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 20m. 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 Gatwick, Castries Hewanorra - London Heathrow 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.

£317+ 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 30 October 2026.

Fri 4/1220:05 -

Nonstop8h 15m

Tue 8/1212:30 -

Nonstop9h 05m

Deal found 28/10£760

Fri 4/1216:55 -

1 stop36h 35m

Tue 8/1207:25 -

1 stop36h 06m

Deal found 28/10£777

Mon 26/1016:32 -

1 stop25h 08m

Sun 1/1107:45 -

1 stop36h 27m

Deal found 26/10£793

Sat 28/1117:31 -

1 stop23h 24m

Sat 5/1208:05 -

1 stop35h 26m

Deal found 29/10£794

Sat 7/1119:20 -

Nonstop8h 15m

Wed 2/1212:30 -

Nonstop9h 05m

Deal found 28/10£809

Wed 25/1119:20 -

Nonstop8h 15m

Wed 2/1212:30 -

Nonstop9h 05m

Deal found 28/10£822

Wed 4/1119:20 -

Nonstop8h 15m

Wed 11/1112:30 -

Nonstop9h 05m

Deal found 28/10£825

Sun 20/1219:20 -

Nonstop8h 15m

Thu 31/1212:30 -

Nonstop9h 05m

Deal found 25/10£825

Sat 28/1119:20 -

Nonstop8h 15m

Sat 5/1212:30 -

Nonstop9h 05m

Deal found 29/10£826

Fri 4/1217:35 -

2 stops23h 25m

Tue 8/1211:10 -

1 stop33h 30m

Deal found 28/10£830

Thu 29/1016:32 -

1 stop24h 23m

Sun 1/1107:45 -

1 stop36h 27m

Deal found 29/10£839

Fri 20/1120:05 -

Nonstop8h 15m

Mon 30/1112:15 -

Nonstop9h 05m

Deal found 25/10£848

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 30 October 2026.

Fri 16/418:35 -

Nonstop8h 20m

Tue 27/413:00 -

Nonstop8h 50m

Deal found 29/10£766

Fri 4/1216:55 -

1 stop36h 35m

Thu 10/1207:25 -

1 stop36h 06m

Deal found 27/10£793

Fri 4/1217:35 -

2 stops23h 25m

Tue 8/1213:00 -

2 stops31h 40m

Deal found 28/10£849

Fri 20/1117:35 -

2 stops33h 35m

Mon 30/1116:30 -

2 stops52h 10m

Deal found 25/10£888

Sat 28/1117:31 -

1 stop23h 24m

Sat 5/1208:05 -

1 stop35h 26m

Deal found 29/10£794

Wed 25/1119:20 -

Nonstop8h 15m

Wed 2/1212:30 -

Nonstop9h 05m

Deal found 28/10£822

Fri 4/1217:35 -

2 stops23h 25m

Thu 10/1218:00 -

1 stop26h 40m

Deal found 27/10£852

Sat 28/1119:20 -

Nonstop8h 15m

Sat 5/1212:30 -

Nonstop9h 05m

Deal found 29/10£826

Fri 4/1216:55 -

2 stops43h 35m

Thu 10/1210:05 -

2 stops55h 53m

Deal found 27/10£939

Wed 25/1117:22 -

1 stop36h 08m

Wed 2/1212:20 -

1 stop31h 11m

Deal found 28/10£905

Fri 4/1216:55 -

2 stops43h 35m

Tue 8/1206:30 -

2 stops37h 01m

Deal found 28/10£958

Thu 10/1217:35 -

1 stop34h 55m

Thu 17/1211:10 -

1 stop33h 30m

Deal found 26/10£998

Fri 27/1120:05 -

Nonstop8h 15m

Sun 13/1212:30 -

Nonstop9h 05m

Deal found 29/10£955

Fri 12/217:05 -

2 stops25h 30m

Sat 20/206:30 -

2 stops35h 34m

Deal found 29/10£960

Sat 28/1117:31 -

1 stop23h 24m

Sat 5/1207:50 -

2 stops35h 41m

Deal found 29/10£967

Fri 27/1117:35 -

1 stop34h 55m

Sun 13/1215:00 -

1 stop29h 40m

Deal found 29/10£1,071

Fri 12/217:05 -

2 stops43h 15m

Sat 20/206:25 -

2 stops35h 39m

Deal found 29/10£993

Fri 4/1217:35 -

3 stops34h 30m

Tue 8/1208:50 -

3 stops35h 50m

Deal found 28/10£1,043

Wed 25/1117:22 -

2 stops35h 48m

Wed 2/1210:05 -

2 stops57h 26m

Deal found 28/10£1,090

Sat 28/1115:40 -

1 stop38h 05m

Sat 5/1211:40 -

1 stop31h 15m

Deal found 29/10£1,127

Fri 20/1117:22 -

2 stops43h 08m

Mon 30/1110:05 -

2 stops57h 26m

Deal found 25/10£1,169

Fri 27/1117:35 -

2 stops44h 15m

Sun 13/1208:40 -

2 stops36h 00m

Deal found 29/10£1,230

Find flight deals from Saint Lucia to London

Round-trip from	£757
One-way from	£317

British Airways
12/2-20/2
Nonstop
17h 20m total
Saint Lucia to London

Search Deals

JetBlue
14/11-31/12
1 total stop
35h 20m total
Saint Lucia to London

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 14/11

15:35-06:55

1 stop35h 20m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£317

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Wed 9/12

16:55-21:40

1 stop24h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£404

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 7/11

17:25-20:55

1 stop23h 30m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£409

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sat 14/11

15:50-15:45

2 stops43h 55m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£458

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Wed 9/12

17:35-07:10

3 stops33h 35m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£534

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Wed 3/3

17:45-06:30

1 stop32h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£569

Fastest return journey

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Wed 3/3

19:20-07:35

Nonstop8h 15m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£577

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sat 14/11

19:20-07:35

Nonstop8h 15m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£582

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Wed 9/12

19:20-07:35

Nonstop8h 15m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£586

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 14/11

15:35-16:20

2 stops44h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£599

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 40 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 £734). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,096). 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

8,275 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Oct 2026

MRS - LHR

Attendants didn't let me board with my fragile guitar so I had to check it in. Who knows what the freezing icicles did to it. Was not happy. Had to run to catch my connection in Heathrow after riding one bus and another train? Then, the fellow next to me asked if I would switch my window seat with his girlfriend who had a middle seat. What nerve! I said no. The food was unhealthy and the seats were cramped. Could not wait to exit.

British Airways

6.7

Okay

8,275 reviews

British Airways

6.7

Okay

8,275 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Oct 2026

MRS - 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 20m. 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 Gatwick, Castries Hewanorra - London Heathrow 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 £734). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,096). 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£708	Average£870	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 £317

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. 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 30 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 30 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 30 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 30 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 30 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 30 October 2026.

Last-minute flights from Saint Lucia to LondonDiscover last-minute flight deals from Saint Lucia to London. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Saint Lucia to London. Data last updated 30 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 30 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 30 October 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 30 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 30 October 2026.

Saint Lucia and London flights

Browse other Saint Lucia and London flight options. Last updated on 30 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 30 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 30 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 30 October 2026.

Last-minute flights from Saint Lucia to London
Discover last-minute flight deals from Saint Lucia to London. Data last updated 30 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 30 October 2026.