What day of the week experiences the fewest flight delays on this route?

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from London to Saint Lucia?

JetBlue, Air Canada, and WestJet are the most popular carriers operating from London to Saint Lucia

How often are flights from London to Saint Lucia delayed?

Historically, on average around 22% of flights between London and Saint Lucia have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

What is the most punctual flight time for London to Saint Lucia flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on London to Saint Lucia flights?

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 22% of their flights experiencing any sort of delay.

How many flights depart from London to Saint Lucia on average per week?

The number of flights available between London and Saint Lucia is 2 per week as of November 2026. The most frequent departure day is Mon, with 100% of weekly flights leaving on this day.

When did momondo last update prices for flights from London to Saint Lucia?

Prices for flights from London to Saint Lucia are refreshed on a daily basis.

How many operators does momondo search for flights from London to Saint Lucia?

The number of operators available for flights from London to Saint Lucia is 2 as of November 2026.

How old do you have to be to fly from London to Saint Lucia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Saint Lucia.

What documentation or ID do you need to fly to Saint Lucia?

The travel and health documents required for your trip to Saint Lucia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint Lucia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£444 Cheap Flights from London to Saint Lucia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London to Saint Lucia

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£522British Airways

Sat, 30 Jan - Thu, 11 Feb

13:15 - 18:20LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£523British Airways

Fri, 4 Dec - Sat, 12 Dec

13:15 - 17:05LGW London Gatwick-UVF Castries Hewanorra

8h 50mdirect

18:50 - 08:10UVF Castries Hewanorra-LGW London Gatwick

8h 20mdirect

£523British Airways

Sun, 18 Apr - Sun, 2 May

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£524British Airways

Thu, 3 Dec - Tue, 22 Dec

15:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

29h 40m1 stop Toronto Pearson Intl

17:35 - 08:30UVF Castries Hewanorra-LHR London Heathrow

34h 55m1 stop Toronto Pearson Intl

£643Air Canada

Thu, 3 Dec - Wed, 9 Dec

18:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

26h 40m1 stop Toronto Pearson Intl

17:35 - 08:30UVF Castries Hewanorra-LHR London Heathrow

34h 55m1 stop Toronto Pearson Intl

£644Air Canada

Tue, 1 Dec - Thu, 10 Dec

10:05 - 19:00LGW London Gatwick-SLU Castries George F. L. Charle

12h 55m1 stop Bridgetown Grantley Adams Intl

15:45 - 10:25SLU Castries George F. L. Charle-LGW London Gatwick

14h 40m1 stop Bridgetown Grantley Adams Intl

£646Multiple Airlines

Thu, 3 Dec - Thu, 17 Dec

11:15 - 13:32LGW London Gatwick-UVF Castries Hewanorra

30h 17m2 stops Orlando Miami

16:41 - 07:30UVF Castries Hewanorra-LGW London Gatwick

34h 49m2 stops Miami Orlando

£681American Airlines

Mon, 7 Dec - Mon, 14 Dec

19:10 - 15:41LHR London Heathrow-UVF Castries Hewanorra

24h 31m2 stops Boston Logan Intl Miami

16:38 - 22:10UVF Castries Hewanorra-LHR London Heathrow

25h 32m2 stops Miami New York John F Kennedy Intl

£700American Airlines

Sun, 13 Dec - Sun, 17 Jan

09:55 - 15:24LHR London Heathrow-UVF Castries Hewanorra

33h 29m1 stop Charlotte Douglas

15:28 - 12:00UVF Castries Hewanorra-LHR London Heathrow

16h 32m1 stop Charlotte Douglas

£700American Airlines

Sun, 13 Dec - Tue, 19 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£562British Airways

Wed, 11 Nov - Tue, 22 Dec

13:15 - 18:20LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

20:05 - 08:20UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£569British Airways

Fri, 13 Nov - Fri, 20 Nov

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£610British Airways

Sun, 15 Nov - Sun, 22 Nov

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:05 - 07:20UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£614British Airways

Sun, 15 Nov - Mon, 23 Nov

13:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

31h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

17:35 - 08:30UVF Castries Hewanorra-LHR London Heathrow

34h 55m1 stop Toronto Pearson Intl

£666Air Canada

Sun, 15 Nov - Sun, 22 Nov

13:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

31h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

17:35 - 06:30UVF Castries Hewanorra-LHR London Heathrow

32h 55m2 stops Toronto Pearson Intl Ottawa

£673Air Canada

Sun, 15 Nov - Sun, 22 Nov

18:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

26h 40m1 stop Toronto Pearson Intl

17:35 - 08:30UVF Castries Hewanorra-LHR London Heathrow

34h 55m1 stop Toronto Pearson Intl

£712Air Canada

Sun, 15 Nov - Sun, 22 Nov

09:45 - 13:30LHR London Heathrow-UVF Castries Hewanorra

31h 45m1 stop Miami

13:58 - 12:05UVF Castries Hewanorra-LHR London Heathrow

18h 07m1 stop Miami

£1,113American Airlines

Sun, 15 Nov - Thu, 31 Dec

09:55 - 15:07LHR London Heathrow-UVF Castries Hewanorra

33h 12m1 stop Charlotte Douglas

15:47 - 12:05UVF Castries Hewanorra-LHR London Heathrow

16h 18m1 stop Miami

£1,116American Airlines

Sat, 14 Nov - Thu, 31 Dec

11:15 - 15:41LHR London Heathrow-UVF Castries Hewanorra

32h 26m1 stop Miami

13:58 - 12:05UVF Castries Hewanorra-LHR London Heathrow

18h 07m1 stop Miami

£1,123American Airlines

Wed, 11 Nov - Tue, 22 Dec

Cheap direct flights

Enter your travel dates to find the best prices.

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£522British Airways

Sat, 30 Jan - Thu, 11 Feb

13:15 - 18:20LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£523British Airways

Fri, 4 Dec - Sat, 12 Dec

13:15 - 17:05LGW London Gatwick-UVF Castries Hewanorra

8h 50mdirect

18:50 - 08:10UVF Castries Hewanorra-LGW London Gatwick

8h 20mdirect

£523British Airways

Sun, 18 Apr - Sun, 2 May

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£524British Airways

Thu, 3 Dec - Tue, 22 Dec

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£524British Airways

Tue, 8 Dec - Tue, 15 Dec

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£524British Airways

Sun, 6 Dec - Tue, 22 Dec

12:15 - 17:20LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

18:40 - 08:00UVF Castries Hewanorra-LGW London Gatwick

8h 20mdirect

£525British Airways

Mon, 15 Mar - Mon, 29 Mar

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£525British Airways

Tue, 2 Mar - Tue, 9 Mar

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

19:20 - 07:35UVF Castries Hewanorra-LGW London Gatwick

8h 15mdirect

£525British Airways

Tue, 1 Dec - Thu, 10 Dec

12:30 - 17:35LGW London Gatwick-UVF Castries Hewanorra

9h 05mdirect

18:35 - 07:55UVF Castries Hewanorra-LGW London Gatwick

8h 20mdirect

£525British Airways

Thu, 18 Mar - Thu, 1 Apr

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British Airways flights from London to Saint Lucia

Our best British Airways deals on London to Saint Lucia flight tickets

British Airways

30 Jan

LGW12:30London Gatwick

9h 05m

UVF17:35Castries Hewanorra

11 Feb

UVF19:20Castries Hewanorra

8h 15m

LGW07:35London Gatwick

£522

British Airways

4 Dec

LGW13:15London Gatwick

9h 05m

UVF18:20Castries Hewanorra

12 Dec

UVF19:20Castries Hewanorra

8h 15m

LGW07:35London Gatwick

£523

British Airways

3 Dec

LGW12:30London Gatwick

9h 05m

UVF17:35Castries Hewanorra

22 Dec

UVF19:20Castries Hewanorra

8h 15m

LGW07:35London Gatwick

£524

Air Canada flights from London to Saint Lucia

Our best Air Canada deals on London to Saint Lucia flight tickets

Air Canada

3 Dec

LHR15:00London Heathrow

29h 40m

1 stop

UVF16:40Castries Hewanorra

9 Dec

UVF17:35Castries Hewanorra

34h 55m

1 stop

LHR08:30London Heathrow

£643

Air Canada

1 Dec

LHR18:00London Heathrow

26h 40m

1 stop

UVF16:40Castries Hewanorra

10 Dec

UVF17:35Castries Hewanorra

34h 55m

1 stop

LHR08:30London Heathrow

£644

Air Canada

14 Apr

LHR14:10London Heathrow

30h 30m

1 stop

UVF15:40Castries Hewanorra

22 Apr

UVF16:45Castries Hewanorra

32h 50m

1 stop

LHR06:35London Heathrow

£651

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Sat 30/1

12:30-17:35

Nonstop9h 05m

Castries Hewanorra

Thu 11/2

19:20-07:35

Nonstop8h 15m

£522

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Fri 4/12

13:15-18:20

Nonstop9h 05m

Castries Hewanorra

Sat 12/12

19:20-07:35

Nonstop8h 15m

£523

Fastest return journey

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Sun 18/4

13:15-17:05

Nonstop8h 50m

Castries Hewanorra

Sun 2/5

18:50-08:10

Nonstop8h 20m

£523

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Thu 3/12

12:30-17:35

Nonstop9h 05m

Castries Hewanorra

Tue 22/12

19:20-07:35

Nonstop8h 15m

£524

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Thu 3/12

15:00-16:40

1 stop29h 40m

Castries Hewanorra

Wed 9/12

17:35-08:30

1 stop34h 55m

£643

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Tue 1/12

18:00-16:40

1 stop26h 40m

Castries Hewanorra

Thu 10/12

17:35-08:30

1 stop34h 55m

£644

LondonCastries

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

LGWSLU

London Gatwick

Thu 3/12

10:05-19:00

1 stop12h 55m

Castries George F. L. Charle

Thu 17/12

15:45-10:25

1 stop14h 40m

£646

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Mon 7/12

11:15-13:32

2 stops30h 17m

Castries Hewanorra

Mon 14/12

16:41-07:30

2 stops34h 49m

£681

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Sun 13/12

19:10-15:41

2 stops24h 31m

Castries Hewanorra

Sun 17/1

16:38-22:10

2 stops25h 32m

£700

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Sun 13/12

09:55-15:24

1 stop33h 29m

Castries Hewanorra

Tue 19/1

15:28-12:00

1 stop16h 32m

£700

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Saint Lucia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Saint Lucia?

The month of September is, on average, the cheapest month to fly to Saint Lucia from London, with most prices found around £549. If you don’t want to visit Saint Lucia in September, then you should wait until October to fly from London, when ticket prices are also cheap, with an average price of £595.

What is the cheapest London to Saint Lucia flight route?

Fly from London Gatwick to Castries Hewanorra for the best London - Saint Lucia flight prices

What cabin class options are available on London to Saint Lucia flights?

There are 3 cabin classes available to choose from on London to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Saint Lucia flights?

You could potentially save up to 55% on your flight if you consider stops on a London to Saint Lucia flight.

Cheap London to Saint Lucia flight deals and tips

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

Best price found	£444
Fastest flight time	8h 50m
Direct flights	Every day
Airports in Saint Lucia	7 airports

The best one-way flight to Saint Lucia from London in the past 72 hours is £444. The best return flight deal from London to Saint Lucia found on momondo in the last 72 hours is £522.

The fastest flight from London to Saint Lucia takes 8h 50m

Direct flights go from London to Saint Lucia every day.

There are 7 airports in Saint Lucia. From London there are direct flights to Castries Hewanorra (UVF).

Search flight deals

Frequently asked questions about flying from London to Saint Lucia

When did momondo last update prices for flights from London to Saint Lucia?
Prices for flights from London to Saint Lucia are refreshed on a daily basis.
How many operators does momondo search for flights from London to Saint Lucia?
The number of operators available for flights from London to Saint Lucia is 2 as of November 2026.
How old do you have to be to fly from London to Saint Lucia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The travel and health documents required for your trip to Saint Lucia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint Lucia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London to Saint Lucia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Saint Lucia is Boeing 777 (97.17% of total bookings). The next most popular plane models are Airbus A330-300 (1.74%), Airbus A350-900 (0.65%), and Airbus A330-900neo (0.44%).

Best airlines flying from London to Saint Lucia

Compare and see reviews for airlines that fly from London to Saint Lucia with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £507	Free Cancellation	Rating 6.7 8,285 reviews		Search British Airways flights
American Airlines	PriceFrom £675	Free Cancellation	Rating 7.0 12,225 reviews		Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Saint Lucia . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for London to Saint Lucia flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Saint Lucia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Saint Lucia.

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

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

An easier way to manage your Saint Lucia trip

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Flights to Castriesfrom £681

Cheap flights from London to Saint Lucia from £444

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Saint Lucia departing on 7/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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British Airways flights from London to Saint Lucia

Our best British Airways deals on London to Saint Lucia flight tickets

Air Canada flights from London to Saint Lucia

Our best Air Canada deals on London to Saint Lucia flight tickets

momondo Fare Finder

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

See travel insights to Saint Lucia from

How to get the cheapest flight ticket from London to Saint Lucia

What is the cheapest month to fly to Saint Lucia?

What is the cheapest London to Saint Lucia flight route?

What cabin class options are available on London to Saint Lucia flights?

Can stopping save me money on London to Saint Lucia flights?

What is the cheapest airline that flies from London to Saint Lucia?

How often are flights from London to Saint Lucia delayed?

What is the most punctual flight time for London to Saint Lucia flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on London to Saint Lucia flights?

How many flights depart from London to Saint Lucia on average per week?

Cheap London to Saint Lucia flight deals and tips

Best price found

Fastest flight time

Direct flights

Airports in Saint Lucia

Frequently asked questions about flying from London to Saint Lucia

Best airlines flying from London to Saint Lucia

Compare and see reviews for airlines that fly from London to Saint Lucia with momondo

Why use momondo?

An easier way to manage your Saint Lucia 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 Saint Lucia

Popular Cities in Saint Lucia

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

London flight routes

According to popular flight searches on momondo this year

Saint Lucia flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Saint Lucia

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

Cabin classes currently available on flights to Saint Lucia

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

Complete your trip to Saint Lucia

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According to popular flight searches on momondo this year