POS - STL

$299 Find Cheap Flights from Port of Spain to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Port of Spain to St. Louis departing on 5/12. 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

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

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

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Port of Spain to St. Louis 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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Port of Spain to St. Louis.
Discover the best prices for you by selecting your travel dates on KAYAK.
Multiple Airlines Logo
POS-STL
2641 mimulti-stop
Multiple Airlines Logo
STL-POS
2641 mimulti-stop
Multiple Airlines
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KAYAK's insights & trends for Port of Spain to St. Louis flights

Get data-powered insights and trends into flights from Port of Spain to St. Louis 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 Port of Spain to St. Louis?

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

If your flying dates are flexible, you should consider flying to St. Louis on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Port of Spain to St. Louis. For your return ticket, we recommend flying on a Monday and avoiding Fridays for the best deals.

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Good to know

Cheapest flight$299
Flight from Port of Spain to St. Louis

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

Are your dates flexible? Find out the best times to travel from Port of Spain to St. Louis 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 Port of Spain to St. Louis

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

    In the last 3 days, the lowest price for a flight from Port of Spain to St. Louis was $299 for a one-way ticket.

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

    Yes

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

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

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

    Star Alliance, and oneworld are the airline alliances operating flights between Port of Spain and St. Louis, with oneworld being the most commonly used for this route.

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

    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 Port of Spain to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Port of Spain 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 Port of Spain to St. Louis?

    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 St. Louis with an airline and back to Port of Spain with another airline. Booking your flights between Port of Spain and STL 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 Port of Spain to St. Louis?

    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 St. Louis from Port of Spain up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Port of Spain to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Port of Spain to St. Louis. 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 Port of Spain to St. Louis? 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.
7.4
United AirlinesOverall score based on 8696 reviews
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

10.0 ExcellentMohammad Hassan Mirzai, May 2025HKG - SFO
Read more United Airlines reviews

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

A bit rush for transit. Food and entertainment are not available

So far so good but food and entertainment are not available for this flight

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

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

Information on your arrival and departure airports

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

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