LON - SLU

£506 Find Cheap Flights from London to Castries – Compare and Save

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 16/10. 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
£630
Multiple Airlines
Mon 9/11Mon 16/11
LGW - SLU • 1 stop
Cheapest one-way flight
£506
Multiple Airlines
Fri 16/10
LGW - SLU • 3 stops
Start a new search
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

Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
10:05 - 19:00
LGW
-
SLU
12h 55m
1 stop
Multiple Airlines Logo
15:45 - 10:25
SLU
-
LGW
14h 40m
1 stop
£630Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
10:05 - 19:00
LGW
-
SLU
12h 55m
1 stop
Multiple Airlines Logo
15:45 - 10:25
SLU
-
LGW
14h 40m
1 stop
£631Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
10:05 - 19:00
LGW
-
SLU
12h 55m
1 stop
Multiple Airlines Logo
15:45 - 10:25
SLU
-
LGW
14h 40m
1 stop
£646Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
10:05 - 19:00
LGW
-
SLU
12h 55m
1 stop
Multiple Airlines Logo
15:45 - 10:25
SLU
-
LGW
14h 40m
1 stop
£647Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
10:05 - 19:00
LGW
-
SLU
12h 55m
1 stop
Multiple Airlines Logo
15:45 - 10:25
SLU
-
LGW
14h 40m
1 stop
£648Multiple Airlines
Thu, 1 Oct - Wed, 21 Oct
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
£670Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
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
£672Multiple Airlines
Sun, 23 Aug - Sun, 6 Sep
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
£676Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
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
£688Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
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
£690Multiple Airlines
Booking Insights

Good to know - Cheap tickets from London to Castries

Cheapest flight£506
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 £506 for a one-way ticket and £630 for a return.

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

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

  • 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 8082 reviews
6.4Food
6.9Boarding
7.7Crew
6.8Comfort
6.4Entertainment
Airline reviews

Food is horrible. Flight was good and the staff were mostly men.

6.0 GoodAnu, Jun 2026
LHR - PHX
Read more British Airways reviews

Food is horrible. Flight was good and the staff were mostly men.

Delayed suitcase - terrible service to get my suitcase next day, I was informed it would arrive today in the afternoon (Jun/28). Now, I was informed I may or may not receive it until 3 am (Jun/29).

Seats were comfortable, but boarding was the worst I've ever seen. Way too much walking to get onboard as we had to go up & down steps several & then bus took us halfway around the airport for boarding & had to board outside after a very long bus rood.

I will never want to book with these people. They are arrogant and rude. Food was really really bad, crew was even worst

The plane was so old, it needs to be retired! The windows were rattling we paid for premier economy and there was no footrest. Video console was so old, barely had any games for kids. Video console is very slow to react. The gaming console was broken. The foldable food table was sticky and the air hostess had a rough time opening it and closing it for us!!

Generally very good. I think their service is better than some other big names I used to travel with. Their food variety is second to none - and you can place order beforehand. Their seating design is a bit awkward for service, I'd say. Flight attendants must be tall enough - long legs and arms - to reach the window seat passenger while crossing over the isle passenger. Also appreciated the variety on entertainment.

Could have used more leg room for “business class” which is basically coach with a middle seat blocked. Crew was friendly, attentive. Zero entertainment.

Generally okay. Disappointing compared to some of their competitors. My seat hadn’t been cleaned properly which was upsetting

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

I flew four flights on British Airways within two weeks. I was unable to download the boarding pass to my phone for any of the four flights. I could check-in for my flight but the system would not give me boarding pass. I tried multiple ways and multiple times. I discovered many other passengers also had the same issue with their boarding passes. No explanation or acknowledgement by BA.

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

Information on your arrival and departure airports

Castries (SLU)