Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Saint Lucia to London from £344

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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
UVF — LON
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Saint Lucia to London

Enter your travel dates to find the best prices.

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 13 May 2026.

Sun 20/920:25
UVF
-
LGW
Nonstop8h 25m
British Airways
Sun 4/1011:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 10/5£737
Fri 25/920:45
UVF
-
LGW
Nonstop8h 25m
British Airways
Sat 3/1011:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 10/5£751
Sun 6/920:25
UVF
-
LGW
Nonstop8h 25m
British Airways
Sun 20/911:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Deal found 10/5£757
Sat 6/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Sun 21/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 12/5£822
Sat 6/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Sat 13/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 12/5£822
Fri 21/820:45
UVF
-
LGW
Nonstop8h 25m
British Airways
Fri 11/911:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Deal found 10/5£825
Fri 24/720:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Fri 21/811:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Deal found 9/5£827
Fri 17/720:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Fri 31/711:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 10/5£889
Tue 18/815:15
UVF
-
LHR
1 stop34h 20m
Air Canada
Wed 16/908:40
LHR
-
UVF
2 stops58h 35m
Air Canada
Deal found 10/5£895
Sun 7/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Sun 28/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 11/5£904
Tue 18/815:15
UVF
-
LHR
2 stops36h 20m
Air Canada
Thu 17/909:30
LHR
-
UVF
2 stops33h 45m
Air Canada
Deal found 12/5£906
Fri 21/815:15
UVF
-
LHR
1 stop34h 20m
Air Canada
Wed 9/914:10
LHR
-
UVF
2 stops53h 05m
Air Canada
Deal found 10/5£910

Find flight deals from Saint Lucia to London

Keep the following information in mind while searching for Saint Lucia to London flight deals. Data was last updated 13 May 2026.

Round-trip from

£737

One-way from

£344

Good round-trip deal

£857 or less

Good one-way deal

£582 or less
British Airways
  • British Airways
  • 20/9-4/10
  • Nonstop
  • 17h 15m total
  • Saint Lucia to London
Search Deals
7/6
  • 7/6
  • 3 total stops
  • 36h 25m total
  • Saint Lucia to London
Search Deals
Price to beat on a round-trip flight from Saint Lucia to London (LON).
Search Deals
Price to beat on a one-way flight from Saint Lucia to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Saint Lucia to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 May 2026.
Use the filters below to find and compare flights from Saint Lucia to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 25/9

20:45-10:10

Nonstop8h 25m

London Gatwick

Sat 3/10

11:15-15:05

Nonstop8h 50m

£751
Fastest return journey

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 21/8

20:45-10:10

Nonstop8h 25m

London Gatwick

Fri 18/9

11:15-15:00

Nonstop8h 45m

£822

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 17/7

20:50-10:10

Nonstop8h 20m

London Gatwick

Fri 31/7

11:15-15:05

Nonstop8h 50m

£899

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Sun 7/6

20:30-09:50

Nonstop8h 20m

London Gatwick

Sun 28/6

11:15-15:05

Nonstop8h 50m

£904

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Tue 2/6

20:30-09:50

Nonstop8h 20m

London Gatwick

Sat 6/6

11:15-15:05

Nonstop8h 50m

£966

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Sun 19/7

14:30-10:45

1 stop15h 15m

London Gatwick

Fri 7/8

21:20-13:40

2 stops45h 20m

£1,041

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Sun 23/8

14:30-07:55

1 stop36h 25m

London Gatwick

Sat 19/9

12:40-13:40

1 stop30h 00m

£1,053

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 17/7

15:05-08:35

2 stops36h 30m

London Heathrow

Thu 6/8

09:30-14:20

2 stops33h 50m

£1,066

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 17/7

16:05-05:05

2 stops56h 00m

London Gatwick

Fri 31/7

11:15-15:05

Nonstop8h 50m

£1,123

CastriesLondon

SLU - LGW

SLULGW

Castries George F. L. Charle

Sat 23/5

17:50-10:45

2 stops35h 55m

London Gatwick

Tue 2/6

08:50-09:30

3 stops29h 40m

£1,135

Flights are sorted by cheapest return flights first.

Deals found on 11/5

Showing 1-10 of 53 resultsSorted by cheapest first
1
2
3
...
6

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.
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

How far ahead should I book a flight from Saint Lucia to London?

The best time to book flights from Saint Lucia to London is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Saint Lucia to London?

Currently, June is the cheapest month in which you can book a flight from Saint Lucia to London (average of £376). Flying from Saint Lucia to London in January is currently the most expensive (average of £752). 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?

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 13 May 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

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 13 May 2026.
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
7,975 reviews
Check prices

Comfort

6.8

Crew

7.7

Food

6.4

Boarding

6.9

Entertainment

6.4

Overall

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2026

NCE - LHR

I was transferred to AA airlines with seating far away from my wif.
British Airways
6.7
Okay
7,975 reviews
British Airways
6.7
Okay
7,975 reviews
Check prices

Comfort

6.8

Crew

7.7

Food

6.4

Boarding

6.9

Entertainment

6.4

Overall

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2026

NCE - LHR

I was transferred to AA airlines with seating far away from my wif.

Related info for your journey

Find useful and relevant information for your journey from Saint Lucia to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 25m. Fly via British Airways, Air Canada, or United Airlines 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 Hewanorra - London City 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, June is the cheapest month in which you can book a flight from Saint Lucia to London (average of £376). Flying from Saint Lucia to London in January is currently the most expensive (average of £752). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Hounslow
Croydon
Wembley
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Southall
Chelmsford

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.

Top airline flying from Saint Lucia to London

Discover the top airline that operate flights from Saint Lucia to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£671Average£855FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.