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Port of Spain

$563+ Cheap flights from St. Louis (STL) to Port of Spain (POS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — POS
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Find flight deals from St. Louis to Port of Spain

Cheapest flights from St. Louis to Port of Spain
Explore the most affordable flight options available from St. Louis to Port of Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Mytrip deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:05 pmSTL - POS
1 stop31h 05mMultiple Airlines
Sat 11/159:10 amPOS - STL
3 stops34h 06mMultiple Airlines
Deal found 10/18$563
This Booking.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:05 pmSTL - POS
1 stop31h 05mAir Canada
Fri 11/142:15 amPOS - STL
2 stops21h 39mAir Canada
Deal found 10/18$652
This American Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:15 amSTL - POS
1 stop8h 15mAmerican Airlines
Wed 11/194:30 pmPOS - STL
2 stops24h 59mAmerican Airlines
Deal found 10/19$673
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:15 amSTL - POS
1 stop16h 08mUnited Airlines
Fri 11/141:30 amPOS - STL
1 stop11h 09mUnited Airlines
Deal found 10/18$734
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/811:20 amSTL - POS
1 stop11h 03mUnited Airlines
Tue 11/181:30 amPOS - STL
1 stop16h 20mUnited Airlines
Deal found 10/19$779
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:20 amSTL - POS
1 stop11h 03mUnited Airlines
Sun 11/21:30 amPOS - STL
1 stop11h 09mUnited Airlines
Deal found 10/20$784
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:23 amSTL - POS
1 stop8h 02mAmerican Airlines
Mon 11/37:19 amPOS - STL
1 stop17h 08mAmerican Airlines
Deal found 10/20$804

Cheap flight deals from St. Louis to Port of Spain

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Port of Spain (POS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$563
(Mytrip)
Provider with most accurate pricing for Lambert-St Louis-Port of Spain Piarco Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Port of Spain Piarco Intl flights.
Search Deals
From Lambert-St Louis to Port of Spain Piarco Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Port of Spain 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, Cheapflights users made 2,558,603 searches. Data last updated October 20, 2025.
Use the filters below to find and compare flights from St. Louis to Port of Spain that are best for you.

Fly from

St. Louis

Fly to

Port of Spain

Route

Depart

Return

Price

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Wed 11/12

4:05 pm-1:10 am

1 stop31h 05m

Port of Spain Piarco Intl

Sat 11/15

9:10 am-5:16 pm

3 stops34h 06m

$563

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Fri 1/16

5:15 am-10:48 pm

1 stop15h 33m

Port of Spain Piarco Intl

Sun 1/18

4:30 pm-9:24 am

2 stops18h 54m

$588

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Fri 1/16

6:00 am-12:23 am

1 stop16h 23m

Port of Spain Piarco Intl

Sat 1/17

1:30 am-9:22 am

1 stop9h 52m

$599

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Tue 2/3

6:52 am-10:48 pm

2 stops13h 56m

Port of Spain Piarco Intl

Sat 2/7

6:30 am-11:26 pm

2 stops18h 56m

$623

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Mon 2/16

6:00 am-12:23 am

1 stop16h 23m

Port of Spain Piarco Intl

Thu 2/26

1:30 am-9:23 am

1 stop9h 53m

$669

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Sun 2/15

11:39 am-1:05 am

1 stop11h 26m

Port of Spain Piarco Intl

Thu 2/26

1:30 am-3:38 pm

1 stop16h 08m

$669

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Tue 2/17

11:25 am-1:05 am

2 stops11h 40m

Port of Spain Piarco Intl

Tue 2/24

2:20 am-10:59 pm

2 stops22h 39m

$673

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Mon 2/16

7:41 am-1:05 am

2 stops15h 24m

Port of Spain Piarco Intl

Mon 2/23

1:30 am-9:23 am

1 stop9h 53m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Compare providers for flights from St. Louis to Port of Spain

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Port of Spain in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Port of Spain flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Port of Spain flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Port of Spain flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Port of Spain flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Port of Spain flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Port of Spain

Have a flexible travel schedule? Discover the best time to fly to Port of Spain from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Port of Spain

Get insights into the airlines that provide service to Port of Spain. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Port of Spain. Reviews last updated October 20, 2025.
Read through reviews of airlines operating flights from St. Louis to Port of Spain, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,024 reviews

Boarding

7.5

Food

6.4

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,024 reviews
American Airlines
7.2
Good
11,024 reviews

Boarding

7.5

Food

6.4

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Port of Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Port of Spain?

    Airlines like American Airlines and United Airlines fly from St. Louis to Port of Spain in about 15h 33m. The time it takes to get you to your destination can typically vary by up to 50m. St. Louis and Port of Spain are separated by a distance of 2641 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from St. Louis to Port of Spain round-trip?

    Our cheapest airline available from St. Louis to Port of Spain is American Airlines. Our recent data shows that you can find tickets from as low as $558 on this airline.

  • Can I find deals for flights from St. Louis to Port of Spain that include hotel bookings?

    Yes. In addition to deals on St. Louis to Port of Spain flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Port of Spain?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Port of Spain.

  • Can I find deals for business class flights from St. Louis to Port of Spain?

    Yes. Cheapflights offers flight deals from St. Louis to Port of Spain by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for St. Louis to Port of Spain

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Port of Spain flights

Top airline flying from St. Louis to Port of Spain

Discover the top airline that operate flights from St. Louis to Port of Spain. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$558Average$606FlexibilityNo cancel feeOn-time71%

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