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STL - POS

Find cheap flights from St. Louis to Port of Spain from $657

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 6/15. 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
0 bags
Sat 6/8
Sat 6/15

Search 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
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
6:15 am - 11:23 pmSTL-POS
16h 08m1 stop
12:30 am - 9:53 amPOS-STL
10h 23m1 stop
$657United Airlines
Find Deal
Sat, Jun 15 - Fri, Jun 21
8:55 am - 11:23 pmSTL-POS
13h 28m1 stop
12:30 am - 2:16 pmPOS-STL
14h 46m2 stops
$661United Airlines
Find Deal
Sat, Jun 15 - Fri, Jun 21
7:00 am - 2:20 pmSTL-POS
30h 20m2 stops
7:00 am - 4:47 pmPOS-STL
34h 47m2 stops
$733American Airlines
Find Deal
Sat, Jun 15 - Sat, Jun 22
5:00 am - 2:20 pmSTL-POS
8h 20m1 stop
3:20 pm - 11:26 pmPOS-STL
9h 06m1 stop
$997American Airlines
Find Deal
Sat, Jun 15 - Sat, Jun 22
5:00 am - 2:20 pmSTL-POS
8h 20m1 stop
7:00 am - 6:43 pmPOS-STL
12h 43m2 stops
$1,001American Airlines
Find Deal
Sat, Jun 15 - Sat, Jun 22

Flights from St. Louis to Port of Spain - Travel Insights & Trends

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 flights from St. Louis to Port of Spain clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from St. Louis to Port of Spain, look for departures on Fridays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Port of Spain, Monday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from St. Louis to Port of Spain?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Port of Spain, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Port of Spain is May, where tickets cost $424 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $1,106 and $941 respectively.

Good to know

Low season

June

High season

January

Cheapest flight

$657
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly with an average 1% increase in price.
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 $657 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?

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

  • Which is the best airline for flights from St. Louis to Port of Spain, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Port of Spain are United Airlines and American Airlines. With an average price for the route of $774 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $765 and an overall rating of 7.3.

  • 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.

See more FAQs

Top airlines 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.
7.4
United AirlinesOverall score based on 11043 reviews
8.1Crew
7.2Comfort
6.7Food
7.7Boarding
7.1Entertainment
Airline reviews

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

4.0 OkayAnonymous, May 2024EWR - CDG
Read more about United Airlines reviews

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

St. Louis - Port of Spain Flights

Departure:

St. Louis (undefined)United States

Destination:

Port of Spain (POS)Trinidad and Tobago

Return flight deals:

Port of Spain - St. Louis

Cabin classes: