$157 Cheap Flights from Port of Spain (POS) to Castries (SLU)

View $157 flight on Sat, Nov 1, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $157 for one-way flights and $320 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Caribbean Airlines
Sun, Nov 16 - Sat, Nov 22
POS
Trinidad
SLU
Castries
$320 Roundtrip, found 3 hours ago
$320
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Sun, Nov 16 from Trinidad to Castries, returning Sat, Nov 22, priced at $320 found 3 hours ago
Caribbean Airlines
Thu, Dec 11 - Sun, Dec 14
POS
Trinidad
SLU
Castries
$332 Roundtrip, found 2 hours ago
$332
Roundtrip
found 2 hours ago
Select Caribbean Airlines flight, departing Thu, Dec 11 from Trinidad to Castries, returning Sun, Dec 14, priced at $332 found 2 hours ago
Caribbean Airlines
Mon, Jan 5 - Sat, Jan 10
POS
Trinidad
SLU
Castries
$333 Roundtrip, found 3 hours ago
$333
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Mon, Jan 5 from Trinidad to Castries, returning Sat, Jan 10, priced at $333 found 3 hours ago
Caribbean Airlines
Sun, Nov 9 - Thu, Nov 13
POS
Trinidad
SLU
Castries
$341 Roundtrip, found 3 hours ago
$341
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Sun, Nov 9 from Trinidad to Castries, returning Thu, Nov 13, priced at $341 found 3 hours ago
Caribbean Airlines
Thu, Nov 27 - Mon, Dec 1
POS
Trinidad
SLU
Castries
$343 Roundtrip, found 3 hours ago
$343
Roundtrip
found 3 hours ago
Select Caribbean Airlines flight, departing Thu, Nov 27 from Trinidad to Castries, returning Mon, Dec 1, priced at $343 found 3 hours ago
Caribbean Airlines
Wed, May 20 - Wed, May 27
POS
Trinidad
SLU
Castries
$344 Roundtrip, found 5 hours ago
$344
Roundtrip
found 5 hours ago
Select Caribbean Airlines flight, departing Wed, May 20 from Trinidad to Castries, returning Wed, May 27, priced at $344 found 5 hours ago
Caribbean Airlines
Thu, Dec 11 - Sun, Dec 14
POS
Trinidad
SLU
Castries
$353 Roundtrip, found 2 hours ago
$353
Roundtrip
found 2 hours ago
Select Caribbean Airlines flight, departing Thu, Dec 11 from Trinidad to Castries, returning Sun, Dec 14, priced at $353 found 2 hours ago
Caribbean Airlines
Thu, Feb 5 - Sun, Feb 8
POS
Trinidad
SLU
Castries
$354 Roundtrip, found 19 hours ago
$354
Roundtrip
found 19 hours ago
Select Caribbean Airlines flight, departing Thu, Feb 5 from Trinidad to Castries, returning Sun, Feb 8, priced at $354 found 19 hours ago
Caribbean Airlines
Wed, Sep 24 - Sun, Sep 28
POS
Trinidad
SLU
Castries
$354 Roundtrip, found 2 hours ago
$354
Roundtrip
found 2 hours ago
Select Caribbean Airlines flight, departing Wed, Sep 24 from Trinidad to Castries, returning Sun, Sep 28, priced at $354 found 2 hours ago
Hahn Air Technologies
Wed, Dec 24 - Mon, Dec 29
POS
Trinidad
SLU
Castries
$380 Roundtrip, found 4 hours ago
$380
Roundtrip
found 4 hours ago
Select Hahn Air Technologies flight, departing Wed, Dec 24 from Trinidad to Castries, returning Mon, Dec 29, priced at $380 found 4 hours ago

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

November is typically the cheapest month to fly

From $320 - $672 per traveler.

Graph displaying average flight prices per month

Alternative airports near Castries

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Hewanorra Intl. UVF. Average driving time to city center is 53 minutes. Flights from $998
UVF
Hewanorra Intl.
Average driving time to city center53 min
Flights from $998
Flights from Port of Spain (POS) to Castries (SLU)
Origin airport
Piarco Intl.
Destination airport
George F. L. Charles
Airlines serving
Caribbean Airlines, Hahn Air Technologies
Roundtrip price
$320
Distance
237 mi
Average flight time
1 hour 5 mins

Port of Spain to Castries Flights

The cheapest times to fly from Port of Spain to Castries

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 Port of Spain to Castries are during the month of November. You can find some of the cheapest flights from Port of Spain to Castries with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Port of Spain to Castries: 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 Port of Spain to Castries

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 Port of Spain to Castries in 2025. You can also book with separate airlines for your outbound and return journeys, from $157 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 Port of Spain to Castries 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 Port of Spain to Castries 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 Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU) cost?
You can score affordable return tickets from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU) starting at $321. Book a seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Caribbean Airlines flight leaving POS on July 26 2025 and touching down at SLU. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from POS to SLU?
The cheapest flights from POS to SLU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU)?
You can fly nonstop from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU) on a Caribbean Airlines flight.
What is the cheapest airline that flies from POS to SLU?
At the moment, the cheapest airline offering one-way flights from POS to SLU is Caribbean Airlines. You can book a seat on this route from $157. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from POS on September 21 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU)?
On average, there is just 1 nonstop flight departing from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU) per day. If this doesn't suit your schedule, consider flights with layovers. Just customize your search on Expedia to include one or two stops to find the next best option.
What are the most popular departure times for flights from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU)?
More passengers fly between POS and SLU at 9 AM than at any other time. Prefer a quieter experience? Consider flying outside peak hours and there's a chance you'll save on your ticket as well.
What day of the week has the most flights from POS to SLU?
If you fly on a Saturday, you'll get the widest range of choices for flights from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU).
What is the earliest flight from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU)?
Catch the earliest flight at around 8:25AM UTC-4, heading out of Piarco Intl. Airport (POS). You'll be flying for around 1h 5m, touching down at George F. L. Charles Airport (SLU) at approximately 9:30AM UTC-4.
How long does it take to fly from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU)?
The average flight time from POS to SLU is 1 hour and 5 minutes, covering a distance of 240 mi.
What is the best time to fly from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU)?
Select a flight from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**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 Castries from Piarco Intl. Airport (POS)?
Check out your flight options from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU). This is the only airport in Castries you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU) last-minute?
Last-minute bookings from POS to SLU are usually more expensive. To secure the best prices, start looking for flights as soon as possible. That said, if you can play around with your travel dates, you may land a cheap fare just before your departure.
Is it cheaper to book a POS to SLU flight and hotel package?
You'll typically save money by securing a POS to SLU flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Piarco Intl. Airport (POS) to George F. L. Charles Airport (SLU)?
In most cases, you can reschedule or cancel your POS to SLU flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need more information, visit our Customer Service portal.

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Castries nearby Airports

Vieux Fort

Port of Spain to Hewanorra Intl.
$693.92
*Available to One Key members.