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 KLM 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 George F. L. Charle - London Heathrow or Castries Hewanorra - 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.

£280+ 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 6 September 2026.

Mon 19/1022:05 -

Nonstop8h 20m

Mon 26/1012:15 -

Nonstop9h 05m

Deal found 4/9£739

Tue 10/1115:55 -

1 stop37h 50m

Tue 8/1216:35 -

2 stops50h 20m

Deal found 4/9£744

Tue 10/1119:20 -

Nonstop8h 15m

Tue 8/1212:30 -

Nonstop9h 05m

Deal found 4/9£761

Sat 28/1119:20 -

Nonstop8h 15m

Tue 22/1212:30 -

Nonstop9h 05m

Deal found 5/9£772

Mon 19/1016:39 -

1 stop35h 51m

Mon 26/1008:05 -

1 stop35h 07m

Deal found 4/9£794

Fri 25/920:45 -

Nonstop8h 25m

Sat 3/1011:15 -

Nonstop8h 50m

Deal found 1/9£809

Wed 23/916:39 -

1 stop23h 06m

Wed 30/911:55 -

1 stop32h 39m

Deal found 5/9£821

Fri 25/916:39 -

1 stop23h 06m

Sat 3/1008:15 -

1 stop36h 19m

Deal found 2/9£841

Sun 25/1014:55 -

2 stops27h 45m

Fri 30/1013:00 -

2 stops55h 40m

Deal found 5/9£885

Mon 5/1016:39 -

1 stop23h 06m

Mon 12/1008:15 -

1 stop36h 19m

Deal found 5/9£897

Sun 25/1015:45 -

1 stop12h 10m

Fri 30/1008:00 -

1 stop15h 00m

Deal found 5/9£918

Sun 25/1015:45 -

1 stop13h 20m

Fri 30/1010:05 -

1 stop30h 00m

Deal found 5/9£986

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 6 September 2026.

Tue 10/1119:20 -

Nonstop8h 15m

Tue 8/1212:30 -

Nonstop9h 05m

Deal found 4/9£761

Wed 23/916:39 -

1 stop23h 06m

Wed 30/911:55 -

1 stop32h 39m

Deal found 5/9£821

Sun 25/1015:45 -

1 stop12h 10m

Fri 30/1008:00 -

1 stop15h 00m

Deal found 5/9£918

Sun 25/1016:40 -

1 stop14h 40m

Fri 30/1007:50 -

2 stops60h 50m

Deal found 5/9£1,027

Mon 19/1015:32 -

1 stop14h 48m

Mon 26/1010:50 -

1 stop31h 22m

Deal found 1/9£1,103

Fri 25/920:45 -

Nonstop8h 25m

Sat 3/1011:15 -

Nonstop8h 50m

Deal found 1/9£809

Fri 25/916:39 -

1 stop23h 06m

Sat 3/1008:15 -

1 stop36h 19m

Deal found 2/9£854

Mon 19/1016:39 -

2 stops36h 16m

Mon 26/1006:30 -

2 stops36h 42m

Deal found 3/9£951

Sun 18/1016:39 -

2 stops48h 46m

Sun 25/1017:25 -

2 stops49h 47m

Deal found 3/9£972

Mon 19/1015:32 -

2 stops20h 08m

Mon 26/1010:00 -

2 stops32h 12m

Deal found 4/9£1,135

Mon 5/1016:39 -

2 stops48h 46m

Mon 12/1011:20 -

2 stops33h 14m

Deal found 5/9£974

Mon 19/1016:39 -

2 stops47h 26m

Mon 26/1011:20 -

2 stops31h 52m

Deal found 1/9£985

Sun 25/1015:45 -

1 stop13h 20m

Fri 30/1010:05 -

1 stop30h 00m

Deal found 5/9£986

Wed 27/112:35 -

1 stop13h 15m

Wed 3/213:25 -

1 stop26h 40m

Deal found 5/9£1,050

Fri 25/920:45 -

Nonstop8h 25m

Sat 3/1010:45 -

2 stops31h 55m

Deal found 2/9£1,051

Fri 25/916:39 -

2 stops36h 11m

Sat 3/1011:20 -

2 stops57h 13m

Deal found 5/9£1,105

Wed 14/1015:45 -

1 stop12h 35m

Wed 21/1012:55 -

1 stop31h 20m

Deal found 1/9£1,106

Wed 23/916:39 -

2 stops47h 26m

Wed 30/916:45 -

2 stops51h 49m

Deal found 5/9£1,125

Sun 25/1016:32 -

2 stops36h 08m

Fri 30/1013:30 -

2 stops27h 23m

Deal found 5/9£1,147

Sat 28/1117:31 -

2 stops35h 09m

Tue 22/1209:15 -

2 stops34h 27m

Deal found 5/9£2,412

Find flight deals from Saint Lucia to London

Round-trip from	£739
One-way from	£280

British Airways
19/10-26/10
Nonstop
17h 25m total
Saint Lucia to London

Search Deals

4/10-31/12
2 total stops
36h 25m total
Saint Lucia to London

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sun 4/10

14:30-07:55

2 stops36h 25m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£282

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sat 5/12

15:50-20:35

3 stops48h 45m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£368

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 12/12

15:50-12:50

2 stops41h 00m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£375

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Tue 3/11

15:55-19:05

3 stops47h 10m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£391

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 12/12

13:35-09:30

1 stop15h 55m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£393

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sun 13/12

16:55-21:40

1 stop24h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£408

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

£425

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Wed 20/1

17:40-07:10

3 stops33h 30m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£454

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sun 13/12

17:40-07:10

3 stops33h 30m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£460

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Thu 29/10

14:55-09:45

2 stops38h 50m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£469

Flights are sorted by cheapest return flights first.

Deals found on 5/9

Showing 1-10 of 49 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

SLU-LHR

UVF-LCY

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

SLU-LHR

UVF-LCY

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 £720). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,087). 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

8,209 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

8,209 reviews

British Airways

6.7

Okay

8,209 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 KLM 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 George F. L. Charle - London Heathrow or Castries Hewanorra - 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 £720). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,087). 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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Providenciales to Heathrow flights

Top airline flying from Saint Lucia to London

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£704	Average£868	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 £280

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/10. 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 6 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 6 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 6 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 6 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 6 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 6 September 2026.

Last-minute flights from Saint Lucia to LondonDiscover last-minute flight deals from Saint Lucia to London. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from Saint Lucia to London. Data last updated 6 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 6 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 6 September 2026.

Find flight deals from Saint Lucia to London

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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 6 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 6 September 2026.

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Browse other Saint Lucia and London flight options. Last updated on 6 September 2026.

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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 6 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 6 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 6 September 2026.

Last-minute flights from Saint Lucia to London
Discover last-minute flight deals from Saint Lucia to London. Data last updated 6 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 6 September 2026.