LON - SLU

£347 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 11/10. 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

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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Flights 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

Wed, 27 Aug - Fri, 5 Sep
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11:25 - 19:00LHR-SLU
12h 35m1 stop
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12:35 - 06:20SLU-LHR
12h 45m1 stop
Fri, 29 Aug - Sun, 7 Sep
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11:25 - 19:00LHR-SLU
12h 35m1 stop
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12:35 - 06:20SLU-LHR
12h 45m1 stop
Mon, 10 Nov - Mon, 17 Nov
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10:35 - 19:00LHR-SLU
12h 25m1 stop
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12:35 - 05:50SLU-LHR
13h 15m1 stop
Wed, 19 Nov - Sun, 30 Nov
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08:40 - 14:35LHR-SLU
33h 55m1 stop
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12:10 - 09:35SLU-LHR
17h 25m1 stop
Mon, 25 Aug - Mon, 1 Sep
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11:25 - 19:00LHR-SLU
12h 35m1 stop
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12:35 - 06:20SLU-LHR
12h 45m1 stop
Mon, 8 Dec - Wed, 7 Jan
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20:00 - 09:30LHR-SLU
41h 30m2 stops
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10:25 - 06:25SLU-LHR
40h 00m2 stops
Tue, 18 Nov - Sun, 30 Nov
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09:30 - 19:00LGW-SLU
13h 30m2 stops
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09:10 - 05:20SLU-LGW
16h 10m2 stops
Tue, 18 Nov - Sun, 30 Nov
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09:30 - 15:15LGW-SLU
33h 45m3 stops
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09:10 - 05:20SLU-LGW
16h 10m2 stops
Mon, 10 Nov - Mon, 17 Nov
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19:30 - 09:30LHR-SLU
42h 00m3 stops
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16:35 - 07:10SLU-LHR
34h 35m3 stops
Thu, 7 Aug - Thu, 21 Aug
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18:50 - 11:30LHR-SLU
21h 40m2 stops
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15:45 - 07:15SLU-LHR
34h 30m3 stops
Useful Info

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.

How much is a round-trip flight from London to Castries?

What is the cheapest month to fly from London to Castries?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Castries, 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 London to Castries is September, where tickets cost £486 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £973 and £812 respectively.


Good to know - Cheap tickets from London to Castries

Low seasonSeptember
High seasonAugust
Cheapest flight£347
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (35% more expensive 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 £471 for a one-way ticket and £979 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.
6.6
British AirwaysOverall score based on 7109 reviews
6.9Boarding
6.7Comfort
6.3Food
7.6Crew
6.4Entertainment
Airline reviews

Experience with British Airways was hopeless and the response from ground staff after flight cancellation was hopeless

2.0 MediocreSrinivas, Jul 2025LHR - HYD
Read more British Airways reviews

Experience with British Airways was hopeless and the response from ground staff after flight cancellation was hopeless

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

this was a good experience from on time boarding and take off to early arrival. Comfortable seats became empty seat next to me.

Cancelled flight, limited information and chaotic rebooking and accommodation provision. Apathetic crew who were more interested in taking about their layover plans than remembering passengers orders and actually bringing them (after 3 reminders). To top it off, priority baggage checked in at The Wing (LHR’s first class checkin) was delivered last to the baggage belt.

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

Only for BA because we had to get to Edinburgh at a certain time. Baggage lost, late boarding with only one person checking, again, our passports and boarding passes until the despatch controller had to step in to get us away. Will never fly BA again.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

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

Information on your arrival and departure airports

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