How long is the flight from St. Louis to Caribbean Islands?

There are many flights that can get you from St. Louis to Caribbean Islands in 6h 14m. Fly via Delta, Spirit Airlines, or United Airlines to get the fastest option. The distance between St. Louis and Caribbean Islands is about 2024 mi. This flight may include one or multiple stops.

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

$113 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 $125 and $125, respectively.

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.

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).

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 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.

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

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Caribbean Islands

Round-trip from	$225 (Delta)
One-way from	$105 (Cheapflightsfares)
Popular in	December
Cheapest in	September
Average price	$386

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. 10% potential increase in price ($50 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 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 October 1, 2025.

Tue 10/2811:05 amSTL - SJU

1 stop7h 55mUnited Airlines

Tue 11/48:10 amSJU - STL

1 stop9h 37mUnited Airlines

Deal found 9/29

$225

Fri 10/312:12 pmSTL - SJU

1 stop6h 12mFrontier

Thu 11/63:59 amSJU - STL

1 stop7h 41mFrontier

Deal found 10/1

$272

Sat 11/84:33 pmSTL - SJU

1 stop8h 21mFrontier

Sun 11/1610:39 pmSJU - STL

1 stop13h 01mFrontier

Deal found 9/29

$276

Sat 11/154:33 pmSTL - SJU

1 stop8h 21mFrontier

Sat 11/223:59 amSJU - STL

1 stop7h 30mFrontier

Deal found 10/1

$278

Thu 11/274:13 pmSTL - SJU

1 stop8h 41mFrontier

Thu 12/43:55 amSJU - STL

1 stop6h 50mFrontier

Deal found 9/29

$281

Fri 11/74:56 pmSTL - SJU

2 stops37h 49mFrontier

Thu 11/134:31 pmSJU - STL

1 stop25h 30mFrontier

Deal found 10/1

$289

Sat 10/187:15 pmSTL - MBJ

1 stop15h 45mSpirit Airlines

Sat 10/2512:09 pmMBJ - STL

1 stop6h 01mSpirit Airlines

Deal found 10/1

$294

Mon 10/279:50 amSTL - SJU

1 stop13h 55mSouthwest

Mon 11/36:40 amSJU - STL

1 stop8h 05mSouthwest

Deal found 9/29

$294

Thu 10/301:30 pmSTL - SJU

1 stop7h 29mDelta

Thu 11/61:46 pmSJU - STL

1 stop6h 16mDelta

Deal found 10/1

$295

Sat 10/114:33 pmSTL - SJU

1 stop8h 57mFrontier

Sat 10/183:40 amSJU - STL

1 stop10h 06mFrontier

Deal found 9/29

$296

Sun 10/2610:00 amSTL - SJU

1 stop9h 00mUnited Airlines

Sat 11/12:05 amSJU - STL

1 stop10h 44mUnited Airlines

Deal found 9/28

$303

Sat 10/187:15 pmSTL - STT

1 stop13h 41mSpirit Airlines

Sat 10/2511:01 amSTT - STL

1 stop8h 09mSpirit Airlines

Deal found 9/29

$304

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 October 1, 2025.

Wed 12/106:00 amSTL - SJU

1 stop6h 14mDelta

Wed 12/171:57 pmSJU - STL

1 stop6h 40mDelta

Deal found 9/29

$295

Sat 10/187:15 pmSTL - STT

1 stop13h 41mSpirit Airlines

Sat 10/2511:01 amSTT - STL

1 stop8h 09mSpirit Airlines

Deal found 9/29

$304

Tue 11/411:05 amSTL - SJU

1 stop7h 55mUnited Airlines

Thu 11/138:10 amSJU - STL

1 stop8h 14mUnited Airlines

Deal found 10/1

$315

Sun 11/24:05 pmSTL - CUR

1 stop22h 15mAir Canada

Fri 11/75:20 pmCUR - STL

1 stop24h 09mAir Canada

Deal found 9/29

$326

Wed 11/51:50 pmSTL - SJU

2 stops8h 45mSouthwest

Wed 11/128:55 amSJU - STL

1 stop12h 20mSouthwest

Deal found 10/1

$342

Sun 12/147:12 amSTL - NAS

1 stop5h 47mAmerican Airlines

Sat 12/206:50 pmNAS - STL

1 stop17h 00mAmerican Airlines

Deal found 9/29

$357

Sat 10/187:15 pmSTL - STT

1 stop13h 41mMultiple Airlines

Sat 10/252:01 pmSTT - STL

2 stops20h 06mMultiple Airlines

Deal found 9/30

$402

Sun 10/1910:57 amSTL - PUJ

1 stop26h 52mSpirit Airlines

Fri 10/243:57 pmPUJ - STL

1 stop27h 13mSpirit Airlines

Deal found 9/30

$351

Sat 11/86:00 amSTL - SJU

1 stop7h 11mDelta

Wed 11/121:57 pmSJU - STL

1 stop10h 01mDelta

Deal found 10/1

$355

Fri 11/146:15 amSTL - NAS

1 stop6h 18mUnited Airlines

Mon 11/172:35 pmNAS - STL

1 stop8h 47mUnited Airlines

Deal found 9/30

$357

Fri 10/316:00 amSTL - NAS

1 stop6h 49mDelta

Sun 11/21:16 pmNAS - STL

1 stop5h 46mDelta

Deal found 9/30

$357

Wed 11/126:15 amSTL - NAS

1 stop6h 18mUnited Airlines

Fri 11/212:35 pmNAS - STL

1 stop8h 52mUnited Airlines

Deal found 9/29

$357

Sat 10/189:15 amSTL - PUJ

2 stops11h 30mAir Canada

Tue 10/214:25 pmPUJ - STL

1 stop23h 53mAir Canada

Deal found 10/1

$405

Sun 10/1910:57 amSTL - MBJ

1 stop24h 03mMultiple Airlines

Fri 10/243:51 pmMBJ - STL

2 stops26h 11mMultiple Airlines

Deal found 9/30

$414

Sat 10/257:00 amSTL - MBJ

1 stop7h 00mSouthwest

Sat 11/112:55 pmMBJ - STL

1 stop7h 35mSouthwest

Deal found 9/30

$419

Fri 12/58:13 amSTL - MBJ

1 stop6h 36mAmerican Airlines

Tue 12/94:23 pmMBJ - STL

1 stop8h 36mAmerican Airlines

Deal found 9/29

$419

Fri 10/317:05 amSTL - NAS

1 stop5h 44mDelta

Thu 11/61:16 pmNAS - STL

1 stop5h 46mDelta

Deal found 9/30

$357

Sat 11/111:20 amSTL - SJU

1 stop8h 06mUnited Airlines

Tue 11/112:05 amSJU - STL

2 stops14h 19mUnited Airlines

Deal found 10/1

$359

Mon 10/277:54 pmSTL - MBJ

1 stop16h 51mAmerican Airlines

Fri 10/312:30 pmMBJ - STL

1 stop9h 26mAmerican Airlines

Deal found 9/28

$419

Thu 11/274:05 pmSTL - CUR

1 stop22h 15mAir Canada

Tue 12/25:20 pmCUR - STL

1 stop24h 09mAir Canada

Deal found 10/1

$421

Wed 12/35:11 pmSTL - STT

1 stop20h 00mMultiple Airlines

Sat 12/61:33 pmSTT - STL

1 stop23h 28mMultiple Airlines

Deal found 9/29

$431

Fri 10/316:00 amSTL - NAS

1 stop4h 51mDelta

Fri 11/73:15 pmNAS - STL

1 stop7h 23mDelta

Deal found 10/1

$357

Thu 11/2711:20 amSTL - SJU

1 stop8h 06mUnited Airlines

Thu 12/42:05 amSJU - STL

2 stops14h 18mUnited Airlines

Deal found 9/30

$359

Sat 10/188:00 pmSTL - PUJ

2 stops18h 17mAmerican Airlines

Thu 10/234:39 pmPUJ - STL

1 stop8h 17mAmerican Airlines

Deal found 9/30

$423

Fri 11/144:05 pmSTL - CUR

1 stop22h 15mAir Canada

Thu 11/205:20 pmCUR - STL

1 stop24h 09mAir Canada

Deal found 9/29

$423

Sat 12/68:00 amSTL - NAS

1 stop4h 30mDelta

Sat 12/132:55 pmNAS - STL

1 stop8h 02mDelta

Deal found 9/29

$357

Tue 12/910:00 amSTL - SJU

2 stops10h 22mUnited Airlines

Thu 12/112:05 amSJU - STL

2 stops12h 10mUnited Airlines

Deal found 9/30

$359

Sun 10/196:08 pmSTL - PUJ

1 stop16h 27mAmerican Airlines

Fri 10/241:47 pmPUJ - STL

2 stops19h 29mAmerican Airlines

Deal found 9/30

$423

Thu 10/307:05 amSTL - NAS

1 stop5h 44mDelta

Thu 11/61:16 pmNAS - STL

1 stop5h 46mDelta

Deal found 9/30

$357

Sun 11/24:05 pmSTL - CUR

1 stop22h 15mAir Canada

Sat 11/84:10 pmCUR - STL

2 stops25h 19mAir Canada

Deal found 9/30

$432

Last-minute flights from St. Louis to Caribbean Islands
Discover last-minute flight deals from St. Louis to Caribbean Islands. Data last updated October 1, 2025 and is based on user searches.

Sat 10/114:33 pmSTL - SJU

1 stop8h 57mFrontier

Sat 10/183:40 amSJU - STL

1 stop10h 06mFrontier

Deal found 9/29

$296

Sat 10/187:15 pmSTL - MBJ

1 stop15h 45mSpirit Airlines

Sat 10/2512:09 pmMBJ - STL

1 stop6h 01mSpirit Airlines

Deal found 10/1

$294

Sat 10/187:15 pmSTL - STT

1 stop13h 41mSpirit Airlines

Sat 10/2511:01 amSTT - STL

1 stop8h 09mSpirit Airlines

Deal found 9/29

$304

Sun 10/2610:00 amSTL - SJU

1 stop9h 00mUnited Airlines

Sat 11/12:05 amSJU - STL

1 stop10h 44mUnited Airlines

Deal found 9/28

$303

Mon 10/279:50 amSTL - SJU

1 stop13h 55mSouthwest

Mon 11/36:40 amSJU - STL

1 stop8h 05mSouthwest

Deal found 9/29

$294

Tue 10/2811:05 amSTL - SJU

1 stop7h 55mUnited Airlines

Tue 11/48:10 amSJU - STL

1 stop9h 37mUnited Airlines

Deal found 9/29

$225

Thu 10/3011:21 amSTL - SJU

1 stop9h 38mDelta

Fri 11/77:15 amSJU - STL

1 stop10h 55mDelta

Deal found 10/1

$295

Fri 10/312:12 pmSTL - SJU

1 stop6h 12mFrontier

Thu 11/63:59 amSJU - STL

1 stop7h 41mFrontier

Deal found 10/1

$272

Fri 11/74:56 pmSTL - SJU

2 stops37h 49mFrontier

Thu 11/134:31 pmSJU - STL

1 stop25h 30mFrontier

Deal found 10/1

$289

Sat 11/84:33 pmSTL - SJU

1 stop8h 21mFrontier

Sun 11/1610:39 pmSJU - STL

1 stop13h 01mFrontier

Deal found 9/29

$276

Sat 11/154:33 pmSTL - SJU

1 stop8h 21mFrontier

Sat 11/223:59 amSJU - STL

1 stop7h 30mFrontier

Deal found 10/1

$278

Thu 11/274:13 pmSTL - SJU

1 stop8h 41mFrontier

Thu 12/43:55 amSJU - STL

1 stop6h 50mFrontier

Deal found 9/29

$281

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 October 1, 2025.

Sat 10/257:15 pmSTL - MBJ

1 stop15h 45mSpirit Airlines

Deal found 9/29

$105

Tue 1/276:00 amSTL - SJU

1 stop9h 15mDelta

Deal found 10/1

$113

Thu 12/1112:20 pmSTL - SJU

1 stop22h 09mMultiple Airlines

Deal found 9/30

$118

Mon 11/106:15 amSTL - NAS

1 stop6h 18mUnited Airlines

Deal found 9/29

$125

Sat 11/17:15 pmSTL - MBJ

1 stop16h 47mSpirit Airlines

Deal found 9/29

$130

Fri 12/56:26 pmSTL - SJU

2 stops28h 31mFrontier

Deal found 10/1

$133

Tue 11/1111:05 amSTL - SJU

2 stops11h 31mUnited Airlines

Deal found 10/1

$136

Fri 10/246:42 pmSTL - SJU

1 stop6h 48mFrontier

Deal found 10/1

$137

Thu 10/231:41 pmSTL - SJU

1 stop11h 49mFrontier

Deal found 9/29

$138

Thu 11/203:14 pmSTL - SJU

1 stop7h 52mFrontier

Deal found 9/29

$139

Sat 12/65:11 pmSTL - SJU

1 stop14h 44mFrontier

Deal found 9/29

$142

Mon 3/305:59 pmSTL - SJU

2 stops13h 37mAmerican Airlines

Deal found 9/29

$143

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

Wed 12/10

6:00 am-2:14 pm

1 stop6h 14m

San Juan Luis Munoz Marin Intl

Wed 12/17

1:57 pm-6:37 pm

1 stop6h 40m

$295

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 10/18

7:15 pm-9:56 am

1 stop13h 41m

Saint Thomas Island Cyril E King

Sat 10/25

11:01 am-6:10 pm

1 stop8h 09m

$304

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Tue 11/4

11:05 am-9:00 pm

1 stop7h 55m

San Juan Luis Munoz Marin Intl

Thu 11/13

8:10 am-2:24 pm

1 stop8h 14m

$315

St. LouisWillemstad

STL - CUR

STLCUR

Lambert-St Louis

Sun 11/2

4:05 pm-4:20 pm

1 stop22h 15m

Willemstad Hato Int.

Fri 11/7

5:20 pm-3:29 pm

1 stop24h 09m

$326

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Wed 11/5

1:50 pm-12:35 am

2 stops8h 45m

San Juan Luis Munoz Marin Intl

Wed 11/12

8:55 am-7:15 pm

1 stop12h 20m

$342

St. LouisPunta Cana

STL - PUJ

STLPUJ

Lambert-St Louis

Sun 10/19

10:57 am-2:49 pm

1 stop26h 52m

Punta Cana

Fri 10/24

3:57 pm-6:10 pm

1 stop27h 13m

$351

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 11/8

6:00 am-3:11 pm

1 stop7h 11m

San Juan Luis Munoz Marin Intl

Wed 11/12

1:57 pm-9:58 pm

1 stop10h 01m

$355

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Sun 12/14

7:12 am-1:59 pm

1 stop5h 47m

Nassau Intl

Sat 12/20

6:50 pm-10:50 am

1 stop17h 00m

$357

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Fri 11/14

6:15 am-1:33 pm

1 stop6h 18m

Nassau Intl

Mon 11/17

2:35 pm-10:22 pm

1 stop8h 47m

$357

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Fri 10/31

6:00 am-1:49 pm

1 stop6h 49m

Nassau Intl

Sun 11/2

1:16 pm-6:02 pm

1 stop5h 46m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

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 June is currently the most expensive (average of $339). 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.

Reviews of airlines servicing Caribbean Islands

Read reviews from past customers who have flown Southwest, Delta, and United Airlines from St. Louis to Caribbean Islands. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,248 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

8.0

Very good

7,961 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

8,929 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

American Airlines

7.2

Good

11,030 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Frontier

5.8

Fair

3,154 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.
How long is the flight from St. Louis to Caribbean Islands?
There are many flights that can get you from St. Louis to Caribbean Islands in 6h 14m. Fly via Delta, Spirit Airlines, or United Airlines to get the fastest option. The distance between St. Louis and Caribbean Islands is about 2024 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from St. Louis to Caribbean Islands one-way?
$113 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 $125 and $125, 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.
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 June is currently the most expensive (average of $339). 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$394	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$170	Average$329	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$208	Average$609	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$219	Average$534	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$219	Average$756	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$255	Average$636	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$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 10/25. 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

1. Tell us where you want to go

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 October 1, 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 October 1, 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 October 1, 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 October 1, 2025.

Reviews of airlines servicing Caribbean Islands

Read reviews from past customers who have flown Southwest, Delta, and United Airlines from St. Louis to Caribbean Islands. You can also see how each airline compares 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?

How long is the flight 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?

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

100% Free

Book with Flexibility

Travel Smart

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 October 1, 2025.