LON - SLU

£393 Find Cheap Flights from London to Castries

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Castries departing on 18/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Castries

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Castries, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Castries, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£756
Multiple Airlines
Thu 11/6Sun 21/6
LHR - SLU • 1 stop
Cheapest one-way flight
£393
Multiple Airlines
Sat 18/4
LGW - SLU • 3 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Castries!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Castries (LON-SLU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Castries that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Castries

Thu, 11 Jun - Sun, 21 Jun
Multiple Airlines Logo
10:45 - 19:00
LHR
-
SLU
13h 15m
1 stop
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
£756Multiple Airlines
Thu, 27 Aug - Sun, 6 Sep
Multiple Airlines Logo
10:45 - 19:00
LHR
-
SLU
13h 15m
1 stop
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
£777Multiple Airlines
Fri, 5 Jun - Fri, 12 Jun
Multiple Airlines Logo
09:20 - 19:00
LHR
-
SLU
14h 40m
1 stop
Multiple Airlines Logo
15:45 - 09:20
SLU
-
LHR
12h 35m
1 stop
£798Multiple Airlines
Sun, 15 Mar - Wed, 18 Mar
Multiple Airlines Logo
10:35 - 12:05
LHR
-
SLU
29h 30m
1 stop
Multiple Airlines Logo
12:35 - 05:50
SLU
-
LHR
13h 15m
1 stop
£811Multiple Airlines
Fri, 20 Mar - Fri, 27 Mar
Multiple Airlines Logo
08:00 - 12:05
LHR
-
SLU
32h 05m
1 stop
Multiple Airlines Logo
15:45 - 09:55
SLU
-
LHR
14h 10m
1 stop
£819Multiple Airlines
Thu, 19 Mar - Wed, 25 Mar
Multiple Airlines Logo
10:35 - 19:00
LHR
-
SLU
12h 25m
1 stop
Multiple Airlines Logo
15:45 - 08:30
SLU
-
LHR
12h 45m
1 stop
£828Multiple Airlines
Sun, 31 May - Tue, 9 Jun
Multiple Airlines Logo
11:10 - 19:00
LHR
-
SLU
12h 50m
1 stop
Multiple Airlines Logo
09:10 - 06:15
SLU
-
LHR
16h 05m
1 stop
£829Multiple Airlines
Sun, 15 Mar - Mon, 23 Mar
Multiple Airlines Logo
13:20 - 15:15
LHR
-
SLU
29h 55m
1 stop
Multiple Airlines Logo
15:45 - 08:30
SLU
-
LHR
12h 45m
1 stop
£836Multiple Airlines
Sat, 14 Mar - Sat, 21 Mar
Multiple Airlines Logo
08:40 - 14:50
LHR
-
SLU
34h 10m
3 stops
Multiple Airlines Logo
14:05 - 17:00
SLU
-
LHR
22h 55m
3 stops
£838Multiple Airlines
Sat, 13 Jun - Sun, 21 Jun
Multiple Airlines Logo
11:10 - 19:00
LHR
-
SLU
12h 50m
1 stop
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
£842Multiple Airlines
Booking Insights

KAYAK’s insights & trends for London to Castries flights

Get data-powered insights and trends into flights from London to Castries to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly direct between London and Castries?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from London to Castries.

There is just one airline that flies from London to Castries direct and that is British Airways. The best return deal found from British Airways for the route is £490.

Find deals

Good to know - Cheap tickets from London to Castries

Low seasonNovember
Cheapest flight£393
Best time to beat the crowds (43% less expensive on average)
Most popular time to fly and prices are also 36% lower on average.
Flight from London Gatwick Airport to Castries

When to book flights from London to Castries

Are your dates flexible? Find out the best times to travel from London to Castries based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Castries

  • What is the cheapest flight from London to Castries?

    In the last 3 days, the lowest price for a flight from London to Castries was £393 for a one-way ticket and £756 for a return.

  • Which aircraft models fly most regularly from London to Castries?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Castries?

    oneworld is the only airline alliance operating flights between London and Castries.

  • How does KAYAK find such low prices on flights from London to Castries?

    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 London to Castries.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Castries?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castries from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Castries?

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

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Castries?

    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 to Castries from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from London to Castries

 
See real verified KAYAK customer reviews for airlines flying from London to Castries. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Castries? 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.
6.7
British AirwaysOverall score based on 7775 reviews
6.4Food
7.6Crew
6.9Boarding
6.4Entertainment
6.8Comfort
Airline reviews

The luggage problem I previously mentioned was actually this flight

2.0 MediocreNatasha, Feb 2026
LHR - MAD
Read more British Airways reviews

The luggage problem I previously mentioned was actually this flight

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

No WiFi. No food. 250 ml of water only drink option. No entertainment options. Extremely bare bones flight

Economy seats were good and spacious. Much better than virgin by a mile.

It’s the old style plane with the old Ying Yang seats doesn’t compare to other airlines with newer planes.

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

Everything you need to know for your flight from London to Castries

Information on your arrival and departure airports

Castries (SLU)