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Cheap flights from St. Louis to Trinidad and Tobago from $630

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Trinidad and Tobago departing on 10/7. 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

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:35 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
13h 48m1 stop Houston George Bush Intcntl
United Airlines Logo
12:30 am - 2:10 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
14h 40m1 stop Houston George Bush Intcntl
$630United Airlines
Wed, Oct 7 - Tue, Oct 13
United Airlines Logo
9:04 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
13h 19m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
12:30 am - 2:17 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
14h 47m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$634United Airlines
Wed, Oct 7 - Tue, Oct 13
American Airlines Logo
5:00 am - 2:06 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
8h 06m1 stop Miami
American Airlines Logo
3:06 pm - 11:59 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
9h 53m1 stop Miami
$655American Airlines
Fri, Oct 2 - Sun, Oct 4
American Airlines Logo
5:00 am - 2:06 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
8h 06m1 stop Miami
American Airlines Logo
3:06 pm - 10:21 amPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
20h 15m2 stops Miami Washington, D.C. Reagan-National
$659American Airlines
Fri, Oct 2 - Sun, Oct 4
United Airlines Logo
10:27 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
11h 56m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
12:30 am - 3:43 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
16h 13m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$674United Airlines
Fri, Oct 2 - Sat, Oct 3
United Airlines Logo
9:23 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
13h 00m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
12:30 am - 10:59 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
23h 29m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$774United Airlines
Sat, Sep 19 - Sun, Sep 20
United Airlines Logo
8:00 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
14h 23m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
12:30 am - 10:30 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
23h 00m1 stop Houston George Bush Intcntl
$785United Airlines
Sat, Sep 19 - Sun, Sep 20
United Airlines Logo
8:35 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
13h 48m1 stop Houston George Bush Intcntl
United Airlines Logo
12:30 am - 10:30 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
23h 00m1 stop Houston George Bush Intcntl
$875United Airlines
Sat, Sep 19 - Sun, Sep 20
American Airlines Logo
4:57 pm - 3:25 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
20h 28m2 stops Dallas/Fort Worth Miami
American Airlines Logo
4:47 pm - 12:35 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
21h 48m2 stops Miami Chicago O'Hare Intl
$1,299American Airlines
Thu, Feb 4 - Sun, Feb 14
American Airlines Logo
6:09 pm - 3:25 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
19h 16m1 stop Miami
American Airlines Logo
4:47 pm - 12:35 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
21h 48m2 stops Miami Chicago O'Hare Intl
$1,322American Airlines
Thu, Feb 4 - Sun, Feb 14

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United Airlines flights from St. Louis to Trinidad and Tobago

Our best United Airlines deals on St. Louis to Trinidad and Tobago flight tickets
United Airlines
Oct 7
STL6:00 amLambert-St Louis
16h 23m
2 stops
POS11:23 pmPort of Spain Piarco Intl
Oct 13
POS12:30 amPort of Spain Piarco Intl
10h 40m
1 stop
STL10:10 amLambert-St Louis
$630
United Airlines
Oct 7
STL9:04 amLambert-St Louis
13h 19m
2 stops
POS11:23 pmPort of Spain Piarco Intl
Oct 13
POS12:30 amPort of Spain Piarco Intl
14h 47m
2 stops
STL2:17 pmLambert-St Louis
$634
United Airlines
Oct 2
STL10:27 amLambert-St Louis
11h 56m
2 stops
POS11:23 pmPort of Spain Piarco Intl
Oct 3
POS12:30 amPort of Spain Piarco Intl
16h 13m
2 stops
STL3:43 pmLambert-St Louis
$674

American Airlines flights from St. Louis to Trinidad and Tobago

Our best American Airlines deals on St. Louis to Trinidad and Tobago flight tickets
American Airlines
Oct 2
STL5:00 amLambert-St Louis
8h 06m
1 stop
POS2:06 pmPort of Spain Piarco Intl
Oct 4
POS3:06 pmPort of Spain Piarco Intl
9h 53m
1 stop
STL11:59 pmLambert-St Louis
$655
American Airlines
Oct 2
STL5:00 amLambert-St Louis
8h 06m
1 stop
POS2:06 pmPort of Spain Piarco Intl
Oct 4
POS3:06 pmPort of Spain Piarco Intl
20h 15m
2 stops
STL10:21 amLambert-St Louis
$659
American Airlines
Feb 4
STL4:57 pmLambert-St Louis
20h 28m
2 stops
POS3:25 pmPort of Spain Piarco Intl
Feb 14
POS4:47 pmPort of Spain Piarco Intl
21h 48m
2 stops
STL12:35 pmLambert-St Louis
$1,299

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Trinidad and Tobago 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 August 11, 2026.
Use the filters below to find and compare flights from St. Louis to Trinidad and Tobago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Wed 10/7

8:35 am-11:23 pm

1 stop13h 48m

Port of Spain Piarco Intl

Tue 10/13

12:30 am-2:10 pm

1 stop14h 40m

$630

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Wed 10/7

9:04 am-11:23 pm

2 stops13h 19m

Port of Spain Piarco Intl

Tue 10/13

12:30 am-2:17 pm

2 stops14h 47m

$634
Quickest round-trip

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Fri 10/2

5:00 am-2:06 pm

1 stop8h 06m

Port of Spain Piarco Intl

Sun 10/4

3:06 pm-11:59 pm

1 stop9h 53m

$655

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Fri 10/2

5:00 am-2:06 pm

1 stop8h 06m

Port of Spain Piarco Intl

Sun 10/4

3:06 pm-10:21 am

2 stops20h 15m

$659

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Fri 10/2

10:27 am-11:23 pm

2 stops11h 56m

Port of Spain Piarco Intl

Sat 10/3

12:30 am-3:43 pm

2 stops16h 13m

$674

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Sat 9/19

9:23 am-11:23 pm

2 stops13h 00m

Port of Spain Piarco Intl

Sun 9/20

12:30 am-10:59 pm

2 stops23h 29m

$774

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Sat 9/19

8:00 am-11:23 pm

2 stops14h 23m

Port of Spain Piarco Intl

Sun 9/20

12:30 am-10:30 pm

1 stop23h 00m

$785

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Sat 9/19

8:35 am-11:23 pm

1 stop13h 48m

Port of Spain Piarco Intl

Sun 9/20

12:30 am-10:30 pm

1 stop23h 00m

$875

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Thu 2/4

4:57 pm-3:25 pm

2 stops20h 28m

Port of Spain Piarco Intl

Sun 2/14

4:47 pm-12:35 pm

2 stops21h 48m

$1,299

St. LouisPort of Spain

STL Lambert-St Louis - POS Port of Spain Piarco Intl

STLPOS

Lambert-St Louis

Thu 2/4

6:09 pm-3:25 pm

1 stop19h 16m

Port of Spain Piarco Intl

Sun 2/14

4:47 pm-12:35 pm

2 stops21h 48m

$1,322

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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

Fastest flight time

20h 28m

Direct flights

None
The fastest flight from St. Louis to Trinidad and Tobago takes 20h 28m
There are no direct flights from St. Louis to Trinidad and Tobago. There are no popular flight routes from St. Louis to Trinidad and Tobago.
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Frequently asked questions about flying from St. Louis to Trinidad and Tobago

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

    Prices for flights from Lambert-St Louis Airport to Trinidad and Tobago were last updated today.

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

    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 Lambert-St Louis Airport to Trinidad and Tobago.

  • What documentation or ID do you need to fly to Trinidad and Tobago?

    The travel and health documents you'll need for your trip to Trinidad and Tobago 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 Trinidad and Tobago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

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

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

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • 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.

Why use momondo?

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

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 Trinidad and Tobago from St. Louis.

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

Yes. All flights to Trinidad and Tobago 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 Trinidad and Tobago?

Once you have performed a search for St. Louis to Trinidad and Tobago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for St. Louis to Trinidad and Tobago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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