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 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.

£322+ 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 October 2026.

Thu 3/1219:20 -

Nonstop8h 15m

Mon 7/1212:15 -

Nonstop9h 05m

Deal found 16/10£733

Fri 23/1016:39 -

1 stop23h 06m

Fri 20/1109:20 -

1 stop31h 29m

Deal found 16/10£736

Thu 3/1216:55 -

1 stop24h 00m

Mon 7/1208:05 -

1 stop35h 26m

Deal found 16/10£737

Tue 1/1219:20 -

Nonstop8h 15m

Tue 8/1212:30 -

Nonstop9h 05m

Deal found 18/10£742

Thu 3/1219:20 -

Nonstop8h 15m

Thu 10/1212:30 -

Nonstop9h 05m

Deal found 19/10£755

Sun 29/1119:20 -

Nonstop8h 15m

Sun 6/1212:30 -

Nonstop9h 05m

Deal found 15/10£770

Wed 4/1117:32 -

1 stop24h 08m

Wed 25/1107:25 -

1 stop36h 37m

Deal found 15/10£779

Sun 22/1119:20 -

Nonstop8h 15m

Sat 28/1112:30 -

Nonstop9h 05m

Deal found 17/10£780

Mon 23/1119:05 -

Nonstop8h 15m

Sat 28/1112:30 -

Nonstop9h 05m

Deal found 17/10£785

Thu 3/1217:35 -

1 stop32h 55m

Thu 10/1211:10 -

1 stop33h 30m

Deal found 19/10£800

Thu 26/1117:35 -

1 stop32h 55m

Wed 2/1213:00 -

2 stops31h 40m

Deal found 19/10£810

Thu 3/1217:35 -

2 stops47h 25m

Mon 7/1218:40 -

2 stops50h 00m

Deal found 16/10£821

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 October 2026.

Thu 3/1219:20 -

Nonstop8h 15m

Mon 7/1212:15 -

Nonstop9h 05m

Deal found 16/10£733

Thu 3/1216:55 -

1 stop24h 00m

Mon 7/1208:05 -

1 stop35h 26m

Deal found 16/10£737

Thu 3/1217:35 -

2 stops47h 25m

Mon 7/1218:40 -

2 stops50h 00m

Deal found 16/10£821

Sun 27/1217:35 -

1 stop34h 55m

Mon 11/113:45 -

2 stops54h 55m

Deal found 16/10£979

Sat 6/317:17 -

2 stops32h 38m

Fri 12/306:50 -

2 stops34h 17m

Deal found 19/10£989

Sun 29/1119:20 -

Nonstop8h 15m

Sun 6/1212:30 -

Nonstop9h 05m

Deal found 15/10£770

Wed 4/1117:32 -

1 stop24h 08m

Wed 25/1107:25 -

1 stop36h 37m

Deal found 15/10£779

Sat 6/319:20 -

Nonstop8h 15m

Fri 12/313:15 -

Nonstop9h 05m

Deal found 19/10£772

Sun 29/1117:35 -

1 stop34h 55m

Sun 6/1206:00 -

2 stops38h 40m

Deal found 15/10£911

Tue 1/1216:55 -

1 stop36h 35m

Tue 8/1212:20 -

1 stop31h 11m

Deal found 18/10£855

Thu 3/1216:55 -

2 stops36h 15m

Thu 10/1217:25 -

2 stops46h 49m

Deal found 19/10£971

Sun 15/1119:20 -

Nonstop8h 15m

Sun 22/1112:30 -

Nonstop9h 05m

Deal found 18/10£886

Sun 15/1117:32 -

1 stop24h 08m

Sun 22/1112:20 -

1 stop31h 42m

Deal found 18/10£982

Sun 15/1117:35 -

2 stops32h 55m

Sun 22/1113:40 -

3 stops31h 00m

Deal found 18/10£989

Sun 27/1213:35 -

2 stops39h 35m

Mon 11/110:05 -

2 stops33h 29m

Deal found 16/10£1,025

Sun 22/1117:27 -

2 stops43h 03m

Sat 28/1110:05 -

2 stops33h 57m

Deal found 17/10£1,041

Thu 3/1216:55 -

2 stops36h 15m

Mon 7/1210:05 -

2 stops33h 26m

Deal found 16/10£1,175

Tue 1/1216:55 -

2 stops36h 15m

Tue 8/1206:30 -

2 stops37h 01m

Deal found 18/10£1,187

Sun 15/1115:55 -

2 stops19h 50m

Sun 22/1110:40 -

3 stops34h 00m

Deal found 18/10£1,231

Find flight deals from Saint Lucia to London

Round-trip from	£733
One-way from	£337

British Airways
3/12-7/12
Nonstop
17h 20m total
Saint Lucia to London

Search Deals

JetBlue
4/11-31/12
1 total stop
24h 08m 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

£322

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Fri 12/2

17:05-09:30

1 stop36h 25m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£374

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Wed 31/3

15:49-20:45

1 stop23h 56m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£376

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 14/11

15:50-17:30

2 stops45h 40m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£426

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Mon 30/11

17:32-21:40

1 stop24h 08m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£430

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

£434

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Tue 24/11

17:22-09:30

1 stop36h 08m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£449

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Sun 22/11

15:40-10:35

3 stops38h 55m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£450

CastriesLondon

UVF Castries Hewanorra - LGW London Gatwick

UVFLGW

Castries Hewanorra

Tue 24/11

15:55-09:45

1 stop37h 50m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£460

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 24/10

14:35-11:50

2 stops40h 15m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£566

Flights are sorted by cheapest return flights first.

Deals found on 19/10

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-LGW

UVF-LHR

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

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 £737). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,102). 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

8,266 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

8,266 reviews

British Airways

6.7

Okay

8,266 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 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 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 £737). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,102). 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

Luton

Milton Keynes

Slough

Gatwick

Wembley

Hayes

Ilford

Croydon

Colchester

Barnet

Eastbourne

Brentford

Southend-on-Sea

Enfield

Southall

Watford

Kingston upon Thames

Dagenham

Dover

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

Top destinations

Alternative routes for Saint Lucia to London

Luis Munoz Marin Intl to Heathrow flights

Nassau to Heathrow flights

Bridgetown to Heathrow flights

Luis Munoz Marin Intl to Gatwick flights

Bridgetown to Gatwick flights

Port of Spain to Heathrow flights

Nassau to Gatwick flights

St. George's to Heathrow flights

Montego Bay to Heathrow flights

Port of Spain to Gatwick flights

Santo Domingo to Heathrow flights

St. George's to Gatwick flights

Bridgetown to London City flights

Montego Bay to Gatwick flights

Punta Cana to Gatwick flights

Santo Domingo to Gatwick flights

George Town to Heathrow flights

Punta Cana to Heathrow flights

Nassau to Stansted flights

Kingston to Heathrow flights

George Town to Gatwick flights

Port of Spain to Stansted flights

Kingstown to Gatwick flights

Kingston to Gatwick flights

Castries to Gatwick flights

Simpson Bay to Heathrow flights

Montego Bay to London City flights

St. John's to Gatwick flights

Castries to Heathrow flights

St. John's to Heathrow flights

Luis Munoz Marin Intl to Edinburgh flights

Montego Bay to Luton flights

Havana to Heathrow flights

Providenciales to Heathrow flights

Bridgetown to Manchester flights

Kingston to Stansted flights

Top airline flying from Saint Lucia to London

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£711	Average£873	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 £322

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 19 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 19 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 19 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 19 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 19 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 19 October 2026.

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

Discover last-minute flight deals from Saint Lucia to London. Data last updated 19 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 19 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 19 October 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 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?

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 19 October 2026.

Saint Lucia and London flights

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

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Saint Lucia to London flights

Consider these flights travelling from Saint Lucia to London.

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 19 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 19 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 19 October 2026.

Last-minute flights from Saint Lucia to London
Discover last-minute flight deals from Saint Lucia to London. Data last updated 19 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 19 October 2026.