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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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Round-trip from

$209
(Delta)

One-way from

$105
(United Airlines)

Popular in

July

Cheapest in

April

Average price

$333

Good round-trip deal

$444 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. 8% potential increase in price ($40 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 April 2025
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Price to beat on a round-trip 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 April 30, 2025.

This Delta deal was found by Cheapflights users on 4/29. 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 7/121:23 pmSTL - SJU
1 stop8h 00mDelta
Fri 7/252:40 pmSJU - STL
1 stop10h 13mDelta
Deal found 4/29$209
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Sat 5/246:20 pmSTL - SJU
1 stop15h 44mAmerican Airlines
Tue 5/275:25 amSJU - STL
1 stop16h 33mAmerican Airlines
Deal found 4/27$234
This CheapOair deal was found by Cheapflights users on 4/29. 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.
Fri 5/95:55 pmSTL - SJU
1 stop7h 56mFrontier
Tue 5/137:30 pmSJU - STL
1 stop29h 36mFrontier
Deal found 4/29$299
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2910:10 amSTL - SJU
1 stop7h 57mMultiple Airlines
Sun 6/14:55 pmSJU - STL
1 stop7h 54mMultiple Airlines
Deal found 4/28$301
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 6/125:55 pmSTL - SJU
1 stop10h 35mUnited Airlines
Mon 6/162:05 amSJU - STL
1 stop9h 34mUnited Airlines
Deal found 4/28$306
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/110:10 amSTL - SJU
1 stop7h 57mSpirit Airlines
Sat 6/79:23 pmSJU - STL
1 stop12h 52mSpirit Airlines
Deal found 4/28$310
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 5/77:05 amSTL - NAS
1 stop7h 59mDelta
Mon 5/123:20 pmNAS - STL
1 stop9h 18mDelta
Deal found 4/28$347
This American Airlines deal was found by Cheapflights users on 4/29. 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 5/65:00 amSTL - NAS
2 stops9h 17mAmerican Airlines
Thu 5/157:45 amNAS - STL
1 stop15h 34mAmerican Airlines
Deal found 4/29$351
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Thu 6/510:10 amSTL - MBJ
1 stop24h 52mSpirit Airlines
Thu 6/1212:07 pmMBJ - STL
1 stop22h 26mSpirit Airlines
Deal found 4/29$380
This Mytrip deal was found by Cheapflights users on 4/28. 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 6/510:10 amSTL - PUJ
1 stop27h 07mSpirit Airlines
Wed 6/1112:42 pmPUJ - STL
2 stops29h 22mSpirit Airlines
Deal found 4/28$394
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Thu 6/510:10 amSTL - PUJ
1 stop27h 07mMultiple Airlines
Wed 6/1112:42 pmPUJ - STL
1 stop11h 55mMultiple Airlines
Deal found 4/28$395
This Delta deal was found by Cheapflights users on 4/29. 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 7/56:00 amSTL - PLS
1 stop7h 40mDelta
Tue 7/152:00 pmPLS - STL
1 stop10h 53mDelta
Deal found 4/29$408

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 April 30, 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

Sat 7/12

10:10 am-10:23 pm

1 stop11h 13m

San Juan Luis Munoz Marin Intl

Tue 7/15

6:15 am-4:18 pm

1 stop11h 03m

$209

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/24

6:20 pm-11:04 am

1 stop15h 44m

San Juan Luis Munoz Marin Intl

Tue 5/27

5:25 am-8:58 pm

1 stop16h 33m

$234

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Fri 5/9

5:55 pm-2:51 am

1 stop7h 56m

San Juan Luis Munoz Marin Intl

Tue 5/13

7:30 pm-12:06 am

1 stop29h 36m

$299

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Thu 5/29

10:10 am-7:07 pm

1 stop7h 57m

San Juan Luis Munoz Marin Intl

Sun 6/1

4:55 pm-11:49 pm

1 stop7h 54m

$301

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Thu 6/12

5:55 pm-5:30 am

1 stop10h 35m

San Juan Luis Munoz Marin Intl

Mon 6/16

2:05 am-10:39 am

1 stop9h 34m

$306

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 6/1

10:10 am-7:07 pm

1 stop7h 57m

San Juan Luis Munoz Marin Intl

Sat 6/7

9:23 pm-9:15 am

1 stop12h 52m

$310

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Sun 5/11

7:05 am-1:55 pm

1 stop5h 50m

Nassau Intl

Wed 5/14

3:20 pm-11:38 pm

1 stop9h 18m

$347

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Sat 5/10

9:29 am-7:55 pm

2 stops9h 26m

Nassau Intl

Tue 5/13

12:05 pm-8:58 pm

1 stop9h 53m

$351

St. LouisMontego Bay

STL - MBJ

STLMBJ

Lambert-St Louis

Thu 6/5

10:10 am-11:02 am

1 stop24h 52m

Montego Bay Sangster Intl

Thu 6/12

12:07 pm-10:33 am

1 stop22h 26m

$380

St. LouisPunta Cana

STL - PUJ

STLPUJ

Lambert-St Louis

Thu 6/5

10:10 am-2:17 pm

1 stop27h 07m

Punta Cana

Wed 6/11

12:42 pm-5:04 pm

2 stops29h 22m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 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 April 30, 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 April 30, 2025.
Delta
8.0
Very good
7,936 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Alaska Airlines
8.0
Very good
9,968 reviews
Delta
8.0
Very good
7,936 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Southwest
8.0
Very good
4,295 reviews
Delta
8.0
Very good
7,936 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.5
Good
1,411 reviews
Delta
8.0
Very good
7,936 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,767 reviews
Delta
8.0
Very good
7,936 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $110 and Spirit Airlines from $135 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.

  • What are the cheapest flights from St. Louis to Caribbean?

    Looking for the cheapest flight from St. Louis to Caribbean? While on average our users pay $666, our data indicates the cheapest price to be $590. The most popular route (Lambert-St Louis - San Juan Luis Munoz Marin Intl), is priced around $209.

  • 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$420FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$155Average$282FlexibilityNo cancel feeOn-time65%
DeltaCheapest$254Average$595FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$261Average$552FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$262Average$626FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$347Average$745FlexibilityNo cancel feeOn-time63%

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