How long is the flight from London to Saint Lucia?

For as low as £591, British Airways can have you in Saint Lucia from London in 9h 05m. The distance between London and Saint Lucia is about 4223 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the most popular routes from London to Saint Lucia?

The most popular route from London to Saint Lucia is London Heathrow - Castries Hewanorra. You may also consider London Gatwick - Castries Hewanorra or London City - Castries Hewanorra.

Can I find deals for flights from London to Saint Lucia that include hotel bookings?

Yes. In addition to deals on London to Saint Lucia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Saint Lucia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Saint Lucia.

Can I find deals for business class flights from London to Saint Lucia?

Yes. Cheapflights offers flight deals from London to Saint Lucia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£402+ Cheap Flights from London to Saint Lucia

Cheap flight deals from London to Saint Lucia

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from London to Saint Lucia
Explore the most affordable flight options available from London to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 October 2026.

Mon 2/1112:15 -

Nonstop9h 05m

Mon 30/1119:05 -

Nonstop8h 15m

Deal found 7/10£561

Thu 3/1212:30 -

Nonstop9h 05m

Wed 23/1219:20 -

Nonstop8h 15m

Deal found 8/10£570

Thu 19/1112:30 -

Nonstop9h 05m

Sun 13/1219:20 -

Nonstop8h 15m

Deal found 6/10£573

Wed 9/1212:30 -

Nonstop9h 05m

Wed 16/1219:20 -

Nonstop8h 15m

Deal found 9/10£575

Wed 4/1112:30 -

Nonstop9h 05m

Wed 11/1119:20 -

Nonstop8h 15m

Deal found 7/10£576

Mon 7/1212:15 -

Nonstop9h 05m

Mon 14/1219:05 -

Nonstop8h 15m

Deal found 6/10£577

Thu 3/1212:30 -

Nonstop9h 05m

Mon 14/1219:05 -

Nonstop8h 15m

Deal found 9/10£579

Sun 8/1112:30 -

Nonstop9h 05m

Mon 23/1119:05 -

Nonstop8h 15m

Deal found 6/10£579

Thu 3/1212:30 -

Nonstop9h 05m

Tue 22/1219:20 -

Nonstop8h 15m

Deal found 8/10£581

Tue 10/1112:30 -

Nonstop9h 05m

Tue 17/1119:20 -

Nonstop8h 15m

Deal found 11/10£585

Tue 10/1112:30 -

Nonstop9h 05m

Wed 25/1119:20 -

Nonstop8h 15m

Deal found 6/10£586

Sun 8/1115:00 -

1 stop29h 40m

Mon 23/1117:35 -

1 stop32h 55m

Deal found 6/10£651

Best flights from London to Saint Lucia
Discover carefully curated flight deals from London to Saint Lucia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 October 2026.

Sun 8/1112:30 -

Nonstop9h 05m

Mon 23/1119:05 -

Nonstop8h 15m

Deal found 11/10£591

Wed 17/210:05 -

1 stop12h 55m

Wed 3/315:45 -

1 stop13h 20m

Deal found 8/10£697

Mon 1/209:00 -

2 stops59h 40m

Sun 7/217:35 -

1 stop34h 55m

Deal found 10/10£703

Mon 1/211:45 -

1 stop30h 31m

Sun 7/215:46 -

1 stop16h 19m

Deal found 10/10£715

Fri 13/1109:00 -

2 stops32h 07m

Sat 21/1113:52 -

2 stops26h 43m

Deal found 10/10£965

Sat 12/1210:50 -

1 stop32h 14m

Sat 23/116:25 -

1 stop35h 25m

Deal found 9/10£1,156

Thu 3/1212:30 -

Nonstop9h 05m

Wed 23/1219:20 -

Nonstop8h 15m

Deal found 11/10£595

Fri 11/1211:45 -

2 stops31h 19m

Thu 21/116:25 -

2 stops19h 40m

Deal found 9/10£1,247

Mon 1/212:15 -

Nonstop9h 05m

Sun 7/219:20 -

Nonstop8h 15m

Deal found 10/10£598

Thu 18/210:05 -

1 stop12h 55m

Mon 1/315:45 -

1 stop14h 40m

Deal found 6/10£697

Thu 26/1111:10 -

1 stop33h 30m

Thu 3/1217:35 -

1 stop32h 55m

Deal found 10/10£713

Thu 14/112:30 -

Nonstop9h 05m

Fri 22/120:05 -

Nonstop8h 15m

Deal found 8/10£601

Wed 17/210:35 -

1 stop12h 25m

Wed 3/315:45 -

1 stop12h 45m

Deal found 8/10£729

Sun 8/1110:05 -

1 stop12h 55m

Mon 23/1115:45 -

1 stop14h 40m

Deal found 9/10£730

Fri 4/1217:00 -

1 stop23h 44m

Mon 21/1216:15 -

1 stop15h 45m

Deal found 10/10£918

Thu 18/213:25 -

1 stop26h 40m

Mon 1/315:45 -

1 stop12h 45m

Deal found 6/10£740

Fri 23/1011:05 -

2 stops31h 26m

Sat 31/1016:17 -

2 stops58h 23m

Deal found 10/10£1,033

Sat 6/213:25 -

1 stop29h 50m

Sun 14/212:35 -

1 stop13h 15m

Deal found 7/10£741

Sat 5/1210:05 -

1 stop12h 55m

Fri 18/1215:45 -

1 stop13h 35m

Deal found 10/10£752

Thu 10/1210:05 -

1 stop12h 55m

Sun 13/1215:45 -

1 stop13h 20m

Deal found 8/10£752

Sat 6/210:05 -

1 stop12h 55m

Sun 14/215:45 -

1 stop13h 20m

Deal found 10/10£758

Thu 21/110:05 -

1 stop12h 55m

Thu 18/215:45 -

1 stop14h 40m

Deal found 11/10£759

Sat 5/1213:25 -

1 stop26h 40m

Fri 18/1212:35 -

1 stop13h 15m

Deal found 10/10£792

Mon 11/110:05 -

1 stop12h 55m

Mon 18/115:45 -

1 stop14h 40m

Deal found 8/10£797

Tue 12/113:25 -

1 stop29h 50m

Tue 26/115:45 -

1 stop12h 45m

Deal found 9/10£798

Sun 1/1110:05 -

1 stop12h 55m

Tue 10/1115:45 -

1 stop13h 35m

Deal found 6/10£812

Thu 10/1213:25 -

1 stop29h 50m

Sun 13/1215:45 -

1 stop12h 45m

Deal found 8/10£847

Mon 9/1113:20 -

1 stop29h 55m

Fri 27/1115:45 -

1 stop12h 45m

Deal found 6/10£882

Wed 18/1110:55 -

2 stops33h 07m

Wed 9/1216:55 -

2 stops43h 25m

Deal found 11/10£971

Wed 18/1110:05 -

2 stops33h 57m

Wed 9/1216:55 -

2 stops25h 40m

Deal found 11/10£977

Find flight deals from London to Saint Lucia

Round-trip from	£561
One-way from	£402
Good round-trip deal	£560 or less
Good one-way deal	£511 or less

British Airways
2/11-30/11
Nonstop
17h 20m total
London to Saint Lucia

Search Deals

8/11-31/12
3 total stops
58h 30m total
London to Saint Lucia

Search Deals

Price to beat on a round-trip flight from London (LON) to Saint Lucia.

Search Deals

Price to beat on a one-way flight from London (LON) to Saint Lucia.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonCastries

STN London Stansted - UVF Castries Hewanorra

STNUVF

London Stansted

Sun 15/11

08:45-14:55

3 stops58h 10m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£405

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Sun 8/11

08:25-14:55

3 stops58h 30m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£414

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Fri 27/11

12:15-14:50

2 stops30h 35m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£449

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Mon 9/11

11:40-14:55

1 stop31h 15m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£449

Fastest return journey

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Wed 30/12

12:30-17:35

Nonstop9h 05m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£461

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Sun 4/4

21:15-13:55

3 stops45h 40m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£465

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Fri 11/12

09:20-13:56

1 stop32h 36m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£480

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Fri 1/1

13:15-18:20

Nonstop9h 05m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£486

LondonCastries

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

LGWSLU

London Gatwick

Wed 30/12

10:05-19:00

1 stop12h 55m

Castries George F. L. Charle

Wed 31/12

00:00-05:00

Nonstop0h 00m

£527

LondonCastries

LGW London Gatwick - UVF Castries Hewanorra

LGWUVF

London Gatwick

Mon 5/4

10:00-13:55

3 stops32h 55m

Castries Hewanorra

Wed 31/12

00:00-05:00

Nonstop0h 00m

£529

Flights are sorted by cheapest return flights first.

Deals found on 7/10

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from London to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from London with our price prediction graph.

LGW-UVF

LGW-SLU

LHR-UVF

LHR-SLU

STN-UVF

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Saint Lucia

LON-LC0

LGW-UVF

LGW-SLU

LHR-UVF

LHR-SLU

What is the cheapest month to book a flight from London to Saint Lucia?

Currently, September is the cheapest month in which you can book a flight from London to Saint Lucia (average of £556). Flying from London to Saint Lucia in December is currently the most expensive (average of £949). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to LC?

When flying from London to Saint Lucia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from London to Saint Lucia delayed?

About 22% of weekly flights between London and Saint Lucia have experienced delays in the past year, with the average delay time being 127 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

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

Friday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, British Airways have had the lowest number of delays on this route, with just 22% of flights being delayed.

How far ahead should I book a flight from London to Saint Lucia?

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Saint Lucia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Saint Lucia

Read through reviews of airlines operating flights from London to Saint Lucia, such as Finnair,Air Canada, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,424 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

Finnair

7.6

Good

1,424 reviews

Finnair

7.6

Good

1,424 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

Air Canada

7.1

Good

11,758 reviews

Finnair

7.6

Good

1,424 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

JetBlue

7.1

Good

3,044 reviews

Finnair

7.6

Good

1,424 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

American Airlines

7.0

Good

12,143 reviews

Finnair

7.6

Good

1,424 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

British Airways

6.7

Okay

8,257 reviews

Finnair

7.6

Good

1,424 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

Related info for your journey

How long is the flight from London to Saint Lucia?
For as low as £591, British Airways can have you in Saint Lucia from London in 9h 05m. The distance between London and Saint Lucia is about 4223 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from London to Saint Lucia?
The most popular route from London to Saint Lucia is London Heathrow - Castries Hewanorra. You may also consider London Gatwick - Castries Hewanorra or London City - Castries Hewanorra.
Can I find deals for flights from London to Saint Lucia that include hotel bookings?
Yes. In addition to deals on London to Saint Lucia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Saint Lucia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Saint Lucia.
Can I find deals for business class flights from London to Saint Lucia?
Yes. Cheapflights offers flight deals from London to Saint Lucia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Saint Lucia?
Currently, September is the cheapest month in which you can book a flight from London to Saint Lucia (average of £556). Flying from London to Saint Lucia in December is currently the most expensive (average of £949). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Alternative routes for London to Saint Lucia

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Top 2 airlines flying from London to Saint Lucia

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£513	Average£751	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£579	Average£873	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Saint Lucia?

Cheapflights helps you search for flights from London to Saint Lucia via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Saint Lucia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Saint Lucia from London.

Can Cheapflights find flights from London to Saint Lucia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Saint Lucia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Saint Lucia become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London to Saint Lucia from £402

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Saint Lucia

Cheapest flights from London to Saint LuciaExplore the most affordable flight options available from London to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 October 2026.

Explore the most affordable flight options available from London to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 October 2026.

Best flights from London to Saint LuciaDiscover carefully curated flight deals from London to Saint Lucia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 October 2026.

Discover carefully curated flight deals from London to Saint Lucia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 October 2026.

Direct flights from London to Saint LuciaExplore direct flight options from London to Saint Lucia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 October 2026.

Explore direct flight options from London to Saint Lucia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 October 2026.

Last-minute flights from London to Saint LuciaDiscover last-minute flight deals from London to Saint Lucia. Data last updated 11 October 2026 and is based on user searches.

Discover last-minute flight deals from London to Saint Lucia. Data last updated 11 October 2026 and is based on user searches.

One-way flights from London to Saint LuciaSearch for one-way flight options from London to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated 11 October 2026.

Search for one-way flight options from London to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated 11 October 2026.

Find flight deals from London to Saint Lucia

Round-trip from

One-way from

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Best time to book a flight from London to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from London with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from London to Saint Lucia?

What is the cheapest time of day to fly from LON to LC?

Find hourly flight availability from London to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 October 2026.

When flying from London to Saint Lucia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from London to Saint Lucia delayed?

About 22% of weekly flights between London and Saint Lucia have experienced delays in the past year, with the average delay time being 127 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

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

Friday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, British Airways have had the lowest number of delays on this route, with just 22% of flights being delayed.

How far ahead should I book a flight from London to Saint Lucia?

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Saint Lucia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Saint Lucia

Read through reviews of airlines operating flights from London to Saint Lucia, such as Finnair,Air Canada, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from London to Saint Lucia?

What are the most popular routes from London to Saint Lucia?

Can I find deals for flights from London to Saint Lucia that include hotel bookings?

How can I find direct flights from London to Saint Lucia?

Can I find deals for business class flights from London to Saint Lucia?

What is the cheapest month to book a flight from London to Saint Lucia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Saint Lucia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from London to Saint Lucia by cabin class

Find flights from London to Saint Lucia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Saint Lucia flights

Browse other London and Saint Lucia flight options. Last updated on 11 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 2 airlines flying from London to Saint Lucia

Fly with Cheapflights

How does Cheapflights help users find flights from London to Saint Lucia?

Why should you use Cheapflights to find cheap flight tickets from London to Saint Lucia?

Can Cheapflights find flights from London to Saint Lucia with no change fees?

Can Cheapflights notify me if prices for flights from London to Saint Lucia become cheaper?

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Travel Smart

Cheapest flights from London to Saint Lucia
Explore the most affordable flight options available from London to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 October 2026.

Best flights from London to Saint Lucia
Discover carefully curated flight deals from London to Saint Lucia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 October 2026.

Direct flights from London to Saint Lucia
Explore direct flight options from London to Saint Lucia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 October 2026.

Last-minute flights from London to Saint Lucia
Discover last-minute flight deals from London to Saint Lucia. Data last updated 11 October 2026 and is based on user searches.

One-way flights from London to Saint Lucia
Search for one-way flight options from London to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated 11 October 2026.