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Cheap flights from Castries to London from £564

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Castries to London departing on 6/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Castries to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
Multiple Airlines Logo
11:10 - 19:00
LHR
-
SLU
12h 50m
1 stop
£1,015Multiple Airlines
Tue, 14 Jul - Tue, 4 Aug
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
Multiple Airlines Logo
11:10 - 19:00
LHR
-
SLU
12h 50m
1 stop
£1,020Multiple Airlines
Sat, 18 Jul - Sat, 8 Aug
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
Multiple Airlines Logo
11:10 - 19:00
LHR
-
SLU
12h 50m
1 stop
£1,032Multiple Airlines
Fri, 17 Jul - Fri, 7 Aug
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
Multiple Airlines Logo
11:10 - 19:00
LHR
-
SLU
12h 50m
1 stop
£1,045Multiple Airlines
Sun, 19 Jul - Sun, 9 Aug
Multiple Airlines Logo
15:45 - 09:05
SLU
-
LGW
13h 20m
1 stop
Multiple Airlines Logo
10:05 - 19:00
LGW
-
SLU
12h 55m
1 stop
£1,057Multiple Airlines
Sun, 1 Nov - Tue, 10 Nov
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
Multiple Airlines Logo
11:10 - 19:00
LHR
-
SLU
12h 50m
1 stop
£1,101Multiple Airlines
Wed, 15 Jul - Wed, 5 Aug
Multiple Airlines Logo
12:35 - 05:50
SLU
-
LHR
12h 15m
1 stop
Multiple Airlines Logo
10:45 - 19:00
LHR
-
SLU
13h 15m
1 stop
£1,183Multiple Airlines
Thu, 16 Jul - Thu, 6 Aug
Multiple Airlines Logo
12:35 - 06:15
SLU
-
LHR
12h 40m
1 stop
Multiple Airlines Logo
11:10 - 19:00
LHR
-
SLU
12h 50m
1 stop
£1,185Multiple Airlines
Mon, 27 Jul - Mon, 3 Aug
Multiple Airlines Logo
19:40 - 11:55
SLU
-
LHR
35h 15m
3 stops
Multiple Airlines Logo
07:40 - 14:35
LHR
-
SLU
35h 55m
3 stops
£1,198Multiple Airlines
Mon, 20 Jul - Thu, 13 Aug
Multiple Airlines Logo
08:55 - 09:20
SLU
-
LHR
19h 25m
1 stop
Multiple Airlines Logo
08:00 - 18:55
LHR
-
SLU
14h 55m
1 stop
£1,265Multiple Airlines
Tue, 15 Sep - Mon, 1 Feb

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momondo Fare Finder

 
Customise your flight search to find flights from Castries to London 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, momondo users made 279,928 searches. Data last updated 13 June 2026.
Use the filters below to find and compare flights from Castries to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Tue 14/7

12:35-06:15

1 stop12h 40m

London Heathrow

Tue 4/8

11:10-19:00

1 stop12h 50m

£1,015

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sat 18/7

12:35-06:15

1 stop12h 40m

London Heathrow

Sat 8/8

11:10-19:00

1 stop12h 50m

£1,020

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Fri 17/7

12:35-06:15

1 stop12h 40m

London Heathrow

Fri 7/8

11:10-19:00

1 stop12h 50m

£1,032

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 19/7

12:35-06:15

1 stop12h 40m

London Heathrow

Sun 9/8

11:10-19:00

1 stop12h 50m

£1,045

CastriesLondon

SLU - LGW

SLULGW

Castries George F. L. Charle

Sun 1/11

15:45-09:05

1 stop13h 20m

London Gatwick

Tue 10/11

10:05-19:00

1 stop12h 55m

£1,057

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Wed 15/7

12:35-06:15

1 stop12h 40m

London Heathrow

Wed 5/8

11:10-19:00

1 stop12h 50m

£1,101

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Thu 16/7

12:35-05:50

1 stop12h 15m

London Heathrow

Thu 6/8

10:45-19:00

1 stop13h 15m

£1,183

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Mon 27/7

12:35-06:15

1 stop12h 40m

London Heathrow

Mon 3/8

11:10-19:00

1 stop12h 50m

£1,185

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Mon 20/7

19:40-11:55

3 stops35h 15m

London Heathrow

Thu 13/8

07:40-14:35

3 stops35h 55m

£1,198

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Tue 15/9

08:55-09:20

1 stop19h 25m

London Heathrow

Mon 1/2

08:00-18:55

1 stop14h 55m

£1,265

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

When to book flights from Castries to London

Are you open to changing your travel dates? Check out the ideal times to fly from Castries to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Castries to London (SLU to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Castries to London

Fastest flight time

12h 40m

Direct flights

None
The fastest flight from Castries to London takes 12h 40m
There are no direct flights from Castries to London. There are no popular flight routes from Castries to London.
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Frequently asked questions about flying from Castries to London

  • How far is Castries George F. L. Charle to London by plane?

    Castries George F. L. Charle and London are 4217.4 mi apart from one another. Typically, this will take 12h 40m by plane in normal conditions.

  • When did momondo last update prices for flights from Castries George F. L. Charle Airport to London?

    Prices for flights from Castries George F. L. Charle Airport to London are refreshed on a daily basis.

  • How old do you have to be to fly from Castries George F. L. Charle Airport to London?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Castries George F. L. Charle Airport to London.

  • What documentation or ID do you need to fly to London?

    The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Castries to London

  • How do I get Price Alerts for flights from Castries to London?

    Price Alerts will notify you by email when the price for flights to London from Castries decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Castries to London with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Gatwick
Wembley
Luton
Slough
Southend-on-Sea
Maidstone
Ipswich
Ilford
Canterbury
Guildford
Folkestone
Hayes
Chelmsford
Bedford
Dover
Chichester
Harlow
Colchester

Why use momondo?

Why should I use momondo to find a flight deal from Castries to London?

Finding the right flight to London from Castries is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Castries to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Castries with this policy.

How can momondo help me find flights from Castries to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Castries.

I’m not ready to book a flight from Castries to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Castries to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport