What airlines fly to Caribbean Islands?

American Airlines, Frontier and Delta are the top three most popular airlines that fly to Caribbean Islands from St. Louis according to our data. American Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Caribbean Islands. Keep in mind that there are 6 different airlines that fly to Caribbean Islands on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Caribbean Islands?

Frontier, United Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Caribbean Islands

How many flights depart from St. Louis to Caribbean Islands on average per week?

As of May 2026, there are 3 flights per week flying from St. Louis to Caribbean Islands. The most common day of the week flights depart is Mon, with 33% of flights taking off on this day.

When did momondo last update prices for flights from Lambert-St Louis Airport to Caribbean Islands?

Prices for flights from Lambert-St Louis Airport to Caribbean Islands were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Caribbean Islands?

As of May 2026, there are 6 operators available to choose from for flights from Lambert-St Louis Airport to Caribbean Islands.

How old do you have to be to fly from Lambert-St Louis Airport to Caribbean Islands?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Caribbean Islands.

What documentation or ID do you need to fly to Caribbean Islands?

The required travel and health documents for your Caribbean Islands trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Caribbean Islands. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$108 Cheap Flights from St. Louis to Caribbean Islands in 2026

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Find the cheapest flights from St. Louis to Caribbean Islands

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:00 am - 3:30 pm

STL

PUJ

4h 30mnonstop

11:34 am - 3:12 pm

PUJ

STL

4h 38mnonstop

$237Frontier

Sat, Jul 25 - Wed, Jul 29

3:34 pm - 5:02 am

STL

SJU

12h 28m

1 stop

6:31 pm - 11:59 pm

SJU

STL

6h 28m

1 stop

$238Frontier

Sat, Jul 18 - Wed, Jul 22

8:14 pm - 11:36 am

STL

NAS

14h 22m

1 stop

6:06 pm - 8:50 am

NAS

STL

15h 44m

1 stop

$376American Airlines

Sun, Jun 7 - Thu, Jun 11

8:14 pm - 11:36 am

STL

NAS

14h 22m

1 stop

8:00 am - 4:33 pm

NAS

STL

9h 33m

2 stops

$380American Airlines

Sun, Jun 7 - Thu, Jun 11

6:00 am - 11:41 am

STL

GCM

5h 41m

1 stop

12:56 pm - 11:37 pm

GCM

STL

10h 41m

1 stop

$389Delta

Wed, Aug 19 - Tue, Aug 25

6:33 pm - 12:21 pm

STL

MBJ

17h 48m

1 stop

1:05 pm - 8:52 am

MBJ

STL

19h 47m

2 stops

$423Multiple Airlines

Tue, Aug 18 - Tue, Aug 25

6:00 am - 2:10 pm

STL

AUA

7h 10m

1 stop

1:55 pm - 9:44 am

AUA

STL

20h 49m

2 stops

$432Delta

Mon, May 25 - Tue, Jun 2

4:17 pm - 3:37 pm

STL

STT

22h 20m

1 stop

4:39 pm - 11:49 pm

STT

STL

8h 10m

1 stop

$451Multiple Airlines

Fri, Jun 19 - Tue, Jun 23

6:14 am - 2:25 pm

STL

PLS

7h 11m

1 stop

3:30 pm - 10:07 am

PLS

STL

19h 37m

1 stop

$470United Airlines

Sun, Jul 5 - Fri, Jul 10

6:00 am - 3:30 pm

STL

AUA

8h 30m

1 stop

1:50 pm - 9:16 pm

AUA

STL

8h 26m

1 stop

$470United Airlines

Sat, May 30 - Sat, Jun 6

Frontier flights from St. Louis to Caribbean Islands

Our best Frontier deals on St. Louis to Caribbean Islands flight tickets

Frontier

Jul 18

STL3:34 pmLambert-St Louis

12h 28m

1 stop

SJU5:02 amSan Juan Luis Munoz Marin Intl

Jul 22

SJU6:31 pmSan Juan Luis Munoz Marin Intl

6h 28m

1 stop

STL11:59 pmLambert-St Louis

$238

Frontier

Aug 1

STL4:09 pmLambert-St Louis

9h 02m

1 stop

SJU2:11 amSan Juan Luis Munoz Marin Intl

Aug 10

SJU6:00 amSan Juan Luis Munoz Marin Intl

18h 59m

1 stop

STL11:59 pmLambert-St Louis

$240

Frontier

Jun 19

STL4:17 pmLambert-St Louis

8h 52m

1 stop

SJU2:09 amSan Juan Luis Munoz Marin Intl

Jun 24

SJU6:05 pmSan Juan Luis Munoz Marin Intl

6h 44m

1 stop

STL11:49 pmLambert-St Louis

$256

Southwest flights from St. Louis to Caribbean Islands

Our best Southwest deals on St. Louis to Caribbean Islands flight tickets

Southwest

Jul 22

STL1:45 pmLambert-St Louis

9h 00m

2 stops

SJU11:45 pmSan Juan Luis Munoz Marin Intl

Jul 30

SJU10:20 pmSan Juan Luis Munoz Marin Intl

11h 00m

1 stop

STL8:20 amLambert-St Louis

$373

Southwest

Jun 20

STL9:25 amLambert-St Louis

3h 40m

MBJ1:05 pmMontego Bay Sangster Intl

Jul 11

MBJ2:30 pmMontego Bay Sangster Intl

7h 15m

1 stop

STL9:45 pmLambert-St Louis

$534

Southwest

Jul 27

STL5:00 amLambert-St Louis

8h 55m

1 stop

MBJ1:55 pmMontego Bay Sangster Intl

Aug 1

MBJ2:05 pmMontego Bay Sangster Intl

3h 45m

STL5:50 pmLambert-St Louis

$558

momondo 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

Cheapest round-trip

Quickest round-trip

St. LouisPunta Cana

STL - PUJ

STLPUJ

Lambert-St Louis

Sat 7/25

10:00 am-3:30 pm

Nonstop4h 30m

Punta Cana

Wed 7/29

11:34 am-3:12 pm

Nonstop4h 38m

$237

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 7/18

3:34 pm-5:02 am

1 stop12h 28m

San Juan Luis Munoz Marin Intl

Wed 7/22

6:31 pm-11:59 pm

1 stop6h 28m

$238

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Sun 6/7

8:14 pm-11:36 am

1 stop14h 22m

Nassau Intl

Thu 6/11

6:06 pm-8:50 am

1 stop15h 44m

$376

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

Sun 6/7

8:14 pm-11:36 am

1 stop14h 22m

Nassau Intl

Thu 6/11

8:00 am-4:33 pm

2 stops9h 33m

$380

St. LouisGeorge Town

STL - GCM

STLGCM

Lambert-St Louis

Wed 8/19

6:00 am-11:41 am

1 stop5h 41m

George Town Owen Roberts Intl

Tue 8/25

12:56 pm-11:37 pm

1 stop10h 41m

$389

St. LouisMontego Bay

STL - MBJ

STLMBJ

Lambert-St Louis

Tue 8/18

6:33 pm-12:21 pm

1 stop17h 48m

Montego Bay Sangster Intl

Tue 8/25

1:05 pm-8:52 am

2 stops19h 47m

$423

St. LouisOranjestad

STL - AUA

STLAUA

Lambert-St Louis

Mon 5/25

6:00 am-2:10 pm

1 stop7h 10m

Oranjestad Reina Beatrix

Tue 6/2

1:55 pm-9:44 am

2 stops20h 49m

$432

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Fri 6/19

4:17 pm-3:37 pm

1 stop22h 20m

Saint Thomas Island Cyril E King

Tue 6/23

4:39 pm-11:49 pm

1 stop8h 10m

$451

St. LouisProvidenciales

STL - PLS

STLPLS

Lambert-St Louis

Sun 7/5

6:14 am-2:25 pm

1 stop7h 11m

Providenciales

Fri 7/10

3:30 pm-10:07 am

1 stop19h 37m

$470

St. LouisOranjestad

STL - AUA

STLAUA

Lambert-St Louis

Sat 5/30

6:00 am-3:30 pm

1 stop8h 30m

Oranjestad Reina Beatrix

Sat 6/6

1:50 pm-9:16 pm

1 stop8h 26m

$470

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Caribbean Islands

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Caribbean Islands?

The month of July is, on average, the cheapest month to fly to Caribbean Islands from St. Louis, with most prices found around $120. The month of December is another great option to travel to Caribbean Islands, with average flight prices from St. Louis averaging around $145.

What is the cheapest Lambert-St Louis to Caribbean Islands flight route?

Fly from Lambert-St Louis to Montego Bay Sangster Intl for the best Lambert-St Louis - Caribbean Islands flight prices

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

You are more likely to see cheaper flights to Caribbean Islands from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean Islands for around $424 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean Islands from St. Louis for as low as $348 on momondo.

Can stopping save me money on St. Louis to Caribbean Islands flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Caribbean Islands.

Cheap St. Louis to Caribbean Islands flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Caribbean Islands

Fastest flight time	3h 30m
Direct flights	Mon, Tue, Thu, Sat and Sun
Airports in Caribbean Islands	99 airports

The fastest flight from St. Louis to Caribbean Islands takes 3h 30m

Direct flights go from St. Louis to Caribbean Islands on Monday, Tuesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights.

There are 99 airports in Caribbean Islands. From St. Louis there are direct flights to Montego Bay Sangster Intl (MBJ), Punta Cana (PUJ), San Juan Luis Munoz Marin Intl (SJU).

Search flight deals

Frequently asked questions about flying from St. Louis to Caribbean Islands

When did momondo last update prices for flights from Lambert-St Louis Airport to Caribbean Islands?
Prices for flights from Lambert-St Louis Airport to Caribbean Islands were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Caribbean Islands?
As of May 2026, there are 6 operators available to choose from for flights from Lambert-St Louis Airport to Caribbean Islands.
How old do you have to be to fly from Lambert-St Louis Airport to Caribbean Islands?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Caribbean Islands.
What documentation or ID do you need to fly to Caribbean Islands?
The required travel and health documents for your Caribbean Islands trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Caribbean Islands. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from St. Louis to Caribbean Islands?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Caribbean Islands is Boeing 737 MAX 8, representing 25.98% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 18.60%, Embraer 175 at 7.07%, and Airbus A319 at 6.00%.

Best airlines flying from St. Louis to Caribbean Islands

Compare and see reviews for airlines that fly from St. Louis to Caribbean Islands with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $138	Free Cancellation	Rating 5.6 2,966 reviews	Search Frontier flights
Delta	PriceFrom $174	Free Cancellation	Rating 7.9 8,459 reviews	Search Delta flights
Southwest	PriceFrom $220	Free Cancellation	Rating 7.9 4,305 reviews	Search Southwest flights
United Airlines	PriceFrom $225	Free Cancellation	Rating 7.4 9,683 reviews	Search United Airlines flights
American Airlines	PriceFrom $226	Free Cancellation	Rating 7.1 11,668 reviews	Search American Airlines flights
Spirit Airlines	PriceFrom $233	Free Cancellation	Rating 6.3 8,634 reviews	Search Spirit Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Caribbean Islands?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Caribbean Islands. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Caribbean Islands with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Caribbean Islands from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Caribbean Islands?

momondo helps you find the best flight between St. Louis and Caribbean Islands by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Caribbean Islands right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Caribbean Islands flights. All you need is a valid email address and we will do the rest; it is that quick and easy.