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Cheap flights from St. Louis to Caribbean Islands from $87

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 Islands departing on 2/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Caribbean Islands

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
3:49 pm - 2:53 am
STL
-
SJU
9h 04m
1 stop
Frontier Logo
11:07 am - 10:27 pm
SJU
-
STL
13h 20m
1 stop
$188Frontier
man., mar. 2 - ons., mar. 4
Frontier Logo
4:54 pm - 2:01 am
STL
-
SJU
8h 07m
1 stop
Frontier Logo
11:07 am - 11:19 pm
SJU
-
STL
13h 12m
1 stop
$202Frontier
tir., apr. 7 - ons., apr. 15
Multiple Airlines Logo
3:49 pm - 2:31 pm
STL
-
STT
20h 42m
1 stop
Multiple Airlines Logo
5:40 pm - 6:51 am
STT
-
STL
15h 11m
2 stops
$214Multiple Airlines
tir., feb. 24 - tir., mar. 3
Multiple Airlines Logo
3:49 pm - 2:31 pm
STL
-
STT
20h 42m
1 stop
Multiple Airlines Logo
5:40 pm - 6:51 am
STT
-
STL
15h 11m
2 stops
$215Multiple Airlines
lør., feb. 28 - tir., mar. 3
Delta Logo
6:00 am - 2:25 pm
STL
-
PLS
7h 25m
1 stop
Delta Logo
3:50 pm - 11:36 pm
PLS
-
STL
8h 46m
1 stop
$363Delta
ons., feb. 25 - ons., mar. 4
American Airlines Logo
6:20 pm - 1:53 pm
STL
-
STX
17h 33m
1 stop
American Airlines Logo
6:27 pm - 11:56 pm
STX
-
STL
7h 29m
1 stop
$364American Airlines
lør., feb. 28 - tor., mar. 5
United Airlines Logo
6:00 am - 12:30 pm
STL
-
GCM
6h 30m
1 stop
United Airlines Logo
1:35 pm - 10:28 pm
GCM
-
STL
8h 53m
1 stop
$367United Airlines
tir., mar. 31 - tir., apr. 7
American Airlines Logo
6:36 pm - 5:37 pm
STL
-
STX
21h 01m
2 stops
American Airlines Logo
6:27 pm - 10:32 am
STX
-
STL
18h 05m
1 stop
$368American Airlines
lør., feb. 28 - tor., mar. 5
Delta Logo
6:00 am - 2:25 pm
STL
-
PLS
7h 25m
1 stop
Delta Logo
1:25 pm - 11:36 pm
PLS
-
STL
11h 11m
2 stops
$368Delta
ons., feb. 25 - ons., mar. 4
United Airlines Logo
7:41 am - 3:22 pm
STL
-
NAS
6h 41m
1 stop
United Airlines Logo
4:25 pm - 11:59 pm
NAS
-
STL
8h 34m
1 stop
$374United Airlines
tir., feb. 17 - tir., feb. 24

Frontier flights from St. Louis to Caribbean Islands

Our best Frontier deals on St. Louis to Caribbean Islands flight tickets
Frontier
Mar 2
STL3:49 pmLambert-St Louis
9h 04m
1 stop
SJU2:53 amSan Juan Luis Munoz Marin Intl
Mar 4
SJU11:07 amSan Juan Luis Munoz Marin Intl
13h 20m
1 stop
STL10:27 pmLambert-St Louis
$188
Frontier
Apr 7
STL4:54 pmLambert-St Louis
8h 07m
1 stop
SJU2:01 amSan Juan Luis Munoz Marin Intl
Apr 15
SJU11:07 amSan Juan Luis Munoz Marin Intl
13h 12m
1 stop
STL11:19 pmLambert-St Louis
$202
Frontier
Mar 3
STL3:49 pmLambert-St Louis
9h 04m
1 stop
SJU2:53 amSan Juan Luis Munoz Marin Intl
Mar 9
SJU10:04 amSan Juan Luis Munoz Marin Intl
14h 15m
1 stop
STL11:19 pmLambert-St Louis
$208

Delta flights from St. Louis to Caribbean Islands

Our best Delta deals on St. Louis to Caribbean Islands flight tickets
Delta
May 3
STL11:43 amLambert-St Louis
10h 30m
1 stop
SJU11:13 pmSan Juan Luis Munoz Marin Intl
May 7
SJU5:15 pmSan Juan Luis Munoz Marin Intl
7h 44m
1 stop
STL11:59 pmLambert-St Louis
$246
Delta
Feb 25
STL6:00 amLambert-St Louis
7h 25m
1 stop
PLS2:25 pmProvidenciales
Mar 4
PLS3:50 pmProvidenciales
8h 46m
1 stop
STL11:36 pmLambert-St Louis
$363
Delta
Feb 25
STL6:00 amLambert-St Louis
7h 25m
1 stop
PLS2:25 pmProvidenciales
Mar 4
PLS1:25 pmProvidenciales
11h 11m
2 stops
STL11:36 pmLambert-St Louis
$368

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Caribbean Islands that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated februar 3, 2026.
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

man. 3/2

3:49 pm-2:53 am

1 stop9h 04m

San Juan Luis Munoz Marin Intl

ons. 3/4

11:07 am-10:27 pm

1 stop13h 20m

$188

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

tir. 4/7

4:54 pm-2:01 am

1 stop8h 07m

San Juan Luis Munoz Marin Intl

ons. 4/15

11:07 am-11:19 pm

1 stop13h 12m

$202

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

tir. 2/24

3:49 pm-2:31 pm

1 stop20h 42m

Saint Thomas Island Cyril E King

tir. 3/3

5:40 pm-6:51 am

2 stops15h 11m

$214

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

lør. 2/28

3:49 pm-2:31 pm

1 stop20h 42m

Saint Thomas Island Cyril E King

tir. 3/3

5:40 pm-6:51 am

2 stops15h 11m

$215

St. LouisProvidenciales

STL - PLS

STLPLS

Lambert-St Louis

ons. 2/25

6:00 am-2:25 pm

1 stop7h 25m

Providenciales

ons. 3/4

3:50 pm-11:36 pm

1 stop8h 46m

$363

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

lør. 2/28

6:20 pm-1:53 pm

1 stop17h 33m

Christiansted Henry Rohlsen

tor. 3/5

6:27 pm-11:56 pm

1 stop7h 29m

$364

St. LouisGeorge Town

STL - GCM

STLGCM

Lambert-St Louis

tir. 3/31

6:00 am-12:30 pm

1 stop6h 30m

George Town Owen Roberts Intl

tir. 4/7

1:35 pm-10:28 pm

1 stop8h 53m

$367

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

lør. 2/28

6:36 pm-5:37 pm

2 stops21h 01m

Christiansted Henry Rohlsen

tor. 3/5

6:27 pm-10:32 am

1 stop18h 05m

$368

St. LouisProvidenciales

STL - PLS

STLPLS

Lambert-St Louis

ons. 2/25

6:00 am-2:25 pm

1 stop7h 25m

Providenciales

ons. 3/4

1:25 pm-11:36 pm

2 stops11h 11m

$368

St. LouisNassau

STL - NAS

STLNAS

Lambert-St Louis

tir. 2/17

7:41 am-3:22 pm

1 stop6h 41m

Nassau Intl

tir. 2/24

4:25 pm-11:59 pm

1 stop8h 34m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Caribbean Islands from

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

What is the cheapest month to fly to Caribbean Islands?

The month of September is, on average, the cheapest month to fly to Caribbean Islands from St. Louis, with most prices found around $219. The month of April is another great option to travel to Caribbean Islands, with average flight prices from St. Louis averaging around $361.

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

According to our data, the cheapest time of day to fly to Caribbean Islands is in the morning. momondo users have found flights departing from St. Louis to Caribbean Islands in the morning for as low as $646. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $660. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from Lambert-St Louis to Punta Cana for the best Lambert-St Louis - Caribbean Islands flight prices

How far in advance should I book a flight 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 $437 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 $329 on momondo.

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

There is only 1 cabin class available to choose from on Lambert-St Louis to Caribbean Islands 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 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

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 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

  • 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?

  • 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?

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
FrontierPriceFrom $133Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $146Free CancellationRating
6.3
8,404 reviews
Search Spirit Airlines flights
DeltaPriceFrom $180Free CancellationRating
7.9
8,138 reviews
Search Delta flights
SouthwestPriceFrom $219Free CancellationRating
8.0
4,272 reviews
Search Southwest flights
United AirlinesPriceFrom $225Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,216 reviews
Search American 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.

An easier way to manage your Caribbean Islands trip

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