How long is the flight to London?

The duration of your flight to London depends on your departure and arrival airports. Obviously, any flights that include a stopover will also be longer. The most popular route to London on KAYAK is from Castries , which takes 17h 38m .

Which London airport is closest to central London?

There are 6 major airports in London. The nearest airport from London city centre is London City (8 miles), followed by London Heathrow Airport (14 miles), London Gatwick Airport (24 miles), and London Luton Airport (28 miles).

How many cities have direct flights to London?

From Saint Lucia, there are direct flights to London from 1 city . This city is Castries and there are 21 direct flights each week.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Stansted Airport (STN) , with an average flight price of £93.

How much is a flight to London?

On average, a flight to London costs £844. The cheapest price found on KAYAK in the last 2 weeks cost £755 and departed from Castries Hewanorra Airport.

What is the cheapest day to fly to London?

Based on KAYAK data, the cheapest day to fly to London is Friday where round-trip tickets can be as cheap as £790. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are £963 on average.

What is the cheapest month to fly to London?

The cheapest month for flights to London is September , where tickets cost £737 on average for return flights. On the other hand, the most expensive months are April and January, where the average cost of tickets from Saint Lucia is £1,102 and £969 respectively. For one-way flights, the best month to travel is September with an average price of £431.

How does KAYAK find such low prices on flights to London?

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 to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London is likely to change within 7 days, so travellers know whether to wait or book now.

What is the Hacker Fare option on flights to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London?

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 London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

How many airports are there in London?

There are 6 airports in London: London Heathrow Airport (LHR), London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY) and London Southend Airport (SEN). The busiest airport is London Heathrow Airport (LHR), with 73% of all flights arriving there.

How many direct flights to London are there each day?

There are around 299 direct flights from within Saint Lucia to London every day. Most flights depart in the morning, with 46% of flights departing in the morning.

How many direct flights to London are there each week?

Each week there are around 2,090 direct flights from within Saint Lucia to London. The most common day for departures is Sunday, with 17% of flights taking off on this day.

How many long-haul flights are there to London each week?

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to London. Instead, there are 21 long-haul flights (6-12 hour flight duration), with the most arriving from Castries.

£337 CHEAP FLIGHTS from Saint Lucia to London

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Flight Deals

Cheap Flights from Saint Lucia to London

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Last minute

Direct

Recent return flight deals from Saint Lucia to London

Thu, 3 Dec - Mon, 7 Dec

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

8h 15mdirect

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

9h 05mdirect

£733British Airways

Thu, 3 Dec - Mon, 7 Dec

16:55 - 20:55UVF Castries Hewanorra-LHR London Heathrow

24h 00m1 stop New York John F Kennedy Intl

08:05 - 15:31LHR London Heathrow-UVF Castries Hewanorra

35h 26m1 stop New York John F Kennedy Intl

£737JetBlue

Thu, 5 Nov - Thu, 12 Nov

17:32 - 20:55UVF Castries Hewanorra-LHR London Heathrow

23h 23m1 stop New York John F Kennedy Intl

07:25 - 16:12LHR London Heathrow-UVF Castries Hewanorra

36h 47m1 stop New York John F Kennedy Intl

£738JetBlue

Mon, 16 Nov - Mon, 23 Nov

17:32 - 21:40UVF Castries Hewanorra-LHR London Heathrow

24h 08m1 stop New York John F Kennedy Intl

08:05 - 16:02LHR London Heathrow-UVF Castries Hewanorra

35h 57m1 stop New York John F Kennedy Intl

£738JetBlue

Tue, 1 Dec - Tue, 8 Dec

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

8h 15mdirect

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

9h 05mdirect

£742British Airways

Tue, 1 Dec - Tue, 8 Dec

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

8h 15mdirect

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

9h 05mdirect

£743British Airways

Thu, 3 Dec - Mon, 7 Dec

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

8h 15mdirect

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

9h 05mdirect

£749British Airways

Wed, 20 Jan - Wed, 27 Jan

16:55 - 21:40UVF Castries Hewanorra-LHR London Heathrow

24h 45m1 stop New York John F Kennedy Intl

07:25 - 15:34LHR London Heathrow-UVF Castries Hewanorra

36h 09m1 stop New York John F Kennedy Intl

£767JetBlue

Wed, 20 Jan - Wed, 27 Jan

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

8h 15mdirect

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

9h 05mdirect

£767British Airways

Sun, 29 Nov - Sun, 6 Dec

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

8h 15mdirect

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

9h 05mdirect

£770British Airways

Recent last minute flight deals from Saint Lucia to London

Fri, 23 Oct - Fri, 20 Nov

16:39 - 20:45UVF Castries Hewanorra-LHR London Heathrow

23h 06m1 stop New York John F Kennedy Intl

09:20 - 12:49LHR London Heathrow-UVF Castries Hewanorra

31h 29m1 stop Boston Logan Intl

£736JetBlue

Fri, 23 Oct - Fri, 20 Nov

20:50 - 10:10UVF Castries Hewanorra-LGW London Gatwick

8h 20mdirect

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

9h 05mdirect

£833British Airways

Fri, 23 Oct - Tue, 17 Nov

15:10 - 07:30UVF Castries Hewanorra-LHR London Heathrow

35h 20m1 stop Toronto Pearson Intl

12:05 - 16:40LHR London Heathrow-UVF Castries Hewanorra

56h 35m2 stops Zurich Toronto Pearson Intl

£834Air Canada

Fri, 23 Oct - Wed, 18 Nov

15:10 - 07:30UVF Castries Hewanorra-LHR London Heathrow

35h 20m1 stop Toronto Pearson Intl

09:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

35h 40m2 stops Zurich Toronto Pearson Intl

£834Air Canada

Sun, 25 Oct - Thu, 19 Nov

16:40 - 11:20UVF Castries Hewanorra-LHR London Heathrow

14h 40m1 stop Toronto Pearson Intl

06:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

38h 40m2 stops Zurich Toronto Pearson Intl

£834Air Canada

Fri, 23 Oct - Thu, 19 Nov

15:10 - 11:50UVF Castries Hewanorra-LHR London Heathrow

15h 40m1 stop Toronto Pearson Intl

09:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

35h 40m2 stops Zurich Toronto Pearson Intl

£834Air Canada

Sun, 25 Oct - Wed, 18 Nov

16:40 - 08:30UVF Castries Hewanorra-LHR London Heathrow

35h 50m1 stop Toronto Pearson Intl

09:00 - 16:40LHR London Heathrow-UVF Castries Hewanorra

35h 40m2 stops Zurich Toronto Pearson Intl

£834Air Canada

Sun, 25 Oct - Tue, 17 Nov

16:40 - 11:20UVF Castries Hewanorra-LHR London Heathrow

14h 40m1 stop Toronto Pearson Intl

12:05 - 16:40LHR London Heathrow-UVF Castries Hewanorra

56h 35m2 stops Zurich Toronto Pearson Intl

£834Air Canada

Fri, 23 Oct - Tue, 17 Nov

15:10 - 09:30UVF Castries Hewanorra-LHR London Heathrow

37h 20m2 stops Toronto Pearson Intl Ottawa

19:25 - 16:40LHR London Heathrow-UVF Castries Hewanorra

49h 15m2 stops Vienna Intl Toronto Pearson Intl

£838Air Canada

Tue, 20 Oct - Tue, 27 Oct

20:30 - 09:50UVF Castries Hewanorra-LGW London Gatwick

8h 20mdirect

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

9h 05mdirect

£888British Airways

Booking Insights

KAYAK's insights & trends for flights to London

Get data-powered insights and trends into flights to London to help you find the cheapest flights, the best time to fly and much more.

Prices

What is the cheapest day to fly to London? The average price of all round-trip flights to London clicked on KAYAK for each day over the last 12 months.: Based on KAYAK data, the cheapest day to fly to London is Friday where round-trip tickets can be as cheap as £790. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are £963 on average.
What is the cheapest month to fly to London? To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to London, 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 to London is September, where tickets cost £737 on average for return flights. On the other hand, the most expensive months are April and January, where the average cost of tickets from Saint Lucia is £1,102 and £969 respectively. For one-way flights, the best month to travel is September with an average price of £431.
Which is the cheapest airport to fly into in London?: Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Stansted Airport (STN), with an average flight price of £93.

Find deals

Low season	October
High season	September
Cheapest flight	£337

Best time to beat the crowds (18% less expensive on average)

Most popular time to fly and prices are also 14% lower on average.

Flight from Castries to London Heathrow Airport

Which London airport is closest to central London?
There are 6 major airports in London. The nearest airport from London city centre is London City (8 miles), followed by London Heathrow Airport (14 miles), London Gatwick Airport (24 miles), and London Luton Airport (28 miles).
How much is a flight to London?
On average, a flight to London costs £844. The cheapest price found on KAYAK in the last 2 weeks cost £755 and departed from Castries Hewanorra Airport.
How does KAYAK find such low prices on flights to London?
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 to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London is likely to change within 7 days, so travellers know whether to wait or book now.
What is the Hacker Fare option on flights to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London?
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 London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Reviews of the top airline flying from Saint Lucia to London

Need help choosing which airline to fly with to London? 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.

6.7

British AirwaysOverall score based on 8266 reviews

6.8Comfort

6.5Entertainment

7.7Crew

7.0Boarding

6.4Food

Airline reviews

I really enjoyed the flight…and food and the hospitality but didn’t get the food I requested for.

10.0 Excellentchitra, Oct 2026

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£337 Find Cheap Flights from Saint Lucia to London – Compare and Save

Cheap Flights from Saint Lucia to London

Recent return flight deals from Saint Lucia to London

Recent one-way flight deals from Saint Lucia to London

Recent last minute flight deals from Saint Lucia to London

Recent direct flight deals from Saint Lucia to London

KAYAK's insights & trends for flights to London

What is the cheapest day to fly to London?

What is the cheapest month to fly to London?

Which is the cheapest airport to fly into in London?

How many airports are there in London?

How long is the flight to London?

How many direct flights to London are there each day?

How many direct flights to London are there each week?

How many long-haul flights are there to London each week?

How many cities have direct flights to London?

Good to know - Cheap tickets from Saint Lucia to London

Low season

High season

Cheapest flight

FAQs - booking London flights

Top tips for finding cheap flights to London

Reviews of the top airline flying from Saint Lucia to London

Travelling to a place near London?

More options for your flight to London

Complete your trip to London with a hotel stay or car hire

Cabin class types available on flights to London

Find direct flights for London

Flights from local origins to London

Choose which airport to fly into in London

Flights to other popular destinations

Find deals for your return flight