16mUnited Airlines
Fri 12/122:05 amSJU - STL
2 stops12h 10mUnited Airlines
Deal found 8/16$262
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:58 amMCI - SJU
1 stop9h 02mUnited Airlines
Thu 11/138:10 amSJU - MCI
1 stop8h 11mUnited Airlines
Deal found 8/16$264
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:02 amMCI - SJU
1 stop16h 57mAmerican Airlines
Tue 10/217:45 amSJU - MCI
2 stops14h 07mAmerican Airlines
Deal found 8/17$265
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:15 pmMCI - SJU
2 stops16h 56mAmerican Airlines
Fri 9/263:05 pmSJU - MCI
1 stop18h 58mAmerican Airlines
Deal found 8/17$267
This Priceline deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/273:37 pmSTL - SJU
1 stop9h 17mFrontier
Fri 12/53:55 amSJU - STL
1 stop20h 51mFrontier
Deal found 8/16$269
This Frontier deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:11 pmSTL - SJU
1 stop7h 39mFrontier
Tue 12/911:05 amSJU - STL
1 stop13h 41mFrontier
Deal found 8/15$273

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Caribbean Islands that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Missouri to Caribbean Islands that are best for you.

Fly from

Missouri

Fly to

Caribbean Islands

Route

Depart

Return

Price

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Mon 11/10

9:00 am-5:15 pm

1 stop6h 15m

San Juan Luis Munoz Marin Intl

Fri 11/14

7:30 am-12:56 pm

1 stop7h 26m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 9/16

11:05 am-8:38 pm

1 stop8h 33m

San Juan Luis Munoz Marin Intl

Tue 9/23

1:05 am-2:19 pm

2 stops14h 14m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 9/16

5:25 am-2:10 pm

1 stop7h 45m

San Juan Luis Munoz Marin Intl

Tue 9/23

5:00 am-1:30 pm

1 stop9h 30m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 9/21

5:28 am-12:50 pm

1 stop6h 22m

San Juan Luis Munoz Marin Intl

Sat 9/27

1:40 pm-11:59 pm

1 stop11h 19m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 12/9

11:51 am-11:17 pm

1 stop9h 26m

San Juan Luis Munoz Marin Intl

Thu 12/11

6:20 pm-11:39 pm

1 stop7h 19m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 12/9

11:51 am-11:17 pm

1 stop9h 26m

San Juan Luis Munoz Marin Intl

Sat 12/13

7:30 am-12:57 pm

1 stop7h 27m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 10/18

10:30 am-9:59 pm

1 stop10h 29m

San Juan Luis Munoz Marin Intl

Wed 10/22

7:15 am-3:55 pm

1 stop9h 40m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 2/8

10:00 am-8:30 pm

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Thu 2/19

6:15 am-10:50 am

1 stop6h 35m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Thu 11/27

6:00 am-2:15 pm

1 stop6h 15m

San Juan Luis Munoz Marin Intl

Sat 12/6

4:30 pm-11:02 pm

1 stop8h 32m

$205

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 1/24

12:30 pm-11:49 pm

1 stop9h 19m

San Juan Luis Munoz Marin Intl

Wed 1/28

6:20 pm-11:40 pm

1 stop7h 20m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Missouri to Caribbean Islands

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Caribbean Islands

What is the cheapest month to book a flight from Missouri to Caribbean Islands?

Currently, September is the cheapest month in which you can book a flight from Missouri to Caribbean Islands (average of $254). Flying from Missouri to Caribbean Islands in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to EPX?

Find hourly flight availability from Missouri to Caribbean Islands. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

When flying from Missouri to Caribbean Islands, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Caribbean Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Missouri to Caribbean Islands one-way?

    One-way options have recently been found by users for as low as $103 on United Airlines. Other airlines that offer cheap prices include Spirit Airlines from $104 and Southwest from $108 one-way.

  • Can I find deals for flights from Missouri to Caribbean Islands that include hotel bookings?

    Yes. In addition to deals on Missouri to Caribbean Islands flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Caribbean Islands?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Caribbean Islands.

  • Can I find deals for business class flights from Missouri to Caribbean Islands?

    Yes. Cheapflights offers flight deals from Missouri to Caribbean Islands by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Caribbean Islands?

    Currently, September is the cheapest month in which you can book a flight from Missouri to Caribbean Islands (average of $254). Flying from Missouri to Caribbean Islands in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to Caribbean Islands

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Dallas/Fort Worth to Seattle flights
Dallas/Fort Worth to Las Vegas flights
Dallas/Fort Worth to LaGuardia flights
John F Kennedy Intl to Cancún flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to O'Hare Intl flights
John F Kennedy Intl to Miami flights
Los Angeles to Newark flights
Dallas/Fort Worth to John F Kennedy Intl flights
John F Kennedy Intl to Las Vegas flights
San Francisco to John F Kennedy Intl flights
Newark to Cancún flights
John F Kennedy Intl to O'Hare Intl flights
San Francisco to Newark flights
Newark to Fort Lauderdale flights
Newark to Los Angeles flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Orlando flights
Los Angeles to Seattle flights
Newark to Miami flights
O'Hare Intl to Las Vegas flights
Newark to O'Hare Intl flights
O'Hare Intl to John F Kennedy Intl flights
LaGuardia to Dallas/Fort Worth flights
LaGuardia to Fort Lauderdale flights
O'Hare Intl to Cancún flights
Seattle to Los Angeles flights
Atlanta to John F Kennedy Intl flights
Ontario to Seattle flights
Newark to Las Vegas flights
Seattle to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
LaGuardia to O'Hare Intl flights
Dallas/Fort Worth to Denver flights
John F Kennedy Intl to San Francisco flights
Los Angeles to Honolulu flights
O'Hare Intl to LaGuardia flights
LaGuardia to Miami flights
Atlanta to LaGuardia flights
Los Angeles to O'Hare Intl flights
Los Angeles to LaGuardia flights
San Francisco to Las Vegas flights
John F Kennedy Intl to Mexico City flights
Los Angeles to Dallas/Fort Worth flights
Dallas/Fort Worth to Newark flights
Newark to Orlando flights
O'Hare Intl to Newark flights
Miami to LaGuardia flights
O'Hare Intl to Dallas/Fort Worth flights

Top 6 airlines flying from Missouri to Caribbean Islands

Discover the top 6 airlines that operate flights from Missouri to Caribbean Islands. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$390FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$170Average$346FlexibilityNo cancel feeOn-time65%
DeltaCheapest$209Average$594FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$219Average$617FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$219Average$744FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$257Average$652FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.