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Cheap flights from Trinidad and Tobago to St. Louis from $690

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Trinidad and Tobago to St. Louis departing on 7/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Trinidad and Tobago to St. Louis

Recent round-trip flight deals from Trinidad and Tobago to St. Louis

Enter your travel dates to find the best prices.
United Airlines Logo
12:30 am - 10:07 am
POS
-
STL
10h 37m
1 stop
United Airlines Logo
7:05 pm - 11:23 pm
STL
-
POS
27h 18m
2 stops
$690United Airlines
Thu, Jul 16 - Sun, Aug 2
United Airlines Logo
1:30 am - 9:42 am
POS
-
STL
10h 12m
1 stop
United Airlines Logo
6:15 am - 12:23 am
STL
-
POS
16h 08m
1 stop
$692United Airlines
Sun, Nov 22 - Tue, Dec 8
United Airlines Logo
1:30 am - 12:34 am
POS
-
STL
25h 04m
2 stops
United Airlines Logo
11:00 am - 12:23 am
STL
-
POS
11h 23m
1 stop
$694United Airlines
Sun, Nov 22 - Tue, Dec 8
Air Canada Logo
1:25 am - 6:42 pm
POS
-
STL
18h 17m
2 stops
Air Canada Logo
8:55 am - 12:15 am
STL
-
POS
14h 20m
1 stop
$697Air Canada
Wed, Jul 8 - Fri, Jul 24
United Airlines Logo
1:30 am - 9:42 am
POS
-
STL
10h 12m
1 stop
United Airlines Logo
11:00 am - 12:23 am
STL
-
POS
11h 23m
1 stop
$715United Airlines
Fri, Nov 20 - Tue, Dec 8
United Airlines Logo
1:30 am - 2:18 pm
POS
-
STL
14h 48m
2 stops
United Airlines Logo
6:15 am - 12:23 am
STL
-
POS
16h 08m
1 stop
$717United Airlines
Fri, Nov 20 - Tue, Dec 8
American Airlines Logo
7:00 am - 10:54 pm
POS
-
STL
16h 54m
1 stop
American Airlines Logo
6:14 am - 10:33 pm
STL
-
POS
15h 19m
2 stops
$759American Airlines
Fri, Jul 10 - Fri, Jul 24
United Airlines Logo
12:30 am - 8:40 pm
POS
-
STL
21h 10m
1 stop
United Airlines Logo
11:10 am - 11:23 pm
STL
-
POS
11h 13m
1 stop
$764United Airlines
Thu, Jul 9 - Fri, Jul 24
United Airlines Logo
2:00 am - 11:16 am
POS
-
STL
10h 16m
1 stop
United Airlines Logo
7:00 am - 12:50 am
STL
-
POS
16h 50m
1 stop
$794United Airlines
Sat, Aug 22 - Sat, Aug 29
United Airlines Logo
12:30 am - 10:10 am
POS
-
STL
10h 40m
1 stop
United Airlines Logo
8:00 am - 11:23 pm
STL
-
POS
14h 23m
2 stops
$798United Airlines
Sat, Aug 22 - Sat, Aug 29

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United Airlines flights from Trinidad and Tobago to St. Louis

Our best United Airlines deals on Trinidad and Tobago to St. Louis flight tickets
United Airlines
Jul 16
POS12:30 amPort of Spain Piarco Intl
10h 37m
1 stop
STL10:07 amLambert-St Louis
Aug 2
STL7:05 pmLambert-St Louis
27h 18m
2 stops
POS11:23 pmPort of Spain Piarco Intl
$690
United Airlines
Nov 22
POS1:30 amPort of Spain Piarco Intl
10h 12m
1 stop
STL9:42 amLambert-St Louis
Dec 8
STL6:15 amLambert-St Louis
16h 08m
1 stop
POS12:23 amPort of Spain Piarco Intl
$692
United Airlines
Nov 22
POS1:30 amPort of Spain Piarco Intl
25h 04m
2 stops
STL12:34 amLambert-St Louis
Dec 8
STL11:00 amLambert-St Louis
11h 23m
1 stop
POS12:23 amPort of Spain Piarco Intl
$694

Air Canada flights from Trinidad and Tobago to St. Louis

Our best Air Canada deals on Trinidad and Tobago to St. Louis flight tickets
Air Canada
Jun 21
POS1:25 amPort of Spain Piarco Intl
11h 56m
1 stop
STL12:21 pmLambert-St Louis
Jul 22
STL8:55 amLambert-St Louis
14h 20m
1 stop
POS12:15 amPort of Spain Piarco Intl
$644
Air Canada
Jun 21
POS1:25 amPort of Spain Piarco Intl
20h 00m
2 stops
STL8:25 pmLambert-St Louis
Jul 22
STL8:55 amLambert-St Louis
14h 20m
1 stop
POS12:15 amPort of Spain Piarco Intl
$667
Air Canada
Jul 8
POS1:25 amPort of Spain Piarco Intl
18h 17m
2 stops
STL6:42 pmLambert-St Louis
Jul 24
STL8:55 amLambert-St Louis
14h 20m
1 stop
POS12:15 amPort of Spain Piarco Intl
$697

momondo Fare Finder

 
Customize your flight search to find flights from Trinidad and Tobago to St. Louis 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 June 21, 2026.
Use the filters below to find and compare flights from Trinidad and Tobago to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Thu 7/16

12:30 am-10:07 am

1 stop10h 37m

Lambert-St Louis

Sun 8/2

7:05 pm-11:23 pm

2 stops27h 18m

$690

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Sun 11/22

1:30 am-9:42 am

1 stop10h 12m

Lambert-St Louis

Tue 12/8

6:15 am-12:23 am

1 stop16h 08m

$692

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Sun 11/22

1:30 am-12:34 am

2 stops25h 04m

Lambert-St Louis

Tue 12/8

11:00 am-12:23 am

1 stop11h 23m

$694

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Wed 7/8

1:25 am-6:42 pm

2 stops18h 17m

Lambert-St Louis

Fri 7/24

8:55 am-12:15 am

1 stop14h 20m

$697
Quickest round-trip

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Fri 11/20

1:30 am-9:42 am

1 stop10h 12m

Lambert-St Louis

Tue 12/8

11:00 am-12:23 am

1 stop11h 23m

$715

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Fri 11/20

1:30 am-2:18 pm

2 stops14h 48m

Lambert-St Louis

Tue 12/8

6:15 am-12:23 am

1 stop16h 08m

$717

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Fri 7/10

7:00 am-10:54 pm

1 stop16h 54m

Lambert-St Louis

Fri 7/24

6:14 am-10:33 pm

2 stops15h 19m

$759

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Thu 7/9

12:30 am-8:40 pm

1 stop21h 10m

Lambert-St Louis

Fri 7/24

11:10 am-11:23 pm

1 stop11h 13m

$764

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Sat 8/22

2:00 am-11:16 am

1 stop10h 16m

Lambert-St Louis

Sat 8/29

7:00 am-12:50 am

1 stop16h 50m

$794

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Sat 8/22

12:30 am-10:10 am

1 stop10h 40m

Lambert-St Louis

Sat 8/29

8:00 am-11:23 pm

2 stops14h 23m

$798

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Trinidad and Tobago to St. Louis flight deals and tips

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

Fastest flight time

16h 29m

Direct flights

None
The fastest flight from Trinidad and Tobago to St. Louis takes 16h 29m
There are no direct flights from Trinidad and Tobago to St. Louis. There are no popular flight routes from Trinidad and Tobago to St. Louis.
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Frequently asked questions about flying from Trinidad and Tobago to St. Louis

  • When did momondo last update prices for flights from Trinidad and Tobago to Lambert-St Louis Airport?

    Prices for flights from Trinidad and Tobago to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Trinidad and Tobago to Lambert-St Louis Airport?

  • How old do you have to be to fly from Trinidad and Tobago to Lambert-St Louis Airport?

    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 Trinidad and Tobago to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Trinidad and Tobago to St. Louis

Compare and see reviews for airlines that fly from Trinidad and Tobago to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $640Free CancellationRating
7.4
9,865 reviews
Search United Airlines flights

Frequently asked questions about flying from Trinidad and Tobago to St. Louis

  • How do I get Price Alerts for flights from Trinidad and Tobago to St. Louis?

    Search flight deals from Trinidad and Tobago to St. Louis. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Trinidad and Tobago to St. Louis with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Alton
Wentzville
Farmington
Fenton
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Trinidad and Tobago to St. Louis?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Trinidad and Tobago to St. Louis for you.

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

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

How can momondo help me find flights from Trinidad and Tobago to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Trinidad and Tobago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Trinidad and Tobago to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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