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

Frontier, Delta, and Air Canada are the most popular carriers operating from Lambert-St Louis to Caribbean

What airlines fly to Caribbean?

American Airlines, Frontier and Southwest 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 45% 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.

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 September 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.

$92 Cheap Flights from St. Louis to Caribbean in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Caribbean

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:44 pm - 11:52 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

28h 08m2 stops Atlanta Hartsfield-Jackson Philadelphia

3:59 pm - 5:40 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

27h 41m1 stop Atlanta Hartsfield-Jackson

$182Frontier

Wed, Oct 28 - Tue, Nov 3

6:44 pm - 10:55 amSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

38h 11m2 stops Atlanta Hartsfield-Jackson Philadelphia

3:59 pm - 5:40 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

27h 41m1 stop Atlanta Hartsfield-Jackson

$195Frontier

Wed, Nov 4 - Thu, Nov 12

4:05 pm - 8:25 pmSTL Lambert-St Louis-NAS Nassau Intl

27h 20m1 stop Toronto Pearson Intl

12:30 pm - 3:26 pmNAS Nassau Intl-STL Lambert-St Louis

27h 56m1 stop Toronto Pearson Intl

$365Air Canada

Sat, Nov 21 - Fri, Nov 27

4:05 pm - 11:30 amSTL Lambert-St Louis-NAS Nassau Intl

18h 25m1 stop Toronto Pearson Intl

9:25 pm - 3:26 pmNAS Nassau Intl-STL Lambert-St Louis

19h 01m1 stop Toronto Pearson Intl

$372Air Canada

Sat, Dec 5 - Sat, Dec 12

6:08 pm - 9:41 amSTL Lambert-St Louis-NAS Nassau Intl

14h 33m1 stop Miami

12:09 pm - 5:29 pmNAS Nassau Intl-STL Lambert-St Louis

6h 20m1 stop Miami

$388American Airlines

Mon, Feb 8 - Fri, Feb 12

5:02 am - 9:16 pmSTL Lambert-St Louis-NAS Nassau Intl

15h 14m1 stop Miami

10:20 am - 9:47 pmNAS Nassau Intl-STL Lambert-St Louis

12h 27m1 stop Miami

$388American Airlines

Mon, Nov 9 - Thu, Nov 12

10:55 am - 5:15 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

4h 20mnonstop

9:40 pm - 9:20 amSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

13h 40m1 stop Orlando

$392Southwest

Sat, Nov 14 - Fri, Nov 20

6:30 am - 4:10 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

7h 40m1 stop Minneapolis St Paul

3:55 pm - 11:39 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

9h 44m1 stop Atlanta Hartsfield-Jackson

$396Delta

Tue, Jan 26 - Tue, Feb 2

3:40 pm - 11:50 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

6h 10m1 stop Atlanta Hartsfield-Jackson

6:15 am - 2:43 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

10h 28m1 stop Atlanta Hartsfield-Jackson

$396Delta

Tue, Jan 26 - Sun, Jan 31

10:35 am - 11:30 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

10h 55m2 stops Baltimore/Washington Orlando

9:35 pm - 9:20 amSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

13h 45m1 stop Orlando

$396Southwest

Sat, Dec 5 - Sun, Dec 13

Cheap last minute flights

Enter your travel dates to find the best prices.

6:39 pm - 1:52 amSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

6h 13m1 stop Orlando

6:33 am - 1:10 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

7h 37m1 stop Atlanta Hartsfield-Jackson

$399Frontier

Thu, Sep 24 - Wed, Sep 30

6:39 pm - 1:52 amSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

6h 13m1 stop Orlando

6:33 am - 1:10 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

7h 37m1 stop Atlanta Hartsfield-Jackson

$399Frontier

Thu, Sep 24 - Mon, Sep 28

12:10 pm - 11:25 amSTL Lambert-St Louis-GCM George Town Owen Roberts Intl

47h 15m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

11:25 am - 2:00 pmGCM George Town Owen Roberts Intl-STL Lambert-St Louis

26h 35m1 stop Toronto Pearson Intl

$464Air Canada

Sat, Sep 26 - Sat, Oct 10

12:10 pm - 11:25 amSTL Lambert-St Louis-GCM George Town Owen Roberts Intl

47h 15m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

11:25 am - 6:41 pmGCM George Town Owen Roberts Intl-STL Lambert-St Louis

55h 16m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$467Air Canada

Sat, Sep 26 - Sat, Oct 10

7:28 am - 1:39 pmSTL Lambert-St Louis-NAS Nassau Intl

5h 11m1 stop Charlotte Douglas

2:39 pm - 10:42 pmNAS Nassau Intl-STL Lambert-St Louis

9h 03m1 stop Charlotte Douglas

$480American Airlines

Sun, Sep 27 - Tue, Sep 29

5:13 pm - 9:42 amSTL Lambert-St Louis-NAS Nassau Intl

15h 29m2 stops Washington, D.C. Reagan-National Miami

10:32 am - 7:07 pmNAS Nassau Intl-STL Lambert-St Louis

9h 35m2 stops Miami Dallas/Fort Worth

$484American Airlines

Sun, Sep 27 - Tue, Sep 29

6:00 am - 1:53 pmSTL Lambert-St Louis-NAS Nassau Intl

6h 53m1 stop Atlanta Hartsfield-Jackson

3:18 pm - 11:42 pmNAS Nassau Intl-STL Lambert-St Louis

9h 24m1 stop Atlanta Hartsfield-Jackson

$520Delta

Thu, Sep 24 - Fri, Sep 25

12:55 pm - 10:15 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

8h 20m1 stop Orlando

8:55 pm - 7:40 amSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

11h 45m1 stop Orlando

$602Southwest

Fri, Sep 25 - Mon, Sep 28

6:30 am - 6:20 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

10h 50m1 stop Tampa

4:10 pm - 12:30 amSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

9h 20m1 stop Orlando

$602Southwest

Sat, Sep 26 - Thu, Oct 1

7:05 am - 3:35 pmSTL Lambert-St Louis-MBJ Montego Bay Sangster Intl

8h 30m1 stop Atlanta Hartsfield-Jackson

4:50 pm - 11:42 pmMBJ Montego Bay Sangster Intl-STL Lambert-St Louis

6h 52m1 stop Atlanta Hartsfield-Jackson

$651Delta

Mon, Sep 28 - Mon, Oct 5

Cheap direct flights

Enter your travel dates to find the best prices.

11:57 am - 6:09 pmSTL Lambert-St Louis-PUJ Punta Cana

4h 12mnonstop

10:17 am - 1:16 pmPUJ Punta Cana-STL Lambert-St Louis

4h 59mnonstop

$572Frontier

Sat, Dec 12 - Sat, Dec 19

11:57 am - 6:09 pmSTL Lambert-St Louis-PUJ Punta Cana

4h 12mnonstop

10:17 am - 1:16 pmPUJ Punta Cana-STL Lambert-St Louis

4h 59mnonstop

$572Frontier

Sat, Dec 12 - Sat, Dec 19

12:05 pm - 6:20 pmSTL Lambert-St Louis-PUJ Punta Cana

4h 15mnonstop

3:09 pm - 6:18 pmPUJ Punta Cana-STL Lambert-St Louis

5h 09mnonstop

$572Frontier

Wed, Nov 25 - Wed, Dec 2

12:05 pm - 6:20 pmSTL Lambert-St Louis-PUJ Punta Cana

4h 15mnonstop

3:09 pm - 6:14 pmPUJ Punta Cana-STL Lambert-St Louis

5h 05mnonstop

$572Frontier

Sat, Nov 28 - Sat, Dec 5

10:55 am - 5:15 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

4h 20mnonstop

5:15 pm - 8:15 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

5h 00mnonstop

$675Southwest

Sat, Dec 12 - Sat, Dec 19

10:55 am - 5:15 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

4h 20mnonstop

5:15 pm - 8:15 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

5h 00mnonstop

$698Southwest

Sat, Dec 12 - Sat, Dec 26

12:05 pm - 6:25 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

4h 20mnonstop

5:15 pm - 8:15 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

5h 00mnonstop

$843Southwest

Sat, Nov 21 - Sat, Nov 28

12:05 pm - 6:25 pmSTL Lambert-St Louis-SJU San Juan Luis Munoz Marin Intl

4h 20mnonstop

5:15 pm - 8:15 pmSJU San Juan Luis Munoz Marin Intl-STL Lambert-St Louis

5h 00mnonstop

$875Southwest

Sat, Nov 21 - Sat, Nov 28

8:55 am - 1:25 pmSTL Lambert-St Louis-MBJ Montego Bay Sangster Intl

3h 30mnonstop

2:00 pm - 4:55 pmMBJ Montego Bay Sangster Intl-STL Lambert-St Louis

3h 55mnonstop

$1,083Southwest

Sat, Dec 19 - Sat, Dec 26

8:55 am - 1:25 pmSTL Lambert-St Louis-MBJ Montego Bay Sangster Intl

3h 30mnonstop

2:00 pm - 4:55 pmMBJ Montego Bay Sangster Intl-STL Lambert-St Louis

3h 55mnonstop

$1,813Southwest

Sat, Dec 19 - Sat, Jan 2

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Frontier flights from St. Louis to Caribbean

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

Frontier

Oct 28

STL6:44 pmLambert-St Louis

28h 08m

2 stops

SJU11:52 pmSan Juan Luis Munoz Marin Intl

Nov 3

SJU3:59 pmSan Juan Luis Munoz Marin Intl

27h 41m

1 stop

STL5:40 pmLambert-St Louis

$182

Frontier

Nov 4

STL6:44 pmLambert-St Louis

27h 20m

2 stops

SJU12:04 amSan Juan Luis Munoz Marin Intl

Nov 12

SJU3:59 pmSan Juan Luis Munoz Marin Intl

27h 41m

1 stop

STL5:40 pmLambert-St Louis

$196

Frontier

Nov 2

STL6:44 pmLambert-St Louis

18h 35m

2 stops

SJU3:19 pmSan Juan Luis Munoz Marin Intl

Nov 12

SJU3:59 pmSan Juan Luis Munoz Marin Intl

27h 41m

1 stop

STL5:40 pmLambert-St Louis

$205

Southwest flights from St. Louis to Caribbean

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

Southwest

Nov 9

STL5:10 amLambert-St Louis

7h 50m

1 stop

STT3:00 pmSaint Thomas Island Cyril E King

Nov 12

STT3:45 pmSaint Thomas Island Cyril E King

10h 25m

1 stop

STL12:10 amLambert-St Louis

$495

Southwest

Jan 24

STL6:55 pmLambert-St Louis

17h 50m

2 stops

PLS1:45 pmProvidenciales

Jan 28

PLS2:40 pmProvidenciales

19h 45m

2 stops

STL9:25 amLambert-St Louis

$502

Southwest

Nov 9

STL5:10 amLambert-St Louis

7h 50m

1 stop

STT3:00 pmSaint Thomas Island Cyril E King

Nov 12

STT2:40 pmSaint Thomas Island Cyril E King

10h 10m

2 stops

STL10:50 pmLambert-St Louis

$508

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisSan Juan

STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl

STLSJU

Lambert-St Louis

Wed 10/28

6:44 pm-11:52 pm

2 stops28h 08m

San Juan Luis Munoz Marin Intl

Tue 11/3

3:59 pm-5:40 pm

1 stop27h 41m

$182

St. LouisSan Juan

STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl

STLSJU

Lambert-St Louis

Wed 11/4

6:44 pm-10:55 am

2 stops38h 11m

San Juan Luis Munoz Marin Intl

Thu 11/12

3:59 pm-5:40 pm

1 stop27h 41m

$195

St. LouisNassau

STL Lambert-St Louis - NAS Nassau Intl

STLNAS

Lambert-St Louis

Sat 11/21

4:05 pm-8:25 pm

1 stop27h 20m

Nassau Intl

Fri 11/27

12:30 pm-3:26 pm

1 stop27h 56m

$365

St. LouisNassau

STL Lambert-St Louis - NAS Nassau Intl

STLNAS

Lambert-St Louis

Sat 12/5

4:05 pm-11:30 am

1 stop18h 25m

Nassau Intl

Sat 12/12

9:25 pm-3:26 pm

1 stop19h 01m

$372

St. LouisNassau

STL Lambert-St Louis - NAS Nassau Intl

STLNAS

Lambert-St Louis

Mon 2/8

6:08 pm-9:41 am

1 stop14h 33m

Nassau Intl

Fri 2/12

12:09 pm-5:29 pm

1 stop6h 20m

$388

St. LouisNassau

STL Lambert-St Louis - NAS Nassau Intl

STLNAS

Lambert-St Louis

Mon 11/9

5:02 am-9:16 pm

1 stop15h 14m

Nassau Intl

Thu 11/12

10:20 am-9:47 pm

1 stop12h 27m

$388

St. LouisSan Juan

STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl

STLSJU

Lambert-St Louis

Sat 11/14

10:55 am-5:15 pm

Nonstop4h 20m

San Juan Luis Munoz Marin Intl

Fri 11/20

9:40 pm-9:20 am

1 stop13h 40m

$392

St. LouisSan Juan

STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl

STLSJU

Lambert-St Louis

Tue 1/26

6:30 am-4:10 pm

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Tue 2/2

3:55 pm-11:39 pm

1 stop9h 44m

$396

Quickest round-trip

St. LouisSan Juan

STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl

STLSJU

Lambert-St Louis

Tue 1/26

3:40 pm-11:50 pm

1 stop6h 10m

San Juan Luis Munoz Marin Intl

Sun 1/31

6:15 am-2:43 pm

1 stop10h 28m

$396

St. LouisSan Juan

STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl

STLSJU

Lambert-St Louis

Sat 12/5

10:35 am-11:30 pm

2 stops10h 55m

San Juan Luis Munoz Marin Intl

Sun 12/13

9:35 pm-9:20 am

1 stop13h 45m

$396

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

What is the cheapest month to fly to Caribbean?

In general, February 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 $555. If you don’t want to visit Caribbean in February, then you should wait until April to fly from St. Louis, when ticket prices are also cheap, with an average price of $556.

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

Fly from Lambert-St Louis to San Juan Luis Munoz Marin Intl for the best Lambert-St Louis - Caribbean flight prices

How far in advance should I book a flight from St. Louis 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 $434 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 $350 on momondo.

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

There is only 1 cabin class available to choose from on 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 49% 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	$92
Fastest flight time	3h 30m
Direct flights	Mon, Tue, Thu, Sat and Sun
Airports in Caribbean	196 airports

The best one-way flight to Caribbean from St. Louis in the past 72 hours is $92. The best round-trip flight deal from St. Louis to Caribbean found on momondo in the last 72 hours is $182.

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 196 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

Frequently asked questions about flying from 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 September 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 20.59% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 20.59%, Airbus A320neo at 17.65%, and Boeing 737 MAX 8 at 16.18%.

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 $148	Free Cancellation	Rating 5.6 2,579 reviews	Search Frontier flights
United Airlines	PriceFrom $225	Free Cancellation	Rating 7.4 10,228 reviews	Search United Airlines flights
Delta	PriceFrom $225	Free Cancellation	Rating 7.8 8,591 reviews	Search Delta flights
American Airlines	PriceFrom $246	Free Cancellation	Rating 7.0 12,075 reviews	Search American Airlines flights
Southwest	PriceFrom $334	Free Cancellation	Rating 8.0 4,196 reviews	Search Southwest flights
JetBlue	PriceFrom $381	Free Cancellation	Rating 7.1 3,037 reviews	Search JetBlue 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.