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Cheap flights from Trinidad to St. Louis from $341

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trinidad to St. Louis departing on 6/22. 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 to St. Louis

Cheap round-trip flights

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
11:10 am - 11:23 pm
STL
-
POS
11h 13m
1 stop
$715United Airlines
Wed, Jul 8 - Fri, Jul 24
United Airlines Logo
12:30 am - 10:07 am
POS
-
STL
10h 37m
1 stop
United Airlines Logo
6:00 am - 12:50 am
STL
-
POS
17h 50m
2 stops
$718United Airlines
Wed, Jul 8 - Fri, Jul 24
American Airlines Logo
3:18 pm - 8:33 am
POS
-
STL
18h 15m
2 stops
American Airlines Logo
6:14 am - 10:33 pm
STL
-
POS
15h 19m
2 stops
$747American Airlines
Thu, Jul 9 - Fri, Jul 24
United Airlines Logo
12:30 am - 10:10 am
POS
-
STL
10h 40m
1 stop
United Airlines Logo
7:00 am - 12:50 am
STL
-
POS
16h 50m
1 stop
$793United Airlines
Sat, Aug 22 - Sat, Aug 29
United Airlines Logo
12:30 am - 10:00 pm
POS
-
STL
22h 30m
2 stops
United Airlines Logo
7:00 am - 12:50 am
STL
-
POS
16h 50m
1 stop
$798United Airlines
Sat, Aug 22 - Sat, Aug 29
Multiple Airlines Logo
1:25 am - 6:42 pm
POS
-
STL
18h 17m
3 stops
Multiple Airlines Logo
8:55 am - 2:05 am
STL
-
POS
16h 10m
2 stops
$1,497Multiple Airlines
Wed, Jul 8 - Fri, Jul 24

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United Airlines flights from Trinidad to St. Louis

Our best United Airlines deals on Trinidad to St. Louis flight tickets
United Airlines
Jul 8
POS12:30 amPort of Spain Piarco Intl
10h 37m
1 stop
STL10:07 amLambert-St Louis
Jul 24
STL11:10 amLambert-St Louis
11h 13m
1 stop
POS11:23 pmPort of Spain Piarco Intl
$715
United Airlines
Jul 8
POS12:30 amPort of Spain Piarco Intl
10h 37m
1 stop
STL10:07 amLambert-St Louis
Jul 24
STL6:00 amLambert-St Louis
17h 50m
2 stops
POS12:50 amPort of Spain Piarco Intl
$718
United Airlines
Aug 22
POS12:30 amPort of Spain Piarco Intl
10h 40m
1 stop
STL10:10 amLambert-St Louis
Aug 29
STL7:00 amLambert-St Louis
16h 50m
1 stop
POS12:50 amPort of Spain Piarco Intl
$793

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 June 13, 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
Quickest round-trip

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Wed 7/8

12:30 am-10:07 am

1 stop10h 37m

Lambert-St Louis

Fri 7/24

11:10 am-11:23 pm

1 stop11h 13m

$715

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Wed 7/8

12:30 am-10:07 am

1 stop10h 37m

Lambert-St Louis

Fri 7/24

6:00 am-12:50 am

2 stops17h 50m

$718

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Thu 7/9

3:18 pm-8:33 am

2 stops18h 15m

Lambert-St Louis

Fri 7/24

6:14 am-10:33 pm

2 stops15h 19m

$747

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

7:00 am-12:50 am

1 stop16h 50m

$793

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Sat 8/22

12:30 am-10:00 pm

2 stops22h 30m

Lambert-St Louis

Sat 8/29

7:00 am-12:50 am

1 stop16h 50m

$798

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Wed 7/8

1:25 am-6:42 pm

3 stops18h 17m

Lambert-St Louis

Fri 7/24

8:55 am-2:05 am

2 stops16h 10m

$1,497
Cheapest one-way
Quickest one-way

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Mon 6/22

1:25 am-12:21 pm

1 stop11h 56m

$341

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Mon 6/22

1:25 am-8:25 pm

2 stops20h 00m

$344

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Tue 6/23

9:10 am-11:49 pm

3 stops39h 39m

$585

Port of SpainSt. Louis

POS - STL

POSSTL

Port of Spain Piarco Intl

Tue 6/23

9:10 am-6:18 pm

3 stops34h 08m

$717

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

20h 20m

Direct flights

None
The fastest flight from Trinidad to St. Louis takes 20h 20m
There are no direct flights from Trinidad to St. Louis. There are no popular flight routes from Trinidad to St. Louis.
Search flight deals

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 $640Free CancellationRating
7.4
9,810 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
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Fenton
Clayton
Farmington
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

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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Mon 7/13
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