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Port of Spain

$653+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — POS
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$653
(United Airlines)
Provider with most accurate pricing for Lambert-St Louis-Port of Spain Piarco Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Port of Spain Piarco Intl flights.
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From Lambert-St Louis to Port of Spain Piarco Intl
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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 April 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/16. 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.
Mon 6/168:25 amSTL - POS
1 stop13h 58mUnited Airlines
Wed 6/2512:30 amPOS - STL
2 stops23h 15mUnited Airlines
Deal found 4/16$653
This American Airlines deal was found by Cheapflights users on 4/17. 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 4/307:03 pmSTL - POS
2 stops17h 53mAmerican Airlines
Wed 5/73:05 pmPOS - STL
2 stops19h 49mAmerican Airlines
Deal found 4/17$808

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 April 17, 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

Mon 6/16

8:25 am-11:23 pm

1 stop13h 58m

Port of Spain Piarco Intl

Wed 6/25

12:30 am-10:45 pm

2 stops23h 15m

$653

St. LouisPort of Spain

STL - POS

STLPOS

Lambert-St Louis

Wed 4/30

7:03 pm-1:56 pm

2 stops17h 53m

Port of Spain Piarco Intl

Wed 5/7

3:05 pm-9:54 am

2 stops19h 49m

$808

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Port of Spain flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Port of Spain

Rainfall in Port of Spain by month

Plan your trip to Port of Spain by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Port of Spain ranges from 1.2 - 9.8 inches per month. June is typically the wettest month, when rainfall can reach 9.8 in. March is typically the driest time to visit Port of Spain when rainfall is around 1.2 in.

Temperature in Port of Spain by month

Plan your trip to Port of Spain by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Port of Spain, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 April 17, 2025.
United Airlines
7.4
Good
8,667 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,667 reviews
United Airlines
7.4
Good
8,667 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,667 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • What are the cheapest airlines flying from St. Louis to Port of Spain round-trip?

    Our cheapest airline available from St. Louis to Port of Spain is United Airlines. Our recent data shows that you can find tickets from as low as $653 on this airline. An additional option worth looking into is American Airlines, starting at $808.

  • 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.

  • What is the cheapest month to book a flight from St. Louis to Port of Spain?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Port of Spain (average of $435). Flying from St. Louis to Port of Spain in December is currently the most expensive (average of $710). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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 2 airlines flying from St. Louis to Port of Spain

Discover the top 2 airlines 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$545Average$886FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$578Average$756FlexibilityNo cancel feeOn-time71%

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