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 JetBlue, British Airways, 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 Gatwick, Castries Hewanorra - London Heathrow or Castries George F. L. Charle - London Gatwick 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.

£341+ 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 5 October 2026.

Wed 18/1119:20 -

Nonstop8h 15m

Wed 25/1112:30 -

Nonstop9h 05m

Deal found 4/10£766

Mon 16/1117:32 -

1 stop24h 08m

Mon 23/1108:05 -

1 stop35h 57m

Deal found 2/10£770

Tue 17/1119:20 -

Nonstop8h 15m

Tue 24/1112:30 -

Nonstop9h 05m

Deal found 3/10£778

Fri 13/1120:05 -

Nonstop8h 15m

Fri 20/1113:15 -

Nonstop9h 05m

Deal found 3/10£780

Thu 5/1117:32 -

1 stop35h 58m

Tue 10/1107:25 -

1 stop36h 47m

Deal found 4/10£782

Thu 5/1119:20 -

Nonstop8h 15m

Tue 10/1112:30 -

Nonstop9h 05m

Deal found 4/10£790

Thu 19/1117:35 -

1 stop34h 55m

Wed 25/1118:00 -

1 stop26h 40m

Deal found 3/10£830

Thu 29/1019:20 -

Nonstop8h 15m

Tue 3/1112:30 -

Nonstop9h 05m

Deal found 1/10£839

Thu 29/1016:32 -

1 stop24h 23m

Tue 3/1107:25 -

1 stop36h 47m

Deal found 30/9£843

Fri 13/1117:35 -

2 stops32h 55m

Fri 20/1120:15 -

2 stops48h 25m

Deal found 3/10£849

Wed 18/1117:17 -

1 stop24h 23m

Wed 25/1107:25 -

1 stop36h 37m

Deal found 4/10£862

Thu 19/1115:55 -

1 stop15h 25m

Wed 25/1118:00 -

1 stop24h 55m

Deal found 3/10£873

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 5 October 2026.

Wed 18/1119:20 -

Nonstop8h 15m

Wed 25/1112:30 -

Nonstop9h 05m

Deal found 4/10£766

Fri 13/1117:32 -

1 stop24h 08m

Fri 20/1109:20 -

1 stop31h 29m

Deal found 3/10£782

Thu 19/1117:35 -

2 stops47h 25m

Wed 25/1111:10 -

1 stop33h 30m

Deal found 3/10£834

Thu 19/1117:35 -

2 stops23h 25m

Wed 25/1112:15 -

3 stops32h 25m

Deal found 3/10£899

Thu 29/1019:20 -

Nonstop8h 15m

Tue 3/1112:30 -

Nonstop9h 05m

Deal found 3/10£839

Thu 29/1016:32 -

1 stop24h 23m

Tue 3/1107:25 -

1 stop36h 47m

Deal found 30/9£843

Thu 5/1115:55 -

2 stops25h 05m

Tue 10/1120:05 -

2 stops48h 35m

Deal found 4/10£975

Tue 17/1117:17 -

1 stop24h 23m

Tue 24/1112:20 -

1 stop31h 42m

Deal found 3/10£932

Wed 18/1117:17 -

1 stop24h 23m

Wed 25/1109:00 -

2 stops35h 40m

Deal found 4/10£1,031

Wed 18/1117:17 -

1 stop24h 23m

Wed 25/1107:25 -

1 stop36h 37m

Deal found 4/10£951

Thu 31/1219:20 -

Nonstop8h 15m

Tue 5/112:30 -

Nonstop9h 05m

Deal found 30/9£1,140

Wed 18/1117:17 -

2 stops59h 53m

Wed 25/1117:25 -

2 stops50h 37m

Deal found 4/10£1,073

Thu 15/1016:39 -

1 stop23h 06m

Sun 18/1011:55 -

1 stop32h 39m

Deal found 30/9£1,000

Mon 16/1117:35 -

3 stops33h 35m

Mon 23/1114:50 -

2 stops28h 05m

Deal found 2/10£1,094

Fri 13/1117:32 -

2 stops37h 23m

Fri 20/1111:55 -

2 stops28h 54m

Deal found 3/10£1,130

Tue 17/1117:17 -

2 stops43h 13m

Tue 24/1117:25 -

2 stops50h 37m

Deal found 3/10£1,154

Thu 5/1117:32 -

2 stops34h 38m

Tue 10/1112:30 -

Nonstop9h 05m

Deal found 4/10£1,324

Find flight deals from Saint Lucia to London

Round-trip from	£766
One-way from	£341
Good round-trip deal	£829 or less

British Airways
18/11-25/11
Nonstop
17h 20m total
Saint Lucia to London

Search Deals

JetBlue
14/2-31/12
1 total stop
23h 54m 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 - LHR London Heathrow

UVFLHR

Castries Hewanorra

Mon 15/2

16:51-20:45

1 stop23h 54m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£431

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sun 1/11

15:55-20:35

3 stops48h 40m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£453

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Tue 1/12

15:55-23:45

3 stops51h 50m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£493

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Thu 1/4

14:55-15:40

2 stops43h 45m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£557

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 6/3

17:17-09:10

1 stop35h 53m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£568

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sun 14/2

17:35-07:10

2 stops33h 35m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£580

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Wed 3/3

17:45-07:10

2 stops33h 25m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£581

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sun 7/3

17:45-08:30

1 stop34h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£586

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sun 6/12

15:55-20:35

3 stops48h 40m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£592

Fastest return journey

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Thu 17/12

19:20-07:35

Nonstop8h 15m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£598

Flights are sorted by cheapest return flights first.

Deals found on 4/10

Showing 1-10 of 36 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-LHR

UVF-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-LHR

UVF-LGW

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 £742). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,109). 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

8,244 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sept 2026

LUX - LHR

Cancelled flight extended my travel time by over 10 hours and no one was available to.assist with accommodation during a 15 hour layover.

British Airways

6.7

Okay

8,244 reviews

British Airways

6.7

Okay

8,244 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sept 2026

LUX - LHR

Cancelled flight extended my travel time by over 10 hours and no one was available to.assist with accommodation during a 15 hour layover.

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 JetBlue, British Airways, 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 Gatwick, Castries Hewanorra - London Heathrow or Castries George F. L. Charle - London Gatwick 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 £742). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,109). 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

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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£718	Average£880	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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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.

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Cheap flights from Saint Lucia to London from £341

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/2. 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 5 October 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 5 October 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 5 October 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 5 October 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 5 October 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 5 October 2026.

Last-minute flights from Saint Lucia to LondonDiscover last-minute flight deals from Saint Lucia to London. Data last updated 5 October 2026 and is based on user searches.

Discover last-minute flight deals from Saint Lucia to London. Data last updated 5 October 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 5 October 2026.

Search for one-way flight options from Saint Lucia to London. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

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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 5 October 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 5 October 2026.

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Browse other Saint Lucia and London flight options. Last updated on 5 October 2026.

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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 5 October 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 5 October 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 5 October 2026.

Last-minute flights from Saint Lucia to London
Discover last-minute flight deals from Saint Lucia to London. Data last updated 5 October 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 5 October 2026.