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

$105 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $131 and $132, 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 - Montego Bay Sangster Intl.

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

On average you can expect to pay $676 for a flight from St. Louis to Caribbean Islands. The cheapest flight overall is $590 while the most popular route, (Lambert-St Louis - San Juan Luis Munoz Marin Intl) is currently priced at $209.

What are the most popular airlines that fly from St. Louis to Caribbean Islands?

Before booking your flight from St. Louis to Caribbean Islands check out the most popular airlines for this route: American Airlines, Delta or Frontier.

How far in advance should I book a flight from St. Louis to Caribbean Islands?

To save on the cost of your flight from St. Louis to Caribbean Islands, book at least 30 days before your planned departure. Booking around this time can save you about 47% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $295 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $318.

What is the cheapest month to fly from St. Louis to Caribbean Islands?

Flights from St. Louis to Caribbean Islands lean towards being more expensive in July. Prices are generally better when you fly from St. Louis to Caribbean Islands in April, with the cheapest ticket starting at $170.

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.

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.

$105+ Flights from St. Louis to Caribbean Islands - Compare & Save Big

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Cheap flight deals from St. Louis to Caribbean Islands

Round-trip from	$230 (eDestinos)
One-way from	$105 (Delta)
Popular in	July
Cheapest in	April
Average price	$333

From Lambert-St Louis to Caribbean Islands

Search Deals

One-way flight from Lambert-St Louis to Caribbean Islands

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($40 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 April 25, 2025.

Sat 5/2410:10 amSTL - SJU

1 stop7h 57mSpirit Airlines

Sat 6/79:23 pmSJU - STL

1 stop12h 52mSpirit Airlines

Deal found 4/24

$230

Sun 5/257:05 amSTL - SJU

1 stop8h 28mDelta

Thu 5/297:30 amSJU - STL

1 stop10h 05mDelta

Deal found 4/25

$245

Sat 5/1710:10 amSTL - SJU

1 stop7h 57mMultiple Airlines

Fri 5/233:40 amSJU - STL

1 stop21h 04mMultiple Airlines

Deal found 4/24

$284

Sun 5/257:10 amSTL - SJU

1 stop6h 50mAmerican Airlines

Thu 5/296:10 amSJU - STL

2 stops10h 01mAmerican Airlines

Deal found 4/25

$290

Mon 5/55:45 pmSTL - SJU

1 stop8h 06mFrontier

Sat 5/1012:05 pmSJU - STL

1 stop13h 01mFrontier

Deal found 4/25

$298

Tue 5/275:00 amSTL - SJU

1 stop8h 44mUnited Airlines

Tue 6/33:56 pmSJU - STL

1 stop7h 49mUnited Airlines

Deal found 4/25

$335

Tue 5/66:00 amSTL - NAS

1 stop9h 00mDelta

Thu 5/153:20 pmNAS - STL

1 stop9h 18mDelta

Deal found 4/25

$347

Tue 5/66:00 amSTL - NAS

2 stops10h 50mAmerican Airlines

Thu 5/1510:20 amNAS - STL

1 stop12h 59mAmerican Airlines

Deal found 4/25

$351

Sun 5/2510:10 amSTL - PUJ

1 stop27h 07mSpirit Airlines

Fri 6/63:22 pmPUJ - STL

1 stop18h 53mSpirit Airlines

Deal found 4/24

$352

Sat 6/217:20 amSTL - PLS

1 stop6h 49mAmerican Airlines

Sat 6/285:30 pmPLS - STL

1 stop16h 48mAmerican Airlines

Deal found 4/25

$408

Wed 5/75:45 pmSTL - PUJ

2 stops19h 32mMultiple Airlines

Tue 6/312:42 pmPUJ - STL

1 stop11h 55mMultiple Airlines

Deal found 4/24

$415

Sat 5/105:45 pmSTL - STT

1 stop20h 45mMultiple Airlines

Wed 5/142:41 pmSTT - STL

1 stop10h 25mMultiple Airlines

Deal found 4/25

$418

Best flights from St. Louis to Caribbean Islands
Discover carefully curated flight deals from St. Louis to Caribbean Islands that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 25, 2025.

Sat 5/2410:10 amSTL - SJU

1 stop7h 57mSpirit Airlines

Sat 6/79:23 pmSJU - STL

1 stop12h 52mSpirit Airlines

Deal found 4/24

$230

Sun 5/257:05 amSTL - SJU

1 stop8h 28mDelta

Thu 5/297:30 amSJU - STL

1 stop10h 05mDelta

Deal found 4/25

$245

Sat 5/1710:10 amSTL - SJU

1 stop7h 57mMultiple Airlines

Fri 5/233:40 amSJU - STL

1 stop21h 04mMultiple Airlines

Deal found 4/24

$284

Sun 5/257:10 amSTL - SJU

1 stop6h 50mAmerican Airlines

Thu 5/296:10 amSJU - STL

2 stops10h 01mAmerican Airlines

Deal found 4/25

$290

Mon 5/55:45 pmSTL - SJU

1 stop8h 06mFrontier

Sat 5/1012:05 pmSJU - STL

1 stop13h 01mFrontier

Deal found 4/25

$298

Tue 5/275:00 amSTL - SJU

1 stop8h 44mUnited Airlines

Tue 6/33:56 pmSJU - STL

1 stop7h 49mUnited Airlines

Deal found 4/25

$335

Tue 7/155:00 amSTL - SJU

1 stop7h 05mSouthwest

Tue 7/228:00 pmSJU - STL

1 stop13h 35mSouthwest

Deal found 4/25

$448

Tue 5/61:30 pmSTL - NAS

2 stops27h 00mAir Canada

Thu 5/156:30 pmNAS - STL

2 stops26h 28mAir Canada

Deal found 4/25

$594

Tue 5/66:00 amSTL - NAS

1 stop9h 00mDelta

Thu 5/153:20 pmNAS - STL

1 stop9h 18mDelta

Deal found 4/25

$347

Tue 5/66:00 amSTL - NAS

2 stops10h 50mAmerican Airlines

Thu 5/1510:20 amNAS - STL

1 stop12h 59mAmerican Airlines

Deal found 4/25

$351

Sun 5/2510:10 amSTL - PUJ

1 stop27h 07mSpirit Airlines

Fri 6/63:22 pmPUJ - STL

1 stop18h 53mSpirit Airlines

Deal found 4/24

$352

Wed 5/75:45 pmSTL - PUJ

2 stops19h 32mMultiple Airlines

Tue 6/312:42 pmPUJ - STL

1 stop11h 55mMultiple Airlines

Deal found 4/24

$415

Last-minute flights from St. Louis to Caribbean Islands
Discover last-minute flight deals from St. Louis to Caribbean Islands. Data last updated April 25, 2025 and is based on user searches.

Thu 5/16:10 pmSTL - PUJ

2 stops40h 34mMultiple Airlines

Thu 5/812:42 pmPUJ - STL

1 stop12h 24mMultiple Airlines

Deal found 4/23

$431

Thu 5/11:30 pmSTL - PUJ

1 stop22h 55mAir Canada

Mon 5/52:25 pmPUJ - STL

2 stops23h 11mAir Canada

Deal found 4/25

$547

Fri 5/25:55 pmSTL - SJU

1 stop16h 01mMultiple Airlines

Tue 5/69:25 amSJU - STL

1 stop8h 50mMultiple Airlines

Deal found 4/24

$306

Fri 5/25:45 amSTL - MBJ

1 stop7h 25mAmerican Airlines

Thu 5/810:53 amMBJ - STL

1 stop8h 36mAmerican Airlines

Deal found 4/23

$457

Fri 5/210:27 amSTL - PUJ

Nonstop4h 25mFrontier

Mon 5/51:10 pmPUJ - STL

Nonstop4h 58mFrontier

Deal found 4/24

$481

Fri 5/26:30 amSTL - MBJ

2 stops31h 00mUnited Airlines

Thu 5/84:12 pmMBJ - STL

2 stops22h 35mUnited Airlines

Deal found 4/23

$568

Sat 5/39:18 amSTL - SJU

2 stops10h 02mAmerican Airlines

Sat 5/1711:50 amSJU - STL

1 stop6h 39mAmerican Airlines

Deal found 4/24

$392

Sat 5/36:00 amSTL - AUA

1 stop8h 50mUnited Airlines

Sat 5/101:50 pmAUA - STL

1 stop8h 58mUnited Airlines

Deal found 4/24

$471

Sat 5/35:00 amSTL - AUA

2 stops9h 42mAmerican Airlines

Sat 5/105:10 pmAUA - STL

2 stops17h 39mAmerican Airlines

Deal found 4/24

$476

Sat 5/31:25 pmSTL - SJU

Nonstop4h 25mSouthwest

Thu 5/153:25 pmSJU - STL

1 stop7h 30mSouthwest

Deal found 4/25

$526

Sat 5/36:00 amSTL - PUJ

1 stop8h 32mDelta

Thu 5/82:47 pmPUJ - STL

1 stop9h 51mDelta

Deal found 4/24

$567

Mon 5/55:45 pmSTL - SJU

1 stop8h 06mFrontier

Sat 5/1012:05 pmSJU - STL

1 stop13h 01mFrontier

Deal found 4/24

$298

One-way flights from St. Louis to Caribbean Islands
Search for one-way flight options from St. Louis to Caribbean Islands. Find affordable one-way fares based on user searches. Data last updated April 25, 2025.

Sun 5/257:05 amSTL - SJU

1 stop8h 28mDelta

Deal found 4/24

$105

Thu 5/810:05 amSTL - NAS

1 stop4h 59mDelta

Deal found 4/25

$120

Sun 6/227:50 amSTL - SJU

2 stops27h 54mAmerican Airlines

Deal found 4/24

$131

Sat 6/78:05 amSTL - SJU

2 stops12h 19mUnited Airlines

Deal found 4/24

$132

Sun 5/2510:10 amSTL - MBJ

1 stop24h 52mSpirit Airlines

Deal found 4/25

$138

Sun 5/2510:10 amSTL - SJU

1 stop7h 57mSpirit Airlines

Deal found 4/25

$141

Sun 5/2510:10 amSTL - PUJ

1 stop27h 07mSpirit Airlines

Deal found 4/25

$148

Tue 5/135:45 pmSTL - SJU

1 stop8h 06mFrontier

Deal found 4/25

$149

Sun 5/116:00 amSTL - NAS

2 stops10h 50mAmerican Airlines

Deal found 4/25

$165

Wed 5/285:45 pmSTL - PUJ

1 stop14h 02mFrontier

Deal found 4/25

$167

Mon 7/215:40 pmSTL - MBJ

2 stops15h 34mMultiple Airlines

Deal found 4/25

$167

Wed 4/306:15 amSTL - NAS

1 stop6h 35mUnited Airlines

Deal found 4/25

$174

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Caribbean Islands that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/24

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

$230

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 5/25

7:05 am-4:33 pm

1 stop8h 28m

San Juan Luis Munoz Marin Intl

Thu 5/29

7:30 am-4:35 pm

1 stop10h 05m

$245

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/17

10:10 am-7:07 pm

1 stop7h 57m

San Juan Luis Munoz Marin Intl

Fri 5/23

3:40 am-11:44 pm

1 stop21h 04m

$284

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 5/25

7:10 am-3:00 pm

1 stop6h 50m

San Juan Luis Munoz Marin Intl

Thu 5/29

6:10 am-3:11 pm

2 stops10h 01m

$290

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Mon 5/5

5:45 pm-2:51 am

1 stop8h 06m

San Juan Luis Munoz Marin Intl

Sat 5/10

12:05 pm-12:06 am

1 stop13h 01m

$298

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 5/27

5:00 am-2:44 pm

1 stop8h 44m

San Juan Luis Munoz Marin Intl

Tue 6/3

3:56 pm-10:45 pm

1 stop7h 49m

$335

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Tue 5/6

6:00 am-4:00 pm

1 stop9h 00m

Nassau Intl

Thu 5/15

3:20 pm-11:38 pm

1 stop9h 18m

$347

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Tue 5/6

6:00 am-5:50 pm

2 stops10h 50m

Nassau Intl

Thu 5/15

10:20 am-10:19 pm

1 stop12h 59m

$351

St. LouisPunta Cana

STL - PUJ

STLPUJ

Lambert-St Louis

Sun 5/25

10:10 am-2:17 pm

1 stop27h 07m

Punta Cana

Fri 6/6

3:22 pm-9:15 am

1 stop18h 53m

$352

St. LouisProvidenciales

STL - PLS

STLPLS

Lambert-St Louis

Sat 6/21

7:20 am-3:09 pm

1 stop6h 49m

Providenciales

Sat 6/28

5:30 pm-9:18 am

1 stop16h 48m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 60 results

...

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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Caribbean Islands

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 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 EPX?

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

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

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

Read reviews from past customers who have flown Alaska Airlines, Southwest 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.

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,927 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,289 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,920 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Copa Airlines

7.6

Good

1,411 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,685 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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?
$105 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $131 and $132, 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 - Montego Bay Sangster Intl.
What are the cheapest flights from St. Louis to Caribbean Islands?
On average you can expect to pay $676 for a flight from St. Louis to Caribbean Islands. The cheapest flight overall is $590 while the most popular route, (Lambert-St Louis - San Juan Luis Munoz Marin Intl) is currently priced at $209.
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 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

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from St. Louis to Caribbean Islands

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$140	Average$421	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$166	Average$312	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$254	Average$594	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$261	Average$549	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$265	Average$624	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$347	Average$747	FlexibilityNo cancel fee	On-time63%

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$105+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Caribbean Islands with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Caribbean Islands

Keep the following information in mind while searching for St. Louis to Caribbean Islands flight deals. Data was last updated April 25, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Caribbean Islands

Cheapest flights from St. Louis to Caribbean IslandsExplore 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 April 25, 2025.

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 April 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Caribbean Islands that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Caribbean Islands

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

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 April 25, 2025.

Rainfall in Caribbean Islands by month

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

Temperature in Caribbean Islands by month

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

Reviews of airlines servicing Caribbean Islands

Read reviews from past customers who have flown Alaska Airlines, Southwest 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.

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?

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

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

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

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

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

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

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

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 St. Louis to Caribbean Islands

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from St. Louis to Caribbean Islands

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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 April 25, 2025.