STL - POS

$650 Find Cheap Flights from St. Louis to Port of Spain - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$650
Typical prices: $821-$879
United Airlines
Mon 10/22Sun 11/18
STL - POS • 1 stop
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Port of Spain. You'll need to take a connecting flight to reach the destination.
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Top layover airports
Toronto Pearson Intl (YYZ)
Cheapest • Avg $600 (round-trip)
Miami (MIA)
Shortest trip • 8h 17m (one-way)
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Flight Deals

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

 
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

Thu, Oct 22 - Wed, Nov 18
United Airlines Logo
6:15 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
16h 08m1 stop Houston George Bush Intcntl
United Airlines Logo
1:25 am - 10:02 amPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
10h 37m1 stop Houston George Bush Intcntl
$650United Airlines
Thu, Oct 22 - Wed, Nov 18
United Airlines Logo
8:00 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
14h 23m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
1:25 am - 2:13 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
14h 48m1 stop Houston George Bush Intcntl
$654United Airlines
Thu, Oct 22 - Sun, Oct 25
Air Canada Logo
12:10 pm - 12:15 amSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
35h 05m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
1:15 am - 3:23 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
15h 08m1 stop Toronto Pearson Intl
$666Air Canada
Thu, Oct 22 - Mon, Oct 26
American Airlines Logo
5:08 pm - 2:08 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
20h 00m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
3:08 pm - 2:38 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
24h 30m2 stops Miami Philadelphia
$674American Airlines
Thu, Oct 22 - Mon, Oct 26
American Airlines Logo
6:07 pm - 2:08 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
19h 01m1 stop Miami
American Airlines Logo
3:08 pm - 12:35 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
22h 27m2 stops Miami Chicago O'Hare Intl
$687American Airlines
Thu, Oct 22 - Sun, Oct 25
United Airlines Logo
6:15 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
16h 08m1 stop Houston George Bush Intcntl
United Airlines Logo
12:25 am - 10:26 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
23h 01m1 stop Houston George Bush Intcntl
$780United Airlines
Thu, Oct 22 - Thu, Nov 19
Multiple Airlines Logo
12:10 pm - 12:15 amSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
35h 05m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Multiple Airlines Logo
9:00 am - 3:26 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
32h 26m3 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,043Multiple Airlines
Mon, Sep 28 - Wed, Sep 30
United Airlines Logo
6:15 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
16h 08m1 stop Houston George Bush Intcntl
United Airlines Logo
12:30 am - 2:10 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
14h 40m1 stop Houston George Bush Intcntl
$1,070United Airlines
Mon, Sep 28 - Wed, Sep 30
United Airlines Logo
11:10 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
11h 13m1 stop Houston George Bush Intcntl
United Airlines Logo
12:30 am - 7:41 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
20h 11m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$1,074United Airlines
Mon, Sep 28 - Wed, Sep 30
United Airlines Logo
6:15 am - 11:23 pmSTL  Lambert-St Louis-POS Port of Spain Piarco Intl
16h 08m1 stop Houston George Bush Intcntl
United Airlines Logo
12:30 am - 2:10 pmPOS  Port of Spain Piarco Intl-STL Lambert-St Louis
14h 40m1 stop Houston George Bush Intcntl
$1,106United Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Port of Spain flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Port of Spain with more confidence.

How much is a round-trip flight from St. Louis to Port of Spain?

Round-trip flights from St. Louis to Port of Spain start at $650. Prices are below average for this route right now, with typical round-trip fares ranging from $821 to $879. The lowest price found in the past 5 days was $650 on United Airlines.

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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

Your St. Louis to Port of Spain flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from St. Louis to Port of Spain?

    Flights from St. Louis to Port of Spain usually depart from Lambert-St Louis (STL) and arrive at Port of Spain Piarco Intl (POS).

  • What cabin classes can I book on flights from St. Louis to Port of Spain?

    Two cabin classes are available on flights from St. Louis to Port of Spain:

    • Economy Class
    • First Class

  • Which airports do connecting flights from St. Louis to Port of Spain pass through?

    One-stop flights from St. Louis to Port of Spain most commonly connect through:

    • Houston George Bush Intcntl (IAH) - 60% of one-stop connections
    • Miami (MIA) - 20% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 20% of one-stop connections

    Houston George Bush Intcntl (IAH) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from St. Louis to Port of Spain?

    Yes. Being flexible with your travel dates can save you up to 32% on the St. Louis to Port of Spain route. Monday is the cheapest departure day at $600 round-trip on average, while Sunday is the most expensive at $879, a difference of $279. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from St. Louis to Port of Spain?

    A nonstop flight from St. Louis to Port of Spain takes 0h 00m, covering 2,641 miles.

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

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from St. Louis to Port of Spain changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $650 to $4,577. That means the highest observed fare was about 7x higher than the lowest one.

  • How much time can I save by choosing a different layover airport from St. Louis to Port of Spain?

    Flying via Miami (MIA) gives the shortest average 1-stop total travel time at 8h 17m, compared with 10h 27m via Toronto Pearson Intl (YYZ) and 11h 33m via Houston George Bush Intcntl (IAH).

  • What is the time difference between St. Louis and Port of Spain?

    Port of Spain is 1 hour ahead of St. Louis (Atlantic Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Port of Spain Piarco Intl Airport (POS)?

    Port of Spain Piarco Intl Airport (POS) hosts 5 major car rental companies, with daily rates starting from around $20 for economy cars. Top options include:
    • Classique Car Rentals
    • Ace
    • Hertz
    • Alamo
    • Europcar

Your guide to booking St. Louis to Port of Spain flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Sunday. On this route, Monday flights average $600 - about $279 less than Sunday (32% savings) based on the last 12 months.

More options for your flight from St. Louis to Port of Spain

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