How long is the flight from Saint Lucia to London?

There are many flights that can get you from Saint Lucia to London in 8h 15m. Fly via British Airways, Air Canada, or WestJet to get the fastest option. The distance from Saint Lucia to London is about 4223 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

Most travelers choose Castries Hewanorra - London Heathrow, Castries Hewanorra - London Gatwick or Castries George F. L. Charle - London Heathrow when deciding on the best route from Saint Lucia to London.

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

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

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

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

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

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

£292+ Cheap Flights from Saint Lucia to London

Cheap flight deals from Saint Lucia to London

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Saint Lucia to London
Explore the most affordable flight options available from Saint Lucia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2026.

Sat 19/1219:20 -

Nonstop8h 15m

Thu 31/1212:30 -

Nonstop9h 05m

Deal found 17/9£726

Sun 25/1016:32 -

1 stop25h 08m

Fri 30/1009:20 -

1 stop31h 33m

Deal found 16/9£740

Fri 30/1020:05 -

Nonstop8h 15m

Fri 6/1113:15 -

Nonstop9h 05m

Deal found 16/9£743

Thu 5/1119:20 -

Nonstop8h 15m

Thu 12/1112:30 -

Nonstop9h 05m

Deal found 16/9£764

Fri 23/1020:50 -

Nonstop8h 20m

Fri 30/1013:15 -

Nonstop9h 05m

Deal found 16/9£769

Tue 3/1119:20 -

Nonstop8h 15m

Tue 10/1112:30 -

Nonstop9h 05m

Deal found 19/9£775

Fri 23/1016:39 -

1 stop23h 06m

Fri 30/1009:20 -

1 stop31h 33m

Deal found 16/9£776

Thu 5/1115:55 -

1 stop34h 35m

Thu 12/1119:55 -

2 stops47h 00m

Deal found 16/9£778

Wed 28/1019:20 -

Nonstop8h 15m

Fri 6/1113:15 -

Nonstop9h 05m

Deal found 15/9£784

Tue 20/1020:30 -

Nonstop8h 20m

Tue 24/1112:30 -

Nonstop9h 05m

Deal found 17/9£786

Thu 5/1117:32 -

1 stop23h 23m

Thu 12/1107:25 -

1 stop36h 47m

Deal found 16/9£819

Fri 30/1016:40 -

2 stops33h 50m

Fri 6/1113:00 -

2 stops55h 40m

Deal found 15/9£844

Best flights from Saint Lucia to London
Discover carefully curated flight deals from Saint Lucia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Sat 19/1219:20 -

Nonstop8h 15m

Thu 31/1212:30 -

Nonstop9h 05m

Deal found 17/9£726

Thu 5/1115:55 -

1 stop34h 35m

Thu 12/1119:55 -

2 stops47h 00m

Deal found 16/9£778

Fri 30/1016:40 -

2 stops33h 50m

Fri 6/1113:00 -

2 stops55h 40m

Deal found 15/9£844

Tue 3/1115:55 -

2 stops40h 55m

Tue 10/1114:50 -

2 stops52h 05m

Deal found 19/9£895

Tue 3/1117:32 -

1 stop24h 08m

Tue 10/1112:20 -

1 stop31h 52m

Deal found 19/9£954

Thu 5/1116:32 -

2 stops23h 03m

Thu 12/1110:00 -

2 stops33h 05m

Deal found 16/9£1,185

Fri 30/1020:05 -

Nonstop8h 15m

Fri 6/1113:15 -

Nonstop9h 05m

Deal found 15/9£769

Fri 23/1020:50 -

Nonstop8h 20m

Fri 30/1013:15 -

Nonstop9h 05m

Deal found 16/9£769

Sun 25/1016:32 -

2 stops36h 38m

Fri 30/1006:30 -

2 stops34h 23m

Deal found 16/9£939

Wed 28/1019:20 -

Nonstop8h 15m

Fri 6/1113:15 -

Nonstop9h 05m

Deal found 15/9£784

Sun 22/1115:55 -

2 stops40h 55m

Fri 4/1214:50 -

2 stops28h 05m

Deal found 19/9£956

Fri 30/1016:32 -

1 stop25h 08m

Fri 6/1109:20 -

1 stop32h 55m

Deal found 15/9£1,033

Wed 28/1016:32 -

2 stops26h 03m

Fri 6/1117:25 -

2 stops50h 47m

Deal found 15/9£940

Tue 20/1020:30 -

Nonstop8h 20m

Tue 24/1112:30 -

Nonstop9h 05m

Deal found 17/9£786

Thu 19/1115:55 -

2 stops40h 55m

Sat 5/1214:50 -

2 stops28h 05m

Deal found 18/9£1,043

Wed 28/1016:32 -

2 stops25h 58m

Fri 6/1117:55 -

2 stops50h 17m

Deal found 15/9£969

Wed 28/1015:32 -

2 stops21h 48m

Fri 6/1110:00 -

2 stops33h 12m

Deal found 15/9£1,185

Tue 20/1016:39 -

1 stop23h 06m

Tue 24/1112:20 -

1 stop31h 42m

Deal found 17/9£1,097

Tue 20/1016:39 -

2 stops24h 46m

Tue 24/1117:25 -

2 stops50h 37m

Deal found 17/9£1,040

Mon 28/1219:05 -

Nonstop8h 15m

Wed 6/112:30 -

Nonstop9h 05m

Deal found 14/9£954

Sat 19/1215:45 -

1 stop12h 45m

Thu 31/1210:35 -

1 stop12h 25m

Deal found 17/9£1,043

Sat 19/1213:40 -

2 stops35h 35m

Thu 31/1210:05 -

1 stop12h 55m

Deal found 17/9£1,048

Thu 1/1013:55 -

3 stops25h 10m

Wed 7/1020:50 -

3 stops25h 15m

Deal found 16/9£1,057

Tue 13/1016:39 -

2 stops41h 31m

Thu 15/1018:00 -

2 stops50h 04m

Deal found 16/9£1,069

Wed 28/1015:45 -

1 stop13h 20m

Fri 6/1110:05 -

1 stop12h 55m

Deal found 15/9£1,083

Fri 23/1012:35 -

1 stop12h 40m

Fri 30/1013:25 -

1 stop29h 50m

Deal found 16/9£1,089

Wed 14/1016:39 -

2 stops36h 16m

Wed 21/1017:35 -

2 stops50h 59m

Deal found 16/9£1,093

Mon 28/1217:35 -

2 stops44h 15m

Wed 6/112:30 -

Nonstop9h 05m

Deal found 14/9£1,101

Fri 30/1016:32 -

2 stops36h 38m

Fri 6/1117:25 -

2 stops50h 47m

Deal found 15/9£1,131

Sun 22/1115:45 -

1 stop12h 45m

Fri 4/1210:35 -

1 stop12h 25m

Deal found 19/9£1,143

Find flight deals from Saint Lucia to London

Round-trip from	£725
One-way from	£292

British Airways
7/3-15/3
Nonstop
17h 20m total
Saint Lucia to London

Search Deals

18/10-31/12
2 total stops
37h 40m total
Saint Lucia to London

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sun 18/10

14:30-09:10

2 stops37h 40m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£292

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sun 11/10

14:30-07:45

3 stops36h 15m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£335

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Thu 7/1

16:55-20:55

1 stop24h 00m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£336

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Tue 10/11

15:55-15:05

2 stops43h 10m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£365

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Tue 17/11

15:55-16:40

3 stops44h 45m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£370

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Thu 29/10

14:55-12:50

2 stops41h 55m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£408

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Thu 17/12

15:55-22:40

2 stops50h 45m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£450

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Fri 8/1

16:55-21:40

1 stop24h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£465

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Thu 29/10

14:55-11:20

1 stop16h 25m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£473

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Fri 16/10

15:10-21:00

2 stops24h 50m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£529

Flights are sorted by cheapest return flights first.

Deals found on 19/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Saint Lucia to London

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

UVF-LGW

UVF-LHR

UVF-LCY

SLU-LHR

SLU-LGW

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 Saint Lucia to London

LC0-LON

UVF-LGW

UVF-LHR

UVF-LCY

SLU-LHR

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

Currently, September is the cheapest month in which you can book a flight from Saint Lucia to London (average of £739). Flying from Saint Lucia to London in November is currently the most expensive (average of £1,118). 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 LC to LON?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Saint Lucia to London as you normally would.

Reviews of airlines servicing London

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

British Airways

6.7

Okay

8,228 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2026

BUD - LHR

We had an absolute nightmare experience with British Airways. Check in was bad. They “lost” our business class seats that I selected a long time ago. Our luggage almost didn’t make it on the plane in London to LAX. Flight attendant was rude!! Not that it should matter but she thought bc of the seat assignment issue we were “upgraded” and that’s we had no choice in meals. Not that the meals were any good anyway.

British Airways

6.7

Okay

8,228 reviews

British Airways

6.7

Okay

8,228 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2026

BUD - LHR

Related info for your journey

How long is the flight from Saint Lucia to London?
There are many flights that can get you from Saint Lucia to London in 8h 15m. Fly via British Airways, Air Canada, or WestJet to get the fastest option. The distance from Saint Lucia to London is about 4223 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Saint Lucia to London?
Most travelers choose Castries Hewanorra - London Heathrow, Castries Hewanorra - London Gatwick or Castries George F. L. Charle - London Heathrow when deciding on the best route from Saint Lucia to London.
Can I find deals for flights from Saint Lucia to London that include hotel bookings?
Yes. In addition to deals on Saint Lucia to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Saint Lucia to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Lucia to London.
Can I find deals for business class flights from Saint Lucia to London?
Yes. Cheapflights offers flight deals from Saint Lucia to London 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 Saint Lucia to London?
Currently, September is the cheapest month in which you can book a flight from Saint Lucia to London (average of £739). Flying from Saint Lucia to London in November is currently the most expensive (average of £1,118). 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

Hounslow

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Gatwick

Wembley

Slough

Ilford

Hayes

Croydon

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Eastbourne

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Barnet

Southall

Watford

Kingston upon Thames

Dagenham

Dover

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Alternative routes for Saint Lucia to London

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Top airline flying from Saint Lucia to London

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£709	Average£876	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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Cheapflights helps you search for flights from Saint Lucia to London 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 Saint Lucia to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Saint Lucia to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Saint Lucia to London with no change fees.

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

Yes, Cheapflights offers price alerts on Saint Lucia to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Saint Lucia to London from £292

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Saint Lucia to London

Cheapest flights from Saint Lucia to LondonExplore the most affordable flight options available from Saint Lucia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2026.

Explore the most affordable flight options available from Saint Lucia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2026.

Best flights from Saint Lucia to LondonDiscover carefully curated flight deals from Saint Lucia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Discover carefully curated flight deals from Saint Lucia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Direct flights from Saint Lucia to LondonExplore direct flight options from Saint Lucia to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 September 2026.

Explore direct flight options from Saint Lucia to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 September 2026.

Last-minute flights from Saint Lucia to LondonDiscover last-minute flight deals from Saint Lucia to London. Data last updated 19 September 2026 and is based on user searches.

Discover last-minute flight deals from Saint Lucia to London. Data last updated 19 September 2026 and is based on user searches.

One-way flights from Saint Lucia to LondonSearch for one-way flight options from Saint Lucia to London. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Search for one-way flight options from Saint Lucia to London. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Find flight deals from Saint Lucia to London

Round-trip from

One-way from

Cheapflights Fare Finder

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

Best time to book a flight from Saint Lucia to London

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

Cheapflights Insights

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

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

Find hourly flight availability from Saint Lucia to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 September 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Saint Lucia to London as you normally would.

Reviews of airlines servicing London

Read through reviews of airlines operating flights from Saint Lucia to London, such as British Airways. 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 Saint Lucia to London?

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

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

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

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

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

Travelling to a place near London?

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Alternative routes for Saint Lucia to London

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Complete your trip

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

Direct flights to England

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

Search flights from Saint Lucia to London by cabin class

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

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 19 September 2026.

Saint Lucia and London flights

Browse other Saint Lucia and London flight options. Last updated on 19 September 2026.

Popular flight searches

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Saint Lucia to London flights

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Top airline flying from Saint Lucia to London

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

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

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

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

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Cheapest flights from Saint Lucia to London
Explore the most affordable flight options available from Saint Lucia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2026.

Best flights from Saint Lucia to London
Discover carefully curated flight deals from Saint Lucia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Direct flights from Saint Lucia to London
Explore direct flight options from Saint Lucia to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 September 2026.

Last-minute flights from Saint Lucia to London
Discover last-minute flight deals from Saint Lucia to London. Data last updated 19 September 2026 and is based on user searches.

One-way flights from Saint Lucia to London
Search for one-way flight options from Saint Lucia to London. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.