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Cheap flights from Trinidad to St. Louis from $692

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 to St. Louis departing on 5/27. 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

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Find the cheapest flights from Trinidad to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:00 am - 10:58 pm
POS
-
STL
16h 58m
1 stop
American Airlines Logo
5:15 am - 11:01 pm
STL
-
POS
16h 46m
1 stop
$692American Airlines
Wed, May 27 - Wed, Jun 10
American Airlines Logo
7:00 am - 9:29 pm
POS
-
STL
15h 29m
2 stops
American Airlines Logo
9:41 am - 11:01 pm
STL
-
POS
12h 20m
2 stops
$697American Airlines
Wed, May 27 - Wed, Jun 10
United Airlines Logo
12:30 am - 3:38 pm
POS
-
STL
16h 08m
2 stops
United Airlines Logo
5:00 am - 11:23 pm
STL
-
POS
17h 23m
2 stops
$712United Airlines
Thu, Aug 20 - Sat, Aug 29
United Airlines Logo
12:30 am - 5:49 pm
POS
-
STL
18h 19m
1 stop
United Airlines Logo
11:10 am - 11:23 pm
STL
-
POS
11h 13m
1 stop
$758United Airlines
Thu, Aug 20 - Sat, Aug 29
Multiple Airlines Logo
9:40 am - 8:07 pm
POS
-
STL
35h 27m
3 stops
Multiple Airlines Logo
12:10 pm - 12:15 am
STL
-
POS
35h 05m
2 stops
$1,561Multiple Airlines
Fri, Aug 21 - Sat, Aug 29
Multiple Airlines Logo
10:20 am - 2:02 pm
POS
-
STL
28h 42m
3 stops
Multiple Airlines Logo
12:10 pm - 7:40 pm
STL
-
POS
30h 30m
3 stops
$2,663Multiple Airlines
Fri, Aug 21 - Sat, Aug 29

American Airlines flights from Trinidad to St. Louis

Our best American Airlines deals on Trinidad to St. Louis flight tickets
American Airlines
May 27
POS7:00 amPort of Spain Piarco Intl
16h 58m
1 stop
STL10:58 pmLambert-St Louis
Jun 10
STL5:15 amLambert-St Louis
16h 46m
1 stop
POS11:01 pmPort of Spain Piarco Intl
$692
American Airlines
May 27
POS7:00 amPort of Spain Piarco Intl
15h 29m
2 stops
STL9:29 pmLambert-St Louis
Jun 10
STL9:41 amLambert-St Louis
12h 20m
2 stops
POS11:01 pmPort of Spain Piarco Intl
$697

United Airlines flights from Trinidad to St. Louis

Our best United Airlines deals on Trinidad to St. Louis flight tickets
United Airlines
Aug 20
POS12:30 amPort of Spain Piarco Intl
16h 08m
2 stops
STL3:38 pmLambert-St Louis
Aug 29
STL5:00 amLambert-St Louis
17h 23m
2 stops
POS11:23 pmPort of Spain Piarco Intl
$712
United Airlines
Aug 20
POS12:30 amPort of Spain Piarco Intl
18h 19m
1 stop
STL5:49 pmLambert-St Louis
Aug 29
STL11:10 amLambert-St Louis
11h 13m
1 stop
POS11:23 pmPort of Spain Piarco Intl
$758

momondo Fare Finder

 
Customize your flight search to find flights from Trinidad 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 April 5, 2026.
Use the filters below to find and compare flights from Trinidad 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

Wed 5/27

7:00 am-10:58 pm

1 stop16h 58m

Lambert-St Louis

Wed 6/10

5:15 am-11:01 pm

1 stop16h 46m

$692
Quickest round-trip

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Wed 5/27

7:00 am-9:29 pm

2 stops15h 29m

Lambert-St Louis

Wed 6/10

9:41 am-11:01 pm

2 stops12h 20m

$697

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Thu 8/20

12:30 am-3:38 pm

2 stops16h 08m

Lambert-St Louis

Sat 8/29

5:00 am-11:23 pm

2 stops17h 23m

$712

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Thu 8/20

12:30 am-5:49 pm

1 stop18h 19m

Lambert-St Louis

Sat 8/29

11:10 am-11:23 pm

1 stop11h 13m

$758

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Fri 8/21

9:40 am-8:07 pm

3 stops35h 27m

Lambert-St Louis

Sat 8/29

12:10 pm-12:15 am

2 stops35h 05m

$1,561

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Fri 8/21

10:20 am-2:02 pm

3 stops28h 42m

Lambert-St Louis

Sat 8/29

12:10 pm-7:40 pm

3 stops30h 30m

$2,663

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

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

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

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

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

Cheap Trinidad to St. Louis flight deals and tips

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

Fastest flight time

43h 19m

Direct flights

None
The fastest flight from Trinidad to St. Louis takes 43h 19m
There are no direct flights from Trinidad to St. Louis. There are no popular flight routes from Trinidad to St. Louis.
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Frequently asked questions about flying from Trinidad to St. Louis

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Trinidad to Lambert-St Louis Airport.

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

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Trinidad to St. Louis?

Best airlines flying from Trinidad to St. Louis

Compare and see reviews for airlines that fly from Trinidad to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $612Free CancellationRating
7.4
9,545 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Trinidad.

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

Yes. momondo allows you to filter the results for Trinidad to St. Louis flights to just show those with flexible booking policies.

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

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

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

Price alerts on flights to St. Louis from Trinidad are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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