What airlines fly to Caribbean?

American Airlines, Delta and Frontier are the top three most popular airlines that fly to Caribbean from St. Louis according to our data. American Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Caribbean. Keep in mind that there are 6 different airlines that fly to Caribbean on a routine basis, so you have a few additional options to choose from.

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

As of March 2026, 2 flights take off from St. Louis and land in Caribbean each week. The most common flight departure day for this route is Mon, with 50% of weekly flights taking off on this day.

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

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

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

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

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

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

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Caribbean.

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

The necessary travel and health documents for your Caribbean trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$100 Cheap Flights from St. Louis to Caribbean in 2026

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:55 pm - 2:01 am

STL

SJU

8h 06m

1 stop

3:19 pm - 11:19 pm

SJU

STL

9h 00m

1 stop

$202Frontier

Sat, May 9 - Wed, May 13

4:59 pm - 9:54 am

STL

SJU

15h 55m

1 stop

6:30 am - 11:19 pm

SJU

STL

17h 49m

1 stop

$213Frontier

Sun, May 3 - Wed, May 6

1:03 pm - 11:12 pm

STL

SJU

9h 09m

1 stop

6:15 am - 11:56 am

SJU

STL

6h 41m

1 stop

$216Delta

Wed, Apr 15 - Wed, Apr 22

4:55 pm - 2:01 am

STL

SJU

8h 06m

1 stop

3:08 am - 11:19 pm

SJU

STL

21h 11m

1 stop

$221Frontier

Sat, May 9 - Tue, May 12

6:29 am - 10:05 pm

STL

SJU

14h 36m

1 stop

7:25 am - 7:30 pm

SJU

STL

13h 05m

1 stop

$222American Airlines

Wed, Apr 15 - Wed, Apr 22

3:25 pm - 11:55 pm

STL

SJU

7h 30m

1 stop

6:50 am - 1:45 pm

SJU

STL

7h 55m

1 stop

$229Southwest

Mon, May 11 - Fri, May 15

6:11 pm - 11:31 am

STL

GCM

17h 20m

2 stops

12:00 pm - 8:30 am

GCM

STL

20h 30m

2 stops

$322American Airlines

Sat, Apr 18 - Thu, Apr 23

6:00 am - 1:18 pm

STL

STX

6h 18m

1 stop

2:24 pm - 11:58 pm

STX

STL

10h 34m

1 stop

$336Delta

Tue, Mar 24 - Tue, Mar 31

8:30 am - 3:05 pm

STL

GCM

6h 35m

1 stop

1:35 pm - 10:28 pm

GCM

STL

8h 53m

1 stop

$342United Airlines

Sat, Apr 18 - Thu, Apr 23

6:00 am - 12:30 pm

STL

GCM

6h 30m

1 stop

1:50 pm - 8:25 am

GCM

STL

18h 35m

1 stop

$343United Airlines

Wed, Apr 15 - Mon, Apr 20

Frontier flights from St. Louis to Caribbean

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

Frontier

May 9

STL4:55 pmLambert-St Louis

8h 06m

1 stop

SJU2:01 amSan Juan Luis Munoz Marin Intl

May 13

SJU3:19 pmSan Juan Luis Munoz Marin Intl

9h 00m

1 stop

STL11:19 pmLambert-St Louis

$202

Frontier

May 3

STL4:59 pmLambert-St Louis

15h 55m

1 stop

SJU9:54 amSan Juan Luis Munoz Marin Intl

May 6

SJU6:30 amSan Juan Luis Munoz Marin Intl

17h 49m

1 stop

STL11:19 pmLambert-St Louis

$213

Frontier

May 9

STL4:55 pmLambert-St Louis

8h 06m

1 stop

SJU2:01 amSan Juan Luis Munoz Marin Intl

May 12

SJU3:08 amSan Juan Luis Munoz Marin Intl

21h 11m

1 stop

STL11:19 pmLambert-St Louis

$221

Delta flights from St. Louis to Caribbean

Our best Delta deals on St. Louis to Caribbean flight tickets

Delta

Apr 15

STL1:03 pmLambert-St Louis

9h 09m

1 stop

SJU11:12 pmSan Juan Luis Munoz Marin Intl

Apr 22

SJU6:15 amSan Juan Luis Munoz Marin Intl

6h 41m

1 stop

STL11:56 amLambert-St Louis

$216

Delta

Mar 24

STL6:00 amLambert-St Louis

6h 18m

1 stop

STX1:18 pmChristiansted Henry Rohlsen

Mar 31

STX2:24 pmChristiansted Henry Rohlsen

10h 34m

1 stop

STL11:58 pmLambert-St Louis

$336

Delta

Apr 15

STL6:00 amLambert-St Louis

9h 33m

1 stop

NAS4:33 pmNassau Intl

Apr 22

NAS5:58 pmNassau Intl

6h 38m

1 stop

STL11:36 pmLambert-St Louis

$376

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/9

4:55 pm-2:01 am

1 stop8h 06m

San Juan Luis Munoz Marin Intl

Wed 5/13

3:19 pm-11:19 pm

1 stop9h 00m

$202

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 5/3

4:59 pm-9:54 am

1 stop15h 55m

San Juan Luis Munoz Marin Intl

Wed 5/6

6:30 am-11:19 pm

1 stop17h 49m

$213

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Wed 4/15

1:03 pm-11:12 pm

1 stop9h 09m

San Juan Luis Munoz Marin Intl

Wed 4/22

6:15 am-11:56 am

1 stop6h 41m

$216

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/9

4:55 pm-2:01 am

1 stop8h 06m

San Juan Luis Munoz Marin Intl

Tue 5/12

3:08 am-11:19 pm

1 stop21h 11m

$221

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Wed 4/15

6:29 am-10:05 pm

1 stop14h 36m

San Juan Luis Munoz Marin Intl

Wed 4/22

7:25 am-7:30 pm

1 stop13h 05m

$222

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Mon 5/11

3:25 pm-11:55 pm

1 stop7h 30m

San Juan Luis Munoz Marin Intl

Fri 5/15

6:50 am-1:45 pm

1 stop7h 55m

$229

St. LouisGeorge Town

STL - GCM

STLGCM

Lambert-St Louis

Sat 4/18

6:11 pm-11:31 am

2 stops17h 20m

George Town Owen Roberts Intl

Thu 4/23

12:00 pm-8:30 am

2 stops20h 30m

$322

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Tue 3/24

6:00 am-1:18 pm

1 stop6h 18m

Christiansted Henry Rohlsen

Tue 3/31

2:24 pm-11:58 pm

1 stop10h 34m

$336

St. LouisGeorge Town

STL - GCM

STLGCM

Lambert-St Louis

Sat 4/18

8:30 am-3:05 pm

1 stop6h 35m

George Town Owen Roberts Intl

Thu 4/23

1:35 pm-10:28 pm

1 stop8h 53m

$342

St. LouisGeorge Town

STL - GCM

STLGCM

Lambert-St Louis

Wed 4/15

6:00 am-12:30 pm

1 stop6h 30m

George Town Owen Roberts Intl

Mon 4/20

1:50 pm-8:25 am

1 stop18h 35m

$343

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

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?

In general, September is the cheapest month to fly from St. Louis to Caribbean. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $219. If you don’t want to visit Caribbean in September, then you should wait until April to fly from St. Louis, when ticket prices are also cheap, with an average price of $359.

What is the cheapest time of day to depart on your flight to Caribbean?

In the morning is the cheapest time of day to fly from St. Louis to Caribbean when you can find flight prices for as low as $646. Flying to Caribbean in the morning is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $710.

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

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

How far in advance should I book a flight to Caribbean?

You are more likely to see cheaper flights to Caribbean from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean for around $437 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean from St. Louis for as low as $316 on momondo.

What cabin class options are available on Lambert-St Louis to Caribbean flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Caribbean flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 55% on your flight if you consider stops on a St. Louis to Caribbean flight.

Cheap St. Louis to Caribbean flight deals and tips

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

Best Price Found	$486
Fastest flight time	3h 30m
Direct flights	Mon, Tue, Thu, Sat and Sun
Airports in Caribbean	195 airports

The best flight deal from St. Louis to Caribbean found on momondo in the last 72 hours is $486

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

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

There are 195 airports in Caribbean. 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

When did momondo last update prices for flights from Lambert-St Louis Airport to Caribbean?
Prices for flights from Lambert-St Louis Airport to Caribbean were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Caribbean?
As of March 2026, there are 6 operators available to choose from for flights from Lambert-St Louis Airport to Caribbean.
How old do you have to be to fly from Lambert-St Louis Airport to Caribbean?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Caribbean.
What documentation or ID do you need to fly to Caribbean?
The necessary travel and health documents for your Caribbean trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Caribbean?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Caribbean is Airbus A321neo, representing 51.35% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 22.52%, Boeing 737-800 Passenger/BBJ2 (winglets) at 9.91%, and Airbus A320neo at 7.21%.

Best airlines flying from St. Louis to Caribbean

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $140	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $146	Free Cancellation	Rating 6.3 8,490 reviews	Search Spirit Airlines flights
Delta	PriceFrom $156	Free Cancellation	Rating 7.9 8,245 reviews	Search Delta flights
Southwest	PriceFrom $219	Free Cancellation	Rating 8.0 4,304 reviews	Search Southwest flights
United Airlines	PriceFrom $225	Free Cancellation	Rating 7.4 9,382 reviews	Search United Airlines flights
American Airlines	PriceFrom $229	Free Cancellation	Rating 7.1 11,380 reviews	Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Caribbean. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Caribbean from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between St. Louis and Caribbean 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 right now. Can momondo alert me if prices change?

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

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Popular cities

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Popular cities in Caribbean

Flights to San Juanfrom $89

Flights to Punta Canafrom $214

Flights to Santo Domingofrom $199

Flights to Montego Bayfrom $223

Flights to Oranjestadfrom $213

Flights to Nassaufrom $258

Flights to Santiago de los Caballerosfrom $240

Flights to Saint Thomas Islandfrom $132

Flights to Kingstonfrom $278

Flights to Simpson Bayfrom $245

Flights to Willemstadfrom $226

Flights to Port of Spainfrom $280

Cheap flights from St. Louis to Caribbean from $100

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Caribbean departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from St. Louis to Caribbean

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

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Our best Delta deals on St. Louis to Caribbean flight tickets

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

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

What is the cheapest month to fly to Caribbean?

What is the cheapest time of day to depart on your flight to Caribbean?

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

How far in advance should I book a flight to Caribbean?

What cabin class options are available on Lambert-St Louis to Caribbean flights?

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

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

What airlines fly to Caribbean?

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

Cheap St. Louis to Caribbean flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Caribbean

Best airlines flying from St. Louis to Caribbean

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

Why use momondo?

An easier way to manage your Caribbean trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Caribbean

Popular cities in Caribbean

Popular flights according to clicks in the last 7 days on momondo

St. Louis flight routes

According to popular flight searches on momondo this year

Caribbean flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Caribbean

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Caribbean

List of cabin classes available on flights landing in Caribbean. Availability may vary depending on flight origin and airline.

Complete your trip to Caribbean

Explore popular destinations other users love

According to popular flight searches on momondo this year