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.

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.

£477 Cheap Flights from Castries to London in 2026

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Find the cheapest flights from Castries to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:45 - 09:20

SLU

LHR

12h 35m

1 stop

09:20 - 19:00

LHR

SLU

14h 40m

1 stop

£997Multiple Airlines

Fri, 14 Aug - Fri, 28 Aug

15:45 - 09:20

SLU

LHR

12h 35m

1 stop

09:20 - 19:00

LHR

SLU

14h 40m

1 stop

£998Multiple Airlines

Sun, 10 May - Sun, 20 Sep

17:50 - 09:15

SLU

LHR

34h 25m

3 stops

11:20 - 15:35

LHR

SLU

33h 15m

3 stops

£1,020Multiple Airlines

Sat, 9 May - Sun, 13 Sep

05:00 - 20:10

SLU

LHR

34h 10m

2 stops

11:20 - 15:35

LHR

SLU

33h 15m

3 stops

£1,027Multiple Airlines

Sun, 10 May - Sun, 20 Sep

15:45 - 09:20

SLU

LHR

12h 35m

1 stop

09:20 - 19:00

LHR

SLU

14h 40m

1 stop

£1,032Multiple Airlines

Sun, 21 Jun - Sun, 12 Jul

17:50 - 20:10

SLU

LHR

21h 20m

2 stops

20:05 - 15:35

LHR

SLU

24h 30m

2 stops

£1,033Multiple Airlines

Sat, 9 May - Sun, 13 Sep

05:00 - 20:10

SLU

LHR

34h 10m

2 stops

20:05 - 15:35

LHR

SLU

24h 30m

2 stops

£1,040Multiple Airlines

Sun, 10 May - Sun, 20 Sep

18:00 - 09:15

SLU

LHR

34h 15m

3 stops

11:20 - 15:35

LHR

SLU

33h 15m

3 stops

£1,047Multiple Airlines

Sun, 10 May - Sun, 20 Sep

12:35 - 06:00

SLU

LGW

12h 25m

1 stop

13:05 - 14:35

LGW

SLU

30h 30m

2 stops

£1,088Multiple Airlines

Thu, 2 Apr - Thu, 9 Apr

15:45 - 06:00

SLU

LGW

33h 15m

1 stop

13:05 - 13:10

LGW

SLU

29h 05m

2 stops

£1,129Multiple Airlines

Wed, 1 Apr - Wed, 8 Apr

Fly from

Fly to

Route

Depart

Return

Price

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Fri 14/8

15:45-09:20

1 stop12h 35m

London Heathrow

Fri 28/8

09:20-19:00

1 stop14h 40m

£997

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 10/5

15:45-09:20

1 stop12h 35m

London Heathrow

Sun 20/9

09:20-19:00

1 stop14h 40m

£998

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sat 9/5

17:50-09:15

3 stops34h 25m

London Heathrow

Sun 13/9

11:20-15:35

3 stops33h 15m

£1,020

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 10/5

05:00-20:10

2 stops34h 10m

London Heathrow

Sun 20/9

11:20-15:35

3 stops33h 15m

£1,027

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 21/6

15:45-09:20

1 stop12h 35m

London Heathrow

Sun 12/7

09:20-19:00

1 stop14h 40m

£1,032

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sat 9/5

17:50-20:10

2 stops21h 20m

London Heathrow

Sun 13/9

20:05-15:35

2 stops24h 30m

£1,033

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 10/5

05:00-20:10

2 stops34h 10m

London Heathrow

Sun 20/9

20:05-15:35

2 stops24h 30m

£1,040

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 10/5

18:00-09:15

3 stops34h 15m

London Heathrow

Sun 20/9

11:20-15:35

3 stops33h 15m

£1,047

CastriesLondon

SLU - LGW

SLULGW

Castries George F. L. Charle

Thu 2/4

12:35-06:00

1 stop12h 25m

London Gatwick

Thu 9/4

13:05-14:35

2 stops30h 30m

£1,088

CastriesLondon

SLU - LGW

SLULGW

Castries George F. L. Charle

Wed 1/4

15:45-06:00

1 stop33h 15m

London Gatwick

Wed 8/4

13:05-13:10

2 stops29h 05m

£1,129

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 25m
Direct flights	None

The fastest flight from Castries to London takes 12h 25m

There are no direct flights from Castries to London. There are no popular flight routes from Castries to London.

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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 25m 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.

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.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

Wembley

Dover

Folkestone

Colchester

Worthing

Bedford

Ramsgate

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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Fri 20/3

Fri 27/3

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Cheap flights from Castries to London from £477

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 17/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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Price Alerts

Find the cheapest flights from Castries to London

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momondo Fare Finder

Use the filters below to find and compare flights from Castries to London that are best for you.

When to book flights from Castries to London

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

Direct flights

Travelling to a place near London?

Why use momondo?

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

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

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

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favourite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Castries

According to popular flight searches on momondo this year

Complete your trip to London

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According to popular flight searches on momondo this year