$593 Find Cheap Flights from Port of Spain to Missouri

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Port of Spain to Missouri departing on 4/9. 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 Missouri

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

Book Cheap Port of Spain to Missouri Plane Tickets

 
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 Missouri 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 Port of Spain to Missouri

to, huhti 9 - la, huhti 25
Air Canada Logo
1:20 am - 3:25 pm
POS
-
STL
15h 05m
1 stop
Air Canada Logo
4:05 pm - 12:20 am
STL
-
POS
31h 15m
1 stop
$593Air Canada
ke, huhti 15 - su, huhti 26
United Airlines Logo
12:30 am - 4:08 pm
POS
-
STL
16h 38m
1 stop
United Airlines Logo
6:00 am - 11:23 pm
STL
-
POS
16h 23m
1 stop
$713United Airlines
ke, Touko 27 - ke, kesä 10
American Airlines Logo
7:00 am - 10:58 pm
POS
-
STL
16h 58m
1 stop
American Airlines Logo
5:15 am - 11:01 pm
STL
-
POS
16h 46m
1 stop
$715American Airlines
ke, Touko 27 - ke, kesä 10
American Airlines Logo
7:00 am - 11:59 pm
POS
-
STL
17h 59m
2 stops
American Airlines Logo
11:12 am - 11:01 pm
STL
-
POS
10h 49m
1 stop
$719American Airlines
to, elo 20 - la, syys 12
United Airlines Logo
12:30 am - 9:22 pm
POS
-
STL
21h 52m
2 stops
United Airlines Logo
6:14 am - 11:23 pm
STL
-
POS
16h 09m
1 stop
$736United Airlines
ke, huhti 15 - la, huhti 25
United Airlines Logo
12:30 am - 9:25 am
POS
-
STL
9h 55m
1 stop
United Airlines Logo
10:09 am - 11:23 pm
STL
-
POS
12h 14m
1 stop
$737United Airlines
ke, huhti 15 - la, huhti 25
United Airlines Logo
12:30 am - 8:25 am
POS
-
STL
32h 55m
2 stops
United Airlines Logo
7:45 am - 11:23 pm
STL
-
POS
14h 38m
2 stops
$738United Airlines
pe, Touko 1 - la, Touko 9
United Airlines Logo
12:30 am - 6:16 pm
POS
-
STL
18h 46m
2 stops
United Airlines Logo
6:30 am - 11:23 pm
STL
-
POS
15h 53m
2 stops
$759United Airlines
ti, huhti 7 - ke, huhti 22
United Airlines Logo
12:30 am - 9:25 am
POS
-
STL
9h 55m
1 stop
United Airlines Logo
11:15 am - 11:23 pm
STL
-
POS
35h 08m
2 stops
$764United Airlines
to, huhti 9 - su, huhti 26
United Airlines Logo
12:30 am - 9:25 am
POS
-
STL
9h 55m
1 stop
United Airlines Logo
7:45 am - 11:23 pm
STL
-
POS
14h 38m
2 stops
$765United Airlines
Booking Insights

KAYAK's insights & trends for Port of Spain to Missouri flights

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

Which airlines provide the cheapest flights from Port of Spain to Missouri?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Port of Spain to Missouri were found on Air Canada ($593) and American Airlines ($715).

Find deals

Good to know

Cheapest flight$593
Flight from Port of Spain to St. Louis

FAQs - booking Missouri flights

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

    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 Missouri.

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

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

    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 from Port of Spain to Missouri with an airline and back with another airline.

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

    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 from Port of Spain to Missouri 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 Port of Spain to Missouri

 
See real verified KAYAK customer reviews for airlines flying from Port of Spain to Missouri. 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 Missouri? 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 9450 reviews
7.7Boarding
8.1Crew
6.6Food
7.1Entertainment
7.3Comfort
Airline reviews

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

8.0 ExcellentMatthew, Mar 2026
IAD - CMH
Read more United Airlines reviews

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Terrible experience! delay 2 time and say i dont have ticket

Everything you need to know for your flight from Port of Spain to Missouri

Information on your arrival and departure airports

Port of Spain (POS)