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$105+ Cheap flights from St. Louis (STL) to Caribbean

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
abr. 2 — abr. 91
mié. 4/2
mié. 4/9
1 adult, Economy
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Cheap flight deals from St. Louis to Caribbean

Keep the following information in mind while searching for St. Louis to Caribbean flight deals. Data was last updated marzo 28, 2025.

Round-trip from

$209
(Southwest)

One-way from

$105
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$479

Good round-trip deal

$444 or less

Good one-way deal

$329 or less
From Lambert-St Louis to Caribbean
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One-way flight from Lambert-St Louis to Caribbean
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Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Caribbean.
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Price to beat on a one-way flight from Lambert-St Louis to Caribbean.
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Find flight deals from St. Louis to Caribbean

Cheapest flights from St. Louis to Caribbean
Explore the most affordable flight options available from St. Louis to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.

This Southwest deal was found by Cheapflights users on 3/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/274:35 pmSTL - SJU
1 stop6h 05mSouthwest
jue. 5/15:35 amSJU - STL
1 stop8h 55mSouthwest
Deal found 3/27$209
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/246:10 pmSTL - STT
1 stop14h 50mSpirit Airlines
jue. 5/111:05 amSTT - STL
1 stop7h 10mSpirit Airlines
Deal found 3/27$220
This Delta deal was found by Cheapflights users on 3/27. 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.
sáb. 4/2612:47 pmSTL - SJU
1 stop6h 36mDelta
sáb. 5/36:15 amSJU - STL
1 stop6h 26mDelta
Deal found 3/27$261
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/246:10 pmSTL - SJU
2 stops28h 36mSpirit Airlines
jue. 5/19:25 amSJU - STL
1 stop8h 50mSpirit Airlines
Deal found 3/27$285
This American Airlines deal was found by Cheapflights users on 3/27. 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.
sáb. 5/36:15 amSTL - SJU
1 stop16h 54mAmerican Airlines
mié. 5/76:10 amSJU - STL
1 stop17h 09mAmerican Airlines
Deal found 3/27$286
This United Airlines deal was found by Cheapflights users on 3/27. 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.
sáb. 4/261:12 pmSTL - SJU
1 stop9h 42mUnited Airlines
vie. 5/21:05 amSJU - STL
2 stops10h 58mUnited Airlines
Deal found 3/27$287
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/44:57 pmSTL - SJU
1 stop19h 19mFrontier
dom. 4/69:35 pmSJU - STL
1 stop27h 11mFrontier
Deal found 3/27$298
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/810:10 amSTL - SJU
1 stop7h 57mMultiple Airlines
lun. 5/129:30 pmSJU - STL
1 stop27h 36mMultiple Airlines
Deal found 3/27$310
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/246:10 pmSTL - STT
1 stop14h 50mMultiple Airlines
jue. 5/111:05 amSTT - STL
3 stops25h 26mMultiple Airlines
Deal found 3/27$324
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/94:57 pmSTL - PUJ
1 stop17h 47mMultiple Airlines
mié. 4/303:18 pmPUJ - STL
1 stop26h 57mMultiple Airlines
Deal found 3/26$344
This Delta deal was found by Cheapflights users on 3/27. 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.
lun. 4/287:10 amSTL - NAS
1 stop7h 50mDelta
jue. 5/13:09 pmNAS - STL
1 stop6h 30mDelta
Deal found 3/27$347
This American Airlines deal was found by Cheapflights users on 3/27. 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.
lun. 4/2810:17 amSTL - NAS
2 stops8h 24mAmerican Airlines
jue. 5/12:43 pmNAS - STL
2 stops9h 50mAmerican Airlines
Deal found 3/27$351

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Caribbean 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 marzo 28, 2025.
Use the filters below to find and compare flights from St. Louis to Caribbean that are best for you.

Fly from

St. Louis

Fly to

Caribbean

Route

Depart

Return

Price

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

dom. 4/27

4:35 pm-11:40 pm

1 stop6h 05m

San Juan Luis Munoz Marin Intl

jue. 5/1

5:35 am-1:30 pm

1 stop8h 55m

$209

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

jue. 4/24

6:10 pm-10:00 am

1 stop14h 50m

Saint Thomas Island Cyril E King

jue. 5/1

11:05 am-5:15 pm

1 stop7h 10m

$220

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

sáb. 4/26

12:47 pm-8:23 pm

1 stop6h 36m

San Juan Luis Munoz Marin Intl

sáb. 5/3

6:15 am-11:41 am

1 stop6h 26m

$261

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

jue. 4/24

6:10 pm-11:46 pm

2 stops28h 36m

San Juan Luis Munoz Marin Intl

jue. 5/1

9:25 am-5:15 pm

1 stop8h 50m

$285

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

sáb. 5/3

6:15 am-12:09 am

1 stop16h 54m

San Juan Luis Munoz Marin Intl

mié. 5/7

6:10 am-10:19 pm

1 stop17h 09m

$286

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

sáb. 4/26

1:12 pm-11:54 pm

1 stop9h 42m

San Juan Luis Munoz Marin Intl

vie. 5/2

1:05 am-11:03 am

2 stops10h 58m

$287

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

vie. 5/2

5:55 pm-2:51 am

1 stop7h 56m

San Juan Luis Munoz Marin Intl

vie. 5/9

3:56 am-12:06 am

1 stop21h 10m

$298

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

jue. 5/8

10:10 am-7:07 pm

1 stop7h 57m

San Juan Luis Munoz Marin Intl

lun. 5/12

9:30 pm-12:06 am

1 stop27h 36m

$310

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

jue. 4/24

6:10 pm-10:00 am

1 stop14h 50m

Saint Thomas Island Cyril E King

jue. 5/1

11:05 am-11:31 am

3 stops25h 26m

$324

St. LouisPunta Cana

STL - PUJ

STLPUJ

Lambert-St Louis

mié. 4/9

4:57 pm-11:44 am

1 stop17h 47m

Punta Cana

mié. 4/30

3:18 pm-5:15 pm

1 stop26h 57m

$344

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 47 results
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Best time to book a flight from St. Louis to Caribbean

Have a flexible travel schedule? Discover the best time to fly to Caribbean from St. Louis 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 St. Louis to Caribbean

What is the cheapest month to book a flight from St. Louis to Caribbean?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Caribbean (average of $254). Flying from St. Louis to Caribbean in December is currently the most expensive (average of $336). 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 STL to CB?

Find hourly flight availability from St. Louis to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 28, 2025.

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

Rainfall in Caribbean by month

Plan your trip to Caribbean by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Caribbean ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Caribbean when rainfall is around 2.2 in.

Temperature in Caribbean by month

Plan your trip to Caribbean by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Caribbean, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Caribbean

Get insights into the airlines that provide service to Caribbean. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Caribbean. Reviews last updated marzo 28, 2025.
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
WestJet
7.2
Good
2,785 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to Caribbean?

    If you book a flight to Caribbean from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • What are the cheapest airlines to fly from St. Louis to Caribbean one-way?

    One-way options have recently been found by users for as low as $105 on United Airlines. Other airlines that offer cheap prices include American Airlines from $107 and Spirit Airlines from $141 one-way.

  • What are the most popular routes from St. Louis to Caribbean?

    While some choose either Lambert-St Louis - Punta Cana or Lambert-St Louis - Montego Bay Sangster Intl, Lambert-St Louis - San Juan Luis Munoz Marin Intl is the most popular route from St. Louis to Caribbean.

  • Can I find deals for flights from St. Louis to Caribbean that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Caribbean?

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

  • Can I find deals for business class flights from St. Louis to Caribbean?

    Yes. Cheapflights offers flight deals from St. Louis to Caribbean 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 St. Louis to Caribbean?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Caribbean (average of $254). Flying from St. Louis to Caribbean in December is currently the most expensive (average of $336). 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

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Alternative routes for St. Louis to Caribbean

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from St. Louis to Caribbean

Discover the top 6 airlines that operate flights from St. Louis to Caribbean. 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 marzo 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$420FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$147Average$308FlexibilityNo cancel feeOn-time65%
DeltaCheapest$254Average$599FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$264Average$563FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$615FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$392Average$760FlexibilityNo cancel feeOn-time63%
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