STL - POS

$1,669 Find Cheap Flights from St. Louis to Port of Spain

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Port of Spain departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Port of Spain

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Port of Spain, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Port of Spain, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,669
United Airlines
Wed 2/11Tue 2/17
STL - POS • 1 stop
Cheapest one-way
Multiple Airlines
Thu 12/18
STL - POS • multi-stop
Top airlines
United Airlines
Cheapest • from $1,669 (round-trip)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Port of Spain!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Port of Spain (STL-POS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Port of Spain that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Port of Spain

Wed, Feb 11 - Tue, Feb 17
United Airlines Logo
6:00 am - 12:23 am
STL
-
POS
16h 23m1 stop
United Airlines Logo
1:30 am - 3:38 pm
POS
-
STL
16h 08m1 stop
$1,669United Airlines
Wed, Feb 11 - Wed, Feb 18
American Airlines Logo
6:02 pm - 4:58 pm
STL
-
POS
20h 56m1 stop
American Airlines Logo
4:40 pm - 10:59 am
POS
-
STL
20h 19m2 stops
$1,780American Airlines
Wed, Feb 11 - Wed, Feb 18
American Airlines Logo
5:04 pm - 3:39 pm
STL
-
POS
20h 35m2 stops
American Airlines Logo
4:40 pm - 10:59 am
POS
-
STL
20h 19m2 stops
$1,846American Airlines
Wed, Feb 11 - Wed, Feb 18
American Airlines Logo
6:00 am - 10:48 pm
STL
-
POS
14h 48m2 stops
American Airlines Logo
4:40 pm - 10:59 am
POS
-
STL
20h 19m2 stops
$1,891American Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Port of Spain flights

Get data-powered insights and trends into flights from St. Louis to Port of Spain to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Port of Spain?

The average price of all round-trip flights from St. Louis to Port of Spain clicked on KAYAK for each day over the last 12 months.

For St. Louis to Port of Spain, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from Port of Spain back to St. Louis, the best deals are generally found on Thursday, with Friday being the most expensive.

Find deals

Good to know

Cheapest flight$1,669
Flight from St. Louis to Port of Spain

When to book flights from St. Louis to Port of Spain

Are your dates flexible? Find out the best times to travel from St. Louis to Port of Spain based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Port of Spain

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

    In the last 3 days, the lowest price for a flight from St. Louis to Port of Spain was $1,669 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Port of Spain?

    Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Port of Spain.

  • Which airports will I be using when flying from St. Louis to Port of Spain?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Port of Spain, also known as Port of Spain Piarco Intl.

  • Which aircraft models fly most regularly from St. Louis to Port of Spain?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Port of Spain?

    oneworld is the only airline alliance operating flights between St. Louis and Port of Spain.

  • How does KAYAK find such low prices on flights from St. Louis to Port of Spain?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Port of Spain.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Port of Spain?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Port of Spain from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Port of Spain?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Port of Spain with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and POS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Port of Spain?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Port of Spain from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Port of Spain

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Port of Spain. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Port of Spain? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11055 reviews
7.2Comfort
6.9Entertainment
7.5Boarding
8.0Crew
6.5Food
Airline reviews

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

6.0 GoodRush, Dec 2025
EWN - CLT
Read more American Airlines reviews

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

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

Information on your arrival and departure airports

St. Louis (STL)
Port of Spain (POS)