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$91+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
Mar 23 — Mar 301
Sun 3/23
Sun 3/30
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 March 18, 2025.

Round-trip from

$198
(CheapOair)

One-way from

$91
(Mytrip)

Popular in

July

Cheapest in

August

Average price

$474

Good round-trip deal

$488 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. 7% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 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 March 18, 2025.

This CheapOair deal was found by Cheapflights users on 3/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:57 pmSTL - SJU
1 stop7h 53mFrontier
Tue 4/82:12 pmSJU - STL
1 stop10h 34mFrontier
Deal found 3/17$198
This American Airlines deal was found by Cheapflights users on 3/17. 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 5/39:52 amSTL - SJU
2 stops9h 36mAmerican Airlines
Wed 5/71:35 pmSJU - STL
1 stop8h 23mAmerican Airlines
Deal found 3/17$209
This Mytrip deal was found by Cheapflights users on 3/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:47 pmSTL - SJU
2 stops28h 07mSpirit Airlines
Sat 4/55:39 pmSJU - STL
1 stop25h 13mSpirit Airlines
Deal found 3/18$212
This Mytrip deal was found by Cheapflights users on 3/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:47 pmSTL - STT
1 stop14h 19mSpirit Airlines
Wed 4/91:26 pmSTT - STL
2 stops28h 49mSpirit Airlines
Deal found 3/16$223
This Priceline deal was found by Cheapflights users on 3/16. 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.
Tue 5/135:47 pmSTL - SJU
1 stop8h 04mMultiple Airlines
Sat 5/179:27 pmSJU - STL
1 stop12h 48mMultiple Airlines
Deal found 3/16$238
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Wed 4/233:40 pmSTL - SJU
1 stop7h 14mUnited Airlines
Mon 4/281:05 amSJU - STL
2 stops15h 42mUnited Airlines
Deal found 3/16$261
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/33:40 pmSTL - SJU
1 stop6h 07mDelta
Sat 6/74:15 pmSJU - STL
1 stop8h 11mDelta
Deal found 3/17$289
This Mytrip deal was found by Cheapflights users on 3/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2512:15 pmSTL - STT
3 stops20h 45mMultiple Airlines
Mon 4/281:09 pmSTT - STL
2 stops29h 06mMultiple Airlines
Deal found 3/16$314
This CheapOair deal was found by Cheapflights users on 3/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:47 pmSTL - PUJ
1 stop18h 55mSpirit Airlines
Wed 4/93:18 pmPUJ - STL
1 stop26h 57mSpirit Airlines
Deal found 3/16$319
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/75:47 pmSTL - PUJ
1 stop17h 00mMultiple Airlines
Wed 5/1412:42 pmPUJ - STL
1 stop12h 24mMultiple Airlines
Deal found 3/17$339
This American Airlines deal was found by Cheapflights users on 3/17. 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.
Tue 4/295:35 amSTL - NAS
1 stop11h 11mAmerican Airlines
Mon 5/57:45 amNAS - STL
1 stop15h 34mAmerican Airlines
Deal found 3/17$347
This Mytrip deal was found by Cheapflights users on 3/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1510:10 amSTL - MBJ
1 stop24h 52mSpirit Airlines
Sat 5/1712:07 pmMBJ - STL
1 stop21h 08mSpirit Airlines
Deal found 3/17$381

Find flights from St. Louis to Caribbean within your budget

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 March 18, 2025.

Fly from

St. Louis

Fly to

Caribbean

Route

Depart

Return

Price

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Wed 4/2

4:57 pm-1:50 am

1 stop7h 53m

San Juan Luis Munoz Marin Intl

Tue 4/8

2:12 pm-11:46 pm

1 stop10h 34m

$198

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/3

9:52 am-8:28 pm

2 stops9h 36m

San Juan Luis Munoz Marin Intl

Wed 5/7

1:35 pm-8:58 pm

1 stop8h 23m

$209

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 4/1

6:47 pm-11:54 pm

2 stops28h 07m

San Juan Luis Munoz Marin Intl

Sat 4/5

5:39 pm-5:52 pm

1 stop25h 13m

$212

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Tue 4/1

6:47 pm-10:06 am

1 stop14h 19m

Saint Thomas Island Cyril E King

Wed 4/9

1:26 pm-5:15 pm

2 stops28h 49m

$223

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 5/13

5:47 pm-2:51 am

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Sat 5/17

9:27 pm-9:15 am

1 stop12h 48m

$238

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Wed 4/23

3:40 pm-11:54 pm

1 stop7h 14m

San Juan Luis Munoz Marin Intl

Mon 4/28

1:05 am-3:47 pm

2 stops15h 42m

$261

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 6/3

3:40 pm-10:47 pm

1 stop6h 07m

San Juan Luis Munoz Marin Intl

Sat 6/7

4:15 pm-11:26 pm

1 stop8h 11m

$289

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Fri 4/25

12:15 pm-10:00 am

3 stops20h 45m

Saint Thomas Island Cyril E King

Mon 4/28

1:09 pm-5:15 pm

2 stops29h 06m

$314

St. LouisPunta Cana

STL - PUJ

STLPUJ

Lambert-St Louis

Tue 4/1

6:47 pm-2:42 pm

1 stop18h 55m

Punta Cana

Wed 4/9

3:18 pm-5:15 pm

1 stop26h 57m

$319

St. LouisPunta Cana

STL - PUJ

STLPUJ

Lambert-St Louis

Wed 5/7

5:47 pm-11:47 am

1 stop17h 00m

Punta Cana

Wed 5/14

12:42 pm-12:06 am

1 stop12h 24m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 60 results
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2
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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.

Travel insights for flights from St. Louis to Caribbean

Get recent, data-driven insights about flights from St. Louis to Caribbean including ideal travel times, pricing trends, and more.

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 March is currently the most expensive (average of $346). 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 March 18, 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 March 18, 2025.
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

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
4,280 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

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.

Alaska Airlines
8.0
Very good
9,750 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

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
7,908 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

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
8,611 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

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
4,280 reviews

Crew

8.7

Boarding

8.2

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

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 $91 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $99 and American Airlines from $105 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 - Saint Thomas Island Cyril E King, 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 March is currently the most expensive (average of $346). 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 March 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$421FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$147Average$307FlexibilityNo cancel feeOn-time65%
DeltaCheapest$254Average$593FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$264Average$573FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$626FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$392Average$762FlexibilityNo cancel feeOn-time63%
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