£245 Find Cheap Flights from Trinidad and Tobago to Saint Lucia

1 adult
1 adult, Economy

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KAYAK's insights & trends for flights to Saint Lucia

Get data-powered insights and trends for flights to Saint Lucia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Saint Lucia?

These are the best return prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Saint Lucia from Trinidad and Tobago found in the last 72 hours was to Castries, at £347 return. The most popular route is Port of Spain (POS) to Castries (SLU) and the cheapest return airline ticket found on this route in the last 72 hours was £347.

What is the cheapest month to fly from Trinidad and Tobago to Saint Lucia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Trinidad and Tobago to Saint Lucia, 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 Trinidad and Tobago to Saint Lucia is March, when tickets cost £249 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is £375 and £372 respectively.

How far in advance should I book a flight from Trinidad and Tobago to Saint Lucia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Saint Lucia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Trinidad and Tobago to Saint Lucia, you should book around 9 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Which is the cheapest airport to fly into in Saint Lucia?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Saint Lucia is Castries George F. L. Charle Airport (SLU), with an average flight price of £147.

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Good to know - Cheap tickets from Trinidad and Tobago to Saint Lucia

Low seasonJanuary
High seasonAugust
Cheapest flight£116
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from Port of Spain to Castries

FAQs for booking flights from Trinidad and Tobago to Saint Lucia

  • How does KAYAK find such low prices on flights from Trinidad and Tobago to Saint Lucia?

    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 Trinidad and Tobago to Saint Lucia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Trinidad and Tobago to Saint Lucia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Trinidad and Tobago to Saint Lucia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Trinidad and Tobago to Saint Lucia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Trinidad and Tobago to Saint Lucia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Trinidad and Tobago to Saint Lucia?

    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 from Trinidad and Tobago to Saint Lucia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Saint Lucia?

    Based on KAYAK data, the cheapest day to fly to Saint Lucia is Thursday when return tickets can be as cheap as £259. On the other hand, the most expensive day to fly is Tuesday, when return prices are £624 on average.

  • What is the cheapest time of day to fly to Saint Lucia?

    The cheapest time of day to fly to Saint Lucia is generally in the afternoon, when round-trip flights cost £365 on average. The most expensive time of day to fly to Saint Lucia is generally at night, which is peak travel time and where the average cost of a ticket is £382.

Top airline flying from Trinidad and Tobago to Saint Lucia

 
Need help choosing which airline to fly with from Trinidad and Tobago to Saint Lucia? 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.
8.2
Caribbean AirlinesOverall score based on 157 reviews
6.8Entertainment
7.9Comfort
6.8Food
8.2Boarding
8.5Crew
Airline reviews

I love my entire experience. What I love most, was the friendliness and helpfulness of the staff at check-in and that of the crew on the flight. Their Customer Service was paramount.

10.0 ExcellentAnonymous, May 2025JFK - KIN
Read more Caribbean Airlines reviews

I love my entire experience. What I love most, was the friendliness and helpfulness of the staff at check-in and that of the crew on the flight. Their Customer Service was paramount.

The flight crew was extremely hospitable, though there was a lot of turbulence, they made it a good experience. The only negative was the inflight experience for economy class. There wasn’t any, or at least non that I was aware of.

I liked the friendliness of the employees at the airport

I liked the extra leg room in Caribbean plus. Worth the extra money. The food could have been more balanced, there was no salad or veggies

The Flight itself was smooth and uneventful. The crew was polite and caring. I used the Lounge in Piarco and the service was STELLAR

Crew were quite friendly. Food was very poor considering the price of the ticket and the flight time. Could not charge my phone due to USB charger not working..

The food wasn’t good. Need better food. There wasn’t any entertainment.

STEWARDESSES WERE AWESOME! The food could be a bit better. Rice was SOGGY with gravy and the chicken was RUBBERY.

I was treated well in first class. I have no complaints. I will definitely fly with my favourite airline again this year.

There was no music on the flights unless you came with your headset.

Book cheap flights from Trinidad and Tobago to Saint Lucia

Cheapest flights to Saint Lucia from Trinidad and Tobago found in 2025

Recent return flight deals

30/11Sun
directCaribbean Airlines
1h 05mPOS-SLU
7/12Sun
directCaribbean Airlines
1h 05mSLU-POS
£245
17/7Thu
directCaribbean Airlines
1h 05mPOS-SLU
24/7Thu
directCaribbean Airlines
1h 05mSLU-POS
£255
27/7Sun
directCaribbean Airlines
1h 05mPOS-SLU
3/8Sun
directCaribbean Airlines
1h 05mSLU-POS
£365
17/7Thu
1 stopCaribbean Airlines
6h 55mPOS-SLU
21/7Mon
directCaribbean Airlines
1h 05mSLU-POS
£373
25/8Mon
directCaribbean Airlines
1h 05mPOS-SLU
30/8Sat
directCaribbean Airlines
1h 05mSLU-POS
£386
24/7Thu
directCaribbean Airlines
1h 05mPOS-SLU
25/7Fri
2 stopsCaribbean Airlines
24h 35mSLU-POS
£425
1/8Fri
directCaribbean Airlines
1h 05mPOS-SLU
4/8Mon
directCaribbean Airlines
1h 05mSLU-POS
£444
17/7Thu
1 stop
6h 55mPOS-SLU
24/7Thu
1 stop
14h 30mSLU-POS
£477
17/7Thu
2 stops
6h 05mPOS-SLU
24/7Thu
1 stop
14h 30mSLU-POS
£478
26/7Sat
directCaribbean Airlines
1h 05mPOS-SLU
2/8Sat
directCaribbean Airlines
1h 05mSLU-POS
£481

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Recent one-way flight deals

10/10Fri
directCaribbean Airlines
1h 05mPOS-SLU
£116

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Last minute flights to Saint Lucia

Last minute flight, train and bus deals

13/6Fri
directCaribbean Airlines
1h 05mPOS-SLU
17/6Tue
multi-stopCaribbean Airlines
14h 25mSLU-POS
£277
14/6Sat
multi-stopCaribbean Airlines
13h 30mPOS-SLU
16/6Mon
directCaribbean Airlines
1h 05mSLU-POS
£297
13/6Fri
directCaribbean Airlines
1h 05mPOS-SLU
17/6Tue
multi-stopCaribbean Airlines
14h 25mSLU-POS
£327

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Everything you need to know for your flight to Saint Lucia

Cabin class types available on flights to Saint Lucia

Cabin classes available on flights to Saint Lucia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Saint Lucia
Business Class flights to Saint Lucia
Prem Econ Class flights to Saint Luciafrom £1,896
Economy class flights to Saint Luciafrom £255

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