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, JetBlue, or Air Canada 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.

£276+ 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 24 August 2026.

Sun 18/1014:30 -

1 stop15h 15m

Sat 24/1012:40 -

1 stop30h 15m

Deal found 21/8£685

Fri 18/1220:05 -

Nonstop8h 15m

Tue 29/1212:30 -

Nonstop9h 05m

Deal found 20/8£704

Wed 9/1219:20 -

Nonstop8h 15m

Wed 10/312:30 -

Nonstop9h 05m

Deal found 23/8£706

Sun 18/1014:30 -

1 stop16h 20m

Sat 24/1017:40 -

1 stop25h 15m

Deal found 21/8£707

Tue 1/1219:20 -

Nonstop8h 15m

Wed 13/112:30 -

Nonstop9h 05m

Deal found 23/8£717

Mon 9/1119:05 -

Nonstop8h 15m

Mon 16/1112:15 -

Nonstop9h 05m

Deal found 19/8£725

Sat 26/916:25 -

1 stop23h 20m

Sat 7/1107:25 -

1 stop36h 44m

Deal found 19/8£727

Fri 4/916:17 -

1 stop36h 13m

Thu 5/1112:20 -

1 stop31h 49m

Deal found 21/8£731

Fri 2/1020:50 -

Nonstop8h 20m

Sat 7/1112:30 -

Nonstop9h 05m

Deal found 19/8£736

Sun 4/1020:30 -

Nonstop8h 20m

Sun 11/1011:15 -

Nonstop8h 50m

Deal found 20/8£740

Fri 4/916:17 -

1 stop36h 13m

Thu 5/1110:05 -

2 stops32h 56m

Deal found 21/8£745

Thu 24/916:39 -

1 stop23h 06m

Wed 30/911:55 -

1 stop32h 39m

Deal found 22/8£764

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 24 August 2026.

Wed 9/1219:20 -

Nonstop8h 15m

Wed 10/312:30 -

Nonstop9h 05m

Deal found 23/8£706

Sun 18/1014:30 -

2 stops35h 00m

Sat 24/1017:40 -

1 stop25h 15m

Deal found 21/8£732

Thu 24/916:39 -

1 stop23h 06m

Wed 30/911:55 -

1 stop32h 39m

Deal found 22/8£764

Fri 2/1015:10 -

1 stop15h 40m

Sat 7/1118:00 -

1 stop26h 40m

Deal found 21/8£793

Fri 2/1020:50 -

Nonstop8h 20m

Sat 7/1112:30 -

Nonstop9h 05m

Deal found 20/8£738

Sun 18/1014:30 -

1 stop15h 15m

Sat 24/1007:05 -

2 stops35h 50m

Deal found 21/8£754

Sun 20/916:39 -

1 stop23h 06m

Sun 27/908:15 -

1 stop36h 18m

Deal found 23/8£804

Mon 4/116:25 -

2 stops20h 10m

Thu 14/108:40 -

2 stops34h 25m

Deal found 22/8£1,654

Fri 25/920:45 -

Nonstop8h 25m

Sat 3/1011:15 -

Nonstop8h 50m

Deal found 22/8£766

Fri 25/916:39 -

1 stop23h 06m

Sat 3/1008:15 -

1 stop36h 19m

Deal found 24/8£846

Fri 2/1016:39 -

2 stops48h 46m

Sat 7/1117:25 -

2 stops50h 44m

Deal found 21/8£879

Wed 9/1216:55 -

1 stop24h 45m

Wed 10/312:20 -

1 stop30h 58m

Deal found 23/8£893

Sun 13/914:30 -

2 stops23h 55m

Thu 17/913:45 -

2 stops29h 30m

Deal found 22/8£920

Sat 19/920:25 -

Nonstop8h 25m

Mon 19/1011:15 -

Nonstop8h 50m

Deal found 20/8£935

Mon 9/1115:45 -

1 stop12h 10m

Mon 16/1114:45 -

1 stop32h 15m

Deal found 19/8£983

Wed 9/1209:10 -

2 stops16h 05m

Wed 10/310:05 -

1 stop12h 55m

Deal found 23/8£1,021

Sun 4/1015:45 -

1 stop12h 35m

Sun 11/1009:35 -

1 stop14h 25m

Deal found 20/8£1,024

Tue 29/915:32 -

2 stops20h 08m

Thu 5/1109:20 -

2 stops33h 52m

Deal found 19/8£1,663

Mon 9/1115:45 -

1 stop14h 40m

Mon 16/1110:05 -

1 stop12h 55m

Deal found 19/8£1,076

Sun 4/1015:32 -

2 stops20h 08m

Sun 11/1013:45 -

2 stops29h 27m

Deal found 20/8£1,917

Tue 6/1008:55 -

1 stop16h 20m

Tue 13/1011:10 -

1 stop12h 50m

Deal found 22/8£1,092

Thu 1/1015:32 -

2 stops20h 08m

Sat 7/1110:00 -

2 stops33h 12m

Deal found 19/8£1,918

Thu 17/917:50 -

3 stops34h 15m

Wed 30/909:50 -

3 stops32h 20m

Deal found 23/8£1,123

Sun 27/915:32 -

2 stops20h 08m

Sun 8/1113:45 -

2 stops29h 25m

Deal found 19/8£1,918

Sun 20/905:00 -

3 stops23h 50m

Wed 30/912:40 -

2 stops29h 30m

Deal found 22/8£1,180

Sun 13/912:35 -

3 stops27h 25m

Thu 17/908:30 -

2 stops35h 05m

Deal found 22/8£1,186

Sun 18/1016:25 -

2 stops35h 15m

Sat 24/1009:00 -

2 stops35h 14m

Deal found 21/8£1,215

Sun 13/918:55 -

3 stops32h 30m

Thu 17/909:25 -

3 stops34h 10m

Deal found 22/8£1,236

Sun 20/915:32 -

2 stops20h 08m

Sun 27/913:45 -

2 stops29h 27m

Deal found 20/8£2,952

Mon 5/1019:40 -

3 stops32h 45m

Mon 12/1010:25 -

3 stops26h 45m

Deal found 21/8£1,291

Find flight deals from Saint Lucia to London

Round-trip from	£685
One-way from	£276
Good round-trip deal	£720 or less

18/10-24/10
2 total stops
45h 30m total
Saint Lucia to London

Search Deals

18/10
2 total stops
41h 10m total
Saint Lucia to London

Search Deals

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

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Wed 9/12

19:20-07:35

Nonstop8h 15m

London Gatwick

Wed 10/3

12:30-17:35

Nonstop9h 05m

£706

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sun 18/10

14:30-06:30

2 stops35h 00m

London Heathrow

Sat 24/10

17:40-13:55

1 stop25h 15m

£732

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Fri 2/10

20:50-10:10

Nonstop8h 20m

London Gatwick

Sat 7/11

12:30-17:35

Nonstop9h 05m

£738

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sun 18/10

14:30-10:45

1 stop15h 15m

London Gatwick

Sat 24/10

07:05-13:55

2 stops35h 50m

£754

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Thu 24/9

16:39-20:45

1 stop23h 06m

London Heathrow

Wed 30/9

11:55-15:34

1 stop32h 39m

£764

Fastest return journey

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Fri 25/9

20:45-10:10

Nonstop8h 25m

London Gatwick

Sat 3/10

11:15-15:05

Nonstop8h 50m

£766

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Fri 2/10

15:10-11:50

1 stop15h 40m

London Heathrow

Sat 7/11

18:00-16:40

1 stop26h 40m

£793

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sun 20/9

16:39-20:45

1 stop23h 06m

London Heathrow

Sun 27/9

08:15-15:33

1 stop36h 18m

£804

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Fri 25/9

16:39-20:45

1 stop23h 06m

London Heathrow

Sat 3/10

08:15-15:34

1 stop36h 19m

£846

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Fri 2/10

16:39-22:25

2 stops48h 46m

London Gatwick

Sat 7/11

17:25-16:09

2 stops50h 44m

£879

Flights are sorted by cheapest return flights first.

Deals found on 19/8

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 £748). Flying from Saint Lucia to London in August is currently the most expensive (average of £1,101). 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

8,187 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

8,187 reviews

British Airways

6.7

Okay

8,187 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, JetBlue, or Air Canada 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 £748). Flying from Saint Lucia to London in August is currently the most expensive (average of £1,101). 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

Milton Keynes

Luton

Wembley

Gatwick

Slough

Ilford

Hayes

Croydon

Colchester

Eastbourne

Brentford

Southend-on-Sea

Barnet

Enfield

Kingston upon Thames

Southall

Watford

Dover

Romford

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

London flight routes

Other flight options

Popular flights

Alternative routes for Saint Lucia to London

Luis Munoz Marin Intl to Heathrow flights

Bridgetown to Heathrow flights

Bridgetown to Gatwick flights

Luis Munoz Marin Intl to Gatwick flights

Nassau to Heathrow flights

Port of Spain to Heathrow flights

St. George's to Heathrow flights

Punta Cana to Gatwick flights

George Town to Heathrow flights

Nassau to Gatwick flights

Kingston to Gatwick flights

Kingston to Heathrow flights

St. John's to Gatwick flights

Bridgetown to London City flights

St. George's to Gatwick flights

Kingston to Stansted flights

Port of Spain to Gatwick flights

Nassau to Stansted flights

Punta Cana to Heathrow flights

Montego Bay to Gatwick flights

St. John's to Heathrow flights

Port of Spain to Stansted flights

George Town to Gatwick flights

Montego Bay to Heathrow flights

Santo Domingo to Heathrow flights

Kingstown to Gatwick flights

Santo Domingo to Gatwick flights

Castries to Heathrow flights

Bridgetown to Manchester flights

Luis Munoz Marin Intl to Edinburgh flights

Castries to Gatwick flights

Simpson Bay to Heathrow flights

Basseterre to Gatwick flights

Castries to London City flights

Havana to Heathrow flights

Providenciales to Heathrow flights

Top airline flying from Saint Lucia to London

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£688	Average£861	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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 Saint Lucia to London from £276

This is the cheapest one-way 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 24 August 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 24 August 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 24 August 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 24 August 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 24 August 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 24 August 2026.

Last-minute flights from Saint Lucia to LondonDiscover last-minute flight deals from Saint Lucia to London. Data last updated 24 August 2026 and is based on user searches.

Discover last-minute flight deals from Saint Lucia to London. Data last updated 24 August 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 24 August 2026.

Search for one-way flight options from Saint Lucia to London. Find affordable one-way fares based on user searches. Data last updated 24 August 2026.

Find flight deals from Saint Lucia to London

Round-trip from

One-way from

Good round-trip deal

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 24 August 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?

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 Saint Lucia to London

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

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 24 August 2026.

Saint Lucia and London flights

Browse other Saint Lucia and London flight options. Last updated on 24 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top airline flying from Saint Lucia to London

Fly with Cheapflights

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?

100% Free

Book with Flexibility

Travel Smart

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 24 August 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 24 August 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 24 August 2026.

Last-minute flights from Saint Lucia to London
Discover last-minute flight deals from Saint Lucia to London. Data last updated 24 August 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 24 August 2026.