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$158+ Cheap flights from Port of Spain (POS) to Castries (SLU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
POS — SLU
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Port of Spain Piarco Intl to Castries George F. L. Charle are usually found in March or June, booked 26 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

Cheap flight deals from Port of Spain to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Port of Spain (POS) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$305
(SmartFares)

One-way from

$158
(Caribbean Airlines)

Popular in

July

Cheapest in

March

Average price

$549

Good round-trip deal

$466 or less
From Port of Spain Piarco Intl to Castries George F. L. Charle
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One-way flight from Port of Spain Piarco Intl to Castries George F. L. Charle
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Highest demand for flights based on searches. 18% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Port of Spain Piarco Intl to Castries George F. L. Charle.
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Find flight deals from Port of Spain to Castries

Cheapest flights from Port of Spain to Castries
Explore the most affordable flight options available from Port of Spain to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This SmartFares deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/159:05 pmPOS - SLU
Nonstop1h 05mCaribbean Airlines
Fri 11/2112:15 pmSLU - POS
Nonstop1h 05mCaribbean Airlines
Deal found 7/1$305
This Gotogate deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/410:25 amPOS - SLU
Nonstop1h 05mMultiple Airlines
Fri 8/223:20 pmSLU - POS
1 stop25h 05mMultiple Airlines
Deal found 7/3$435
This Gotogate deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/42:00 pmPOS - SLU
1 stop20h 30mHahn Air
Sun 7/63:50 pmSLU - POS
1 stop24h 55mHahn Air
Deal found 7/2$520

Cheapflights Fare Finder

Customize your flight search to find flights from Port of Spain to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Port of Spain to Castries that are best for you.

Fly from

Port of Spain

Fly to

Castries

Route

Depart

Return

Price

Port of SpainCastries

POS - SLU

POSSLU

Port of Spain Piarco Intl

Sat 11/15

9:05 pm-10:10 pm

Nonstop1h 05m

Castries George F. L. Charle

Fri 11/21

12:15 pm-1:20 pm

Nonstop1h 05m

$305

Port of SpainCastries

POS - SLU

POSSLU

Port of Spain Piarco Intl

Fri 12/5

10:25 am-11:30 am

Nonstop1h 05m

Castries George F. L. Charle

Sat 12/13

11:00 am-10:50 am

3 stops23h 50m

$437

Port of SpainCastries

POS - SLU

POSSLU

Port of Spain Piarco Intl

Thu 7/31

5:50 pm-11:30 am

1 stop17h 40m

Castries George F. L. Charle

Mon 8/4

1:10 pm-10:25 am

1 stop21h 15m

$548

Port of SpainCastries

POS - SLU

POSSLU

Port of Spain Piarco Intl

Fri 10/10

10:25 am-11:30 am

Nonstop1h 05m

$158

Port of SpainCastries

POS - SLU

POSSLU

Port of Spain Piarco Intl

Wed 7/16

4:10 pm-6:25 pm

1 stop2h 15m

$236

Port of SpainCastries

POS - SLU

POSSLU

Port of Spain Piarco Intl

Tue 7/15

7:30 am-12:05 pm

1 stop4h 35m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Port of Spain to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Port of Spain with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Port of Spain to Castries

How far ahead should I book a flight from Port of Spain to Castries?

Use this chart to determine the optimal time to book a round-trip flight from Port of Spain to Castries. Price data was last updated on June 27, 2025.

Booking 26 days in advance of your planned departure date is, on average, the best time to get cheap flights from Port of Spain to Castries. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Port of Spain to Castries?

Currently, August is the cheapest month in which you can book a flight from Port of Spain to Castries (average of $525). Flying from Port of Spain to Castries in July is currently the most expensive (average of $767). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from POS to SLU?

Find hourly flight availability from Port of Spain to Castries. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from Port of Spain to Castries, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 11% versus a flight at noon.

How much does it cost to fly round-trip from Port of Spain to Castries?

Reviews of airlines servicing Castries

Get insights into the airlines that provide service to Castries. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Castries. Reviews last updated July 3, 2025.
See what other customers who have flown with Caribbean Airlines from Port of Spain to Castries have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Caribbean Airlines
8.2
Very good
163 reviews

Entertainment

6.8

Crew

8.5

Food

6.9

Comfort

7.9

Boarding

8.2

Overall

8.2

Reviews

1 / 9
6.0
Good

Anonymous,Mar 2025

JFK - GEO

Air hostesses were friendly. There should be more options for tea.
Caribbean Airlines
8.2
Very good
163 reviews
Caribbean Airlines
8.2
Very good
163 reviews

Entertainment

6.8

Crew

8.5

Food

6.9

Comfort

7.9

Boarding

8.2

Overall

8.2

Reviews

1 / 9
6.0
Good

Anonymous,Mar 2025

JFK - GEO

Air hostesses were friendly. There should be more options for tea.

Related info for your journey

Find useful and relevant information for your journey from Port of Spain to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Port of Spain to Castries flight route?

    This flight path from Port of Spain Piarco Intl to Castries George F. L. Charle was viewed by 17 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Port of Spain to Castries round-trip?

    Caribbean Airlines, at $305, was found to be the cheapest airline from Port of Spain to Castries. An alternate airline flying to your destination would be Hahn Air. Caribbean Airlines is 19% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Port of Spain to Castries?

    Looking at all options, your cheapest flight can be booked for $308. While the most popular route (Port of Spain Piarco Intl - Castries George F. L. Charle) can be booked for $202 on average our data indicates $510 when flying from Port of Spain to Castries.

  • Can I find deals for flights from Port of Spain to Castries that include hotel bookings?

    Yes. In addition to deals on Port of Spain to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Port of Spain to Castries?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Port of Spain to Castries.

  • Can I find deals for business class flights from Port of Spain to Castries?

    Yes. Cheapflights offers flight deals from Port of Spain to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Port of Spain to Castries?

    Currently, August is the cheapest month in which you can book a flight from Port of Spain to Castries (average of $525). Flying from Port of Spain to Castries in July is currently the most expensive (average of $767). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Port of Spain?

Book flights to Port of Spain if you plan to visit one of these locations
Gros Islet
Marigot Bay

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Top airline flying from Port of Spain to Castries

Discover the top airline that operate flights from Port of Spain to Castries. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Caribbean AirlinesCheapest$293Average$376FlexibilityNo cancel feeOn-timeN/A

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