$159 Cheap Flights from Castries (SLU) to Port of Spain (POS)

View $159 flight on Sun, Nov 2, 2025Opens in a new window

Popular airlines from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)

Cheap Flights from Castries to Port of Spain (SLU-POS)

Prices were available within the past 7 days and start at $159 for one-way flights and $310 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Caribbean Airlines
Fri, Oct 17 - Mon, Oct 20
SLU
Castries
POS
Trinidad
$310 Roundtrip, found 3 hours ago
$310
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Fri, Oct 17 from Castries to Trinidad, returning Mon, Oct 20, priced at $310 found 3 hours ago
Caribbean Airlines
Wed, Oct 8 - Fri, Oct 10
SLU
Castries
POS
Trinidad
$321 Roundtrip, found 3 hours ago
$321
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Wed, Oct 8 from Castries to Trinidad, returning Fri, Oct 10, priced at $321 found 3 hours ago
Caribbean Airlines
Sun, Jan 4 - Mon, Jan 19
SLU
Castries
POS
Trinidad
$323 Roundtrip, found 1 hour ago
$323
Roundtrip
found 1 hour ago
Select Caribbean Airlines flight, departing Sun, Jan 4 from Castries to Trinidad, returning Mon, Jan 19, priced at $323 found 1 hour ago
Caribbean Airlines
Thu, Dec 4 - Mon, Dec 8
SLU
Castries
POS
Trinidad
$331 Roundtrip, found 15 hours ago
$331
Roundtrip
found 15 hours ago
Select Caribbean Airlines flight, departing Thu, Dec 4 from Castries to Trinidad, returning Mon, Dec 8, priced at $331 found 15 hours ago
Caribbean Airlines
Fri, Oct 31 - Mon, Nov 3
SLU
Castries
POS
Trinidad
$332 Roundtrip, found 3 hours ago
$332
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Fri, Oct 31 from Castries to Trinidad, returning Mon, Nov 3, priced at $332 found 3 hours ago
Caribbean Airlines
Fri, Oct 31 - Mon, Nov 3
SLU
Castries
POS
Trinidad
$342 Roundtrip, found 3 hours ago
$342
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Fri, Oct 31 from Castries to Trinidad, returning Mon, Nov 3, priced at $342 found 3 hours ago
Caribbean Airlines
Mon, Oct 6 - Wed, Oct 8
SLU
Castries
POS
Trinidad
$343 Roundtrip, found 3 hours ago
$343
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Mon, Oct 6 from Castries to Trinidad, returning Wed, Oct 8, priced at $343 found 3 hours ago
Caribbean Airlines
Thu, Mar 26 - Sun, Mar 29
SLU
Castries
POS
Trinidad
$343 Roundtrip, found 3 days ago
$343
Roundtrip
found 3 days ago
Select Caribbean Airlines flight, departing Thu, Mar 26 from Castries to Trinidad, returning Sun, Mar 29, priced at $343 found 3 days ago
Caribbean Airlines
Sat, Sep 20 - Sat, Oct 4
SLU
Castries
POS
Trinidad
$348 Roundtrip, found 9 hours ago
$348
Roundtrip
found 9 hours ago
Select Caribbean Airlines flight, departing Sat, Sep 20 from Castries to Trinidad, returning Sat, Oct 4, priced at $348 found 9 hours ago
Hahn Air Technologies
Sat, Nov 15 - Wed, Nov 19
SLU
Castries
POS
Trinidad
$602 Roundtrip, found 6 days ago
$602
Roundtrip
found 6 days ago
Select Hahn Air Technologies flight, departing Sat, Nov 15 from Castries to Trinidad, returning Wed, Nov 19, priced at $602 found 6 days ago

Find the cheapest month to fly from Castries (SLU) to Piarco (POS)

November is typically the cheapest month to fly

From $308 - $657 per traveler.
Flights from Castries (SLU) to Port of Spain (POS)
Origin airport
George F. L. Charles
Destination airport
Piarco Intl.
Airlines serving
Caribbean Airlines, Hahn Air Technologies
Roundtrip price
$310
Distance
237 mi
Average flight time
1 hour 5 mins

Castries to Port of Spain Flights

The cheapest times to fly from Castries to Port of Spain

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Castries to Port of Spain are during the month of October. You can find some of the cheapest flights from Castries to Port of Spain with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Castries to Port of Spain

Sunday is one of the best days to book for cheap flights from Castries to Port of Spain: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Castries to Port of Spain

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Castries to Port of Spain in 2025. You can also book with separate airlines for your outbound and return journeys, from $159 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Castries to Port of Spain flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Castries to Port of Spain airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS) cost?
Secure a cheap one-way flight from $159 or cheap return flight from $310 from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
The cheapest month to fly from SLU to POS is October, when demand is low. Off-peak months are generally when airlines offer better prices between these airports.
Which airlines fly direct from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
When departing from George F. L. Charles Airport (SLU), you can take a nonstop flight to Piarco Intl. Airport (POS) with Caribbean Airlines.
What is the cheapest airline that flies from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from SLU to POS. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
On average, George F. L. Charles Airport (SLU) only offers 1 nonstop flight to Piarco Intl. Airport (POS) per day. To explore more options, try our easy-to-use filters. Enter your details, then select "1 Stop" or "2+ Stops" to discover flights with layovers.
What are the most popular departure times for flights from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
More passengers fly between SLU and POS at 5 PM than at any other point in the day. Rather go when it's quieter? Travel outside of rush hours and it's possible you'll save on your fare as well.
What day of the week has the most flights from SLU to POS?
If you jet off on a Sunday, you'll get the widest range of choices for flights from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS).
What is the earliest flight from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
The earliest flight out of George F. L. Charles Airport (SLU) is at around 5:00AM UTC-4. Catch this flight and you'll reach Piarco Intl. Airport (POS) at approximately 6:05AM UTC-4. The total time in the air is 1h 5m.
How long does it take to fly from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
Flights from SLU to POS have an average travel time of 1 hour and 5 minutes. The total distance between these two airports is 240 mi.
What is the best time to fly from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
To reach Piarco Intl. Airport (POS) on time, book a flight that leaves from George F. L. Charles Airport (SLU) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Port of Spain from George F. L. Charles Airport (SLU)?
Check out your flight options from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS). This is the only airport in Port of Spain you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS) last-minute?
Waiting until right before your break to book your flight from SLU to POS generally means paying more. While you may find some last-minute offers, there's no guarantee. Be flexible with your itinerary for a better chance of scoring a bargain.
Is it cheaper to book a SLU to POS flight and hotel package?
Securing a SLU to POS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our extensive range of stays and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from George F. L. Charles Airport (SLU) to Piarco Intl. Airport (POS)?
In most instances, you can reschedule or cancel your SLU to POS flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further details, visit our Customer Service portal.

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*Available to One Key members.