Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Castries to London from £526

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 25/10. 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

Find the cheapest flights from Castries to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:45 - 09:20SLU  Castries George F. L. Charle-LHR London Heathrow
12h 35m1 stop Bridgetown Grantley Adams Intl
Multiple Airlines Logo
09:35 - 19:00LHR  London Heathrow-SLU Castries George F. L. Charle
14h 25m1 stop Bridgetown Grantley Adams Intl
£937Multiple Airlines
Sun, 13 Sep - Thu, 17 Sep
Multiple Airlines Logo
15:45 - 09:20SLU  Castries George F. L. Charle-LHR London Heathrow
12h 35m1 stop Bridgetown Grantley Adams Intl
Multiple Airlines Logo
09:35 - 12:05LHR  London Heathrow-SLU Castries George F. L. Charle
31h 30m1 stop Bridgetown Grantley Adams Intl
£962Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
17:50 - 06:20SLU  Castries George F. L. Charle-LGW London Gatwick
31h 30m2 stops Port of Spain Piarco Intl New York John F Kennedy Intl
Multiple Airlines Logo
13:05 - 14:35LGW  London Gatwick-SLU Castries George F. L. Charle
30h 30m2 stops New York John F Kennedy Intl Port of Spain Piarco Intl
£1,046Multiple Airlines
Thu, 10 Sep - Thu, 24 Sep
Multiple Airlines Logo
18:55 - 08:05SLU  Castries George F. L. Charle-LHR London Heathrow
32h 10m3 stops Port of Spain Piarco Intl New York John F Kennedy Intl Dublin
Multiple Airlines Logo
11:20 - 14:35LHR  London Heathrow-SLU Castries George F. L. Charle
32h 15m3 stops Lisbon Humberto Delgado New York John F Kennedy Intl Port of Spain Piarco Intl
£1,087Multiple Airlines
Sun, 13 Sep - Thu, 17 Sep
Multiple Airlines Logo
12:35 - 17:10SLU  Castries George F. L. Charle-LGW London Gatwick
23h 35m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Dublin
Multiple Airlines Logo
15:40 - 19:00LGW  London Gatwick-SLU Castries George F. L. Charle
32h 20m3 stops Reykjavik Keflavik Intl Toronto Pearson Intl Bridgetown Grantley Adams Intl
£1,121Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
10:15 - 20:10SLU  Castries George F. L. Charle-LHR London Heathrow
28h 55m2 stops Port of Spain Piarco Intl New York John F Kennedy Intl
Multiple Airlines Logo
11:45 - 13:10LHR  London Heathrow-SLU Castries George F. L. Charle
30h 25m3 stops Amsterdam Schiphol New York John F Kennedy Intl Port of Spain Piarco Intl
£1,151Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
18:55 - 08:05SLU  Castries George F. L. Charle-LHR London Heathrow
32h 10m3 stops Port of Spain Piarco Intl New York John F Kennedy Intl Dublin
Multiple Airlines Logo
09:35 - 19:00LHR  London Heathrow-SLU Castries George F. L. Charle
14h 25m1 stop Bridgetown Grantley Adams Intl
£1,153Multiple Airlines
Sun, 13 Sep - Thu, 17 Sep
Multiple Airlines Logo
18:55 - 20:10SLU  Castries George F. L. Charle-LHR London Heathrow
20h 15m2 stops Port of Spain Piarco Intl New York John F Kennedy Intl
Multiple Airlines Logo
11:20 - 14:35LHR  London Heathrow-SLU Castries George F. L. Charle
32h 15m3 stops Lisbon Humberto Delgado New York John F Kennedy Intl Port of Spain Piarco Intl
£1,167Multiple Airlines
Sun, 13 Sep - Thu, 17 Sep
Multiple Airlines Logo
05:00 - 10:00SLU  Castries George F. L. Charle-LGW London Gatwick
24h 00m2 stops Port of Spain Piarco Intl Orlando
Multiple Airlines Logo
11:35 - 13:10LGW  London Gatwick-SLU Castries George F. L. Charle
30h 35m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Port of Spain Piarco Intl
£1,192Multiple Airlines
Sun, 13 Sep - Wed, 16 Sep
Multiple Airlines Logo
05:00 - 10:00SLU  Castries George F. L. Charle-LGW London Gatwick
24h 00m2 stops Port of Spain Piarco Intl Orlando
Multiple Airlines Logo
12:40 - 13:10LGW  London Gatwick-SLU Castries George F. L. Charle
29h 30m2 stops Toronto Pearson Intl Port of Spain Piarco Intl
£1,194Multiple Airlines
Sun, 13 Sep - Wed, 16 Sep

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 August 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 Castries George F. L. Charle - LHR London Heathrow

SLULHR

Castries George F. L. Charle

Sun 13/9

15:45-09:20

1 stop12h 35m

London Heathrow

Thu 17/9

09:35-19:00

1 stop14h 25m

£937

CastriesLondon

SLU Castries George F. L. Charle - LHR London Heathrow

SLULHR

Castries George F. L. Charle

Wed 9/9

15:45-09:20

1 stop12h 35m

London Heathrow

Wed 16/9

09:35-12:05

1 stop31h 30m

£962

CastriesLondon

SLU Castries George F. L. Charle - LGW London Gatwick

SLULGW

Castries George F. L. Charle

Thu 10/9

17:50-06:20

2 stops31h 30m

London Gatwick

Thu 24/9

13:05-14:35

2 stops30h 30m

£1,046

CastriesLondon

SLU Castries George F. L. Charle - LHR London Heathrow

SLULHR

Castries George F. L. Charle

Sun 13/9

18:55-08:05

3 stops32h 10m

London Heathrow

Thu 17/9

11:20-14:35

3 stops32h 15m

£1,087

CastriesLondon

SLU Castries George F. L. Charle - LGW London Gatwick

SLULGW

Castries George F. L. Charle

Fri 25/9

12:35-17:10

3 stops23h 35m

London Gatwick

Fri 2/10

15:40-19:00

3 stops32h 20m

£1,121

CastriesLondon

SLU Castries George F. L. Charle - LHR London Heathrow

SLULHR

Castries George F. L. Charle

Wed 9/9

10:15-20:10

2 stops28h 55m

London Heathrow

Wed 16/9

11:45-13:10

3 stops30h 25m

£1,151

CastriesLondon

SLU Castries George F. L. Charle - LHR London Heathrow

SLULHR

Castries George F. L. Charle

Sun 13/9

18:55-08:05

3 stops32h 10m

London Heathrow

Thu 17/9

09:35-19:00

1 stop14h 25m

£1,153

CastriesLondon

SLU Castries George F. L. Charle - LHR London Heathrow

SLULHR

Castries George F. L. Charle

Sun 13/9

18:55-20:10

2 stops20h 15m

London Heathrow

Thu 17/9

11:20-14:35

3 stops32h 15m

£1,167

CastriesLondon

SLU Castries George F. L. Charle - LGW London Gatwick

SLULGW

Castries George F. L. Charle

Sun 13/9

05:00-10:00

2 stops24h 00m

London Gatwick

Wed 16/9

11:35-13:10

3 stops30h 35m

£1,192

CastriesLondon

SLU Castries George F. L. Charle - LGW London Gatwick

SLULGW

Castries George F. L. Charle

Sun 13/9

05:00-10:00

2 stops24h 00m

London Gatwick

Wed 16/9

12:40-13:10

2 stops29h 30m

£1,194

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 15m

Direct flights

None
The fastest flight from Castries to London takes 12h 15m
There are no direct flights from Castries to London. There are no popular flight routes from Castries to London.
Search flight deals

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 15m 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
Wembley
Gatwick
Milton Keynes
Luton
Southend-on-Sea
Slough
Ipswich
Maidstone
Folkestone
Ilford
Hastings
Canterbury
Chichester
Hayes
Guildford
Bedford
Harlow
Colchester
Chelmsford

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.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 12/9
Sat 19/9
By creating a price alert you accept our terms of use and privacy policy.

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