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Caribbean Islands

$65+ Cheap flights from St. Louis (STL) 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
Jan 14 — Jan 211
Tue 1/14
Tue 1/21
1 adult, Economy
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Cheap flight deals from St. Louis to Caribbean Islands

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Caribbean Islands (zzEPX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 9, 2025.

Round-trip from

$182
(CheapOair)

One-way from

$65
(Mytrip)
From Lambert-St Louis to Caribbean Islands
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One-way flight from Lambert-St Louis to Caribbean Islands
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Find flight deals from St. Louis to Caribbean Islands

Cheapest flights from St. Louis to Caribbean Islands
Explore the most affordable flight options available from St. Louis to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 9, 2025.

This CheapOair deal was found by Cheapflights users on 1/8. 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.
Sun 2/94:28 pmSTL - SJU
1 stop14h 53mMultiple Airlines
Fri 2/143:54 amSJU - STL
1 stop21h 49mMultiple Airlines
Deal found 1/8$182
This CheapOair deal was found by Cheapflights users on 1/8. 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.
Mon 2/105:05 pmSTL - SJU
1 stop16h 25mFrontier
Fri 2/213:54 amSJU - STL
1 stop21h 49mFrontier
Deal found 1/8$187
This CheapOair deal was found by Cheapflights users on 1/8. 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.
Sun 2/94:28 pmSTL - SJU
1 stop14h 53mSpirit Airlines
Sat 2/159:34 pmSJU - STL
1 stop19h 08mSpirit Airlines
Deal found 1/8$204
This CheapOair deal was found by Cheapflights users on 1/8. 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.
Thu 1/234:28 pmSTL - STT
1 stop16h 18mSpirit Airlines
Mon 1/2711:51 amSTT - STL
1 stop28h 52mSpirit Airlines
Deal found 1/8$233
This United Airlines deal was found by Cheapflights users on 1/7. 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.
Sun 2/912:55 pmSTL - SJU
1 stop7h 27mUnited Airlines
Wed 2/122:05 amSJU - STL
2 stops14h 31mUnited Airlines
Deal found 1/7$255
This American Airlines deal was found by Cheapflights users on 1/8. 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 2/59:36 amSTL - SJU
1 stop10h 31mAmerican Airlines
Wed 2/126:00 amSJU - STL
1 stop8h 57mAmerican Airlines
Deal found 1/8$279
This Delta deal was found by Cheapflights users on 1/8. 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 4/110:45 amSTL - SJU
1 stop8h 25mDelta
Sat 4/196:15 amSJU - STL
1 stop9h 20mDelta
Deal found 1/8$317
This Mytrip deal was found by Cheapflights users on 1/9. 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 1/234:28 pmSTL - STT
1 stop16h 18mMultiple Airlines
Thu 1/3011:51 amSTT - STL
3 stops34h 19mMultiple Airlines
Deal found 1/9$320
This CheapOair deal was found by Cheapflights users on 1/9. 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.
Sun 2/234:00 pmSTL - MBJ
1 stop20h 43mSpirit Airlines
Wed 2/262:48 pmMBJ - STL
1 stop24h 54mSpirit Airlines
Deal found 1/9$322
This Delta deal was found by Cheapflights users on 1/9. 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 1/296:00 amSTL - GCM
1 stop5h 38mDelta
Tue 2/112:04 pmGCM - STL
1 stop10h 32mDelta
Deal found 1/9$352
This American Airlines deal was found by Cheapflights users on 1/9. 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.
Mon 5/54:34 pmSTL - GCM
1 stop18h 22mAmerican Airlines
Thu 5/82:55 pmGCM - STL
1 stop8h 16mAmerican Airlines
Deal found 1/9$353
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 2/204:00 pmSTL - PUJ
1 stop21h 43mSpirit Airlines
Mon 2/244:48 pmPUJ - STL
1 stop23h 54mSpirit Airlines
Deal found 1/8$355

Find flights from St. Louis to Caribbean Islands within your budget

Customize your flight search to find flights from St. Louis 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 January 9, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 2/9

4:28 pm-9:21 am

1 stop14h 53m

San Juan Luis Munoz Marin Intl

Fri 2/14

3:54 am-11:43 pm

1 stop21h 49m

$182

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Mon 2/10

5:05 pm-11:30 am

1 stop16h 25m

San Juan Luis Munoz Marin Intl

Fri 2/21

3:54 am-11:43 pm

1 stop21h 49m

$187

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 2/9

4:28 pm-9:21 am

1 stop14h 53m

San Juan Luis Munoz Marin Intl

Sat 2/15

9:34 pm-2:42 pm

1 stop19h 08m

$204

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Thu 1/23

4:28 pm-10:46 am

1 stop16h 18m

Saint Thomas Island Cyril E King

Mon 1/27

11:51 am-2:43 pm

1 stop28h 52m

$233

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Mon 2/3

9:44 am-10:22 pm

2 stops10h 38m

San Juan Luis Munoz Marin Intl

Thu 2/6

2:05 am-10:47 am

1 stop10h 42m

$255

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Wed 2/5

9:36 am-10:07 pm

1 stop10h 31m

San Juan Luis Munoz Marin Intl

Wed 2/12

6:00 am-12:57 pm

1 stop8h 57m

$279

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 4/1

10:45 am-8:10 pm

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Sat 4/19

6:15 am-2:35 pm

1 stop9h 20m

$317

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Thu 1/23

4:28 pm-10:46 am

1 stop16h 18m

Saint Thomas Island Cyril E King

Thu 1/30

11:51 am-8:10 pm

3 stops34h 19m

$320

St. LouisGeorge Town

STL - GCM

STLGCM

Lambert-St Louis

Mon 5/5

4:46 pm-1:00 pm

1 stop20h 14m

George Town Owen Roberts Intl

Thu 5/8

2:55 pm-11:11 pm

1 stop8h 16m

$350

St. LouisGeorge Town

STL - GCM

STLGCM

Lambert-St Louis

Mon 2/10

6:00 am-12:38 pm

1 stop5h 38m

George Town Owen Roberts Intl

Thu 2/13

2:04 pm-11:37 pm

1 stop10h 33m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to Caribbean Islands

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands 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 Islands

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

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Caribbean Islands (average of $254). Flying from St. Louis to Caribbean Islands in March is currently the most expensive (average of $380). 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 EPX?

Find hourly flight availability from St. Louis 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 January 9, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Caribbean Islands as you normally would.

Rainfall in Caribbean Islands by month

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

In terms of precipitation, rainfall in Caribbean Islands 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 Islands when rainfall is around 2.2 in.

Temperature in Caribbean Islands by month

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

If weather is an important factor for your trip to Caribbean Islands, 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 Islands

Get insights into the airlines that provide service to Caribbean Islands. 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 Islands. Reviews last updated January 9, 2025.
Read reviews from past customers who have flown Spirit Airlines, United Airlines and Delta from St. Louis to Caribbean Islands. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,650 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,650 reviews
Southwest
8.1
Very good
4,650 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,634 reviews
Southwest
8.1
Very good
4,650 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,501 reviews
Southwest
8.1
Very good
4,650 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Copa Airlines
7.7
Good
1,648 reviews
Southwest
8.1
Very good
4,650 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,941 reviews
Southwest
8.1
Very good
4,650 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from St. Louis 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 airport do you fly from for flights from St. Louis to Caribbean Islands?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to Caribbean Islands from St. Louis.

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

    $65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and American Airlines, with prices starting from $71 and $124, respectively.

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

    The most popular route from St. Louis to Caribbean Islands is Lambert-St Louis - San Juan Luis Munoz Marin Intl. You may also consider Lambert-St Louis - Punta Cana or Lambert-St Louis - Saint Thomas Island Cyril E King.

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

    On average you can expect to pay $645 for a flight from St. Louis to Caribbean Islands. The cheapest flight overall is $530 while the most popular route, (Lambert-St Louis - San Juan Luis Munoz Marin Intl) is currently priced at $137.

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

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

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

    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 Islands.

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

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Caribbean Islands (average of $254). Flying from St. Louis to Caribbean Islands in March is currently the most expensive (average of $380). 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.

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Alternative routes for St. Louis to Caribbean Islands

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 Islands

Discover the top 6 airlines that operate flights from St. Louis 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 January 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$168Average$442FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$174Average$348FlexibilityNo cancel feeOn-time65%
DeltaCheapest$254Average$605FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$264Average$596FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$273Average$618FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$374Average$724FlexibilityNo cancel feeOn-time63%
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