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Cheap flights from London to Saint Lucia from £288

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 30/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — UVF
9 Jul — 16 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Saint Lucia

Enter your travel dates to find the best prices.

Cheapest flights from London to Saint Lucia
Explore the most affordable flight options available from London to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 June 2026.

Fri 19/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Fri 3/720:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 8/6£613
Tue 16/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Tue 23/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 9/6£617
Sat 13/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sat 20/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 6/6£618
Fri 3/711:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Fri 10/720:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 8/6£619
Fri 3/711:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sun 5/720:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 7/6£627
Fri 3/711:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sat 11/720:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 6/6£633
Sun 21/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sun 5/720:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 4/6£636
Tue 1/911:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Thu 17/922:00
UVF
-
LGW
Nonstop8h 25m
British Airways
Deal found 9/6£644
Mon 22/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Mon 29/622:05
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 6/6£646
Sun 16/811:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Sun 23/820:25
UVF
-
LGW
Nonstop8h 25m
British Airways
Deal found 6/6£650
Fri 19/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Fri 10/720:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 8/6£654
Thu 3/910:45
LHR
-
SLU
1 stop13h 15m
Multiple Airlines
Thu 17/912:35
SLU
-
LHR
1 stop12h 15m
Multiple Airlines
Deal found 9/6£659

Find flight deals from London to Saint Lucia

Keep the following information in mind while searching for London to Saint Lucia flight deals. Data was last updated 9 June 2026.

Round-trip from

£612

One-way from

£288

Good round-trip deal

£617 or less

Good one-way deal

£493 or less
British Airways
  • British Airways
  • 7/7-20/7
  • Nonstop
  • 17h 10m total
  • London to Saint Lucia
Search Deals
30/6
  • 30/6
  • 3 total stops
  • 46h 05m total
  • London to Saint Lucia
Search Deals
Price to beat on a round-trip flight from London (LON) to Saint Lucia.
Search Deals
Price to beat on a one-way flight from London (LON) to Saint Lucia.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Saint Lucia 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 9 June 2026.
Use the filters below to find and compare flights from London to Saint Lucia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 21/9

16:20-14:08

2 stops26h 48m

Castries Hewanorra

Sat 3/10

15:33-13:15

1 stop16h 42m

£737

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 23/11

12:30-15:10

1 stop30h 40m

Castries Hewanorra

Wed 2/12

16:25-06:50

2 stops34h 25m

£740

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 22/11

12:30-15:10

1 stop30h 40m

Castries Hewanorra

Wed 2/12

16:25-06:50

2 stops34h 25m

£740

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 22/11

16:50-15:10

2 stops50h 20m

Castries Hewanorra

Fri 4/12

16:25-09:00

1 stop36h 35m

£740

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 29/9

20:05-14:08

2 stops23h 03m

Castries Hewanorra

Mon 5/10

15:33-13:15

1 stop16h 42m

£741

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 5/10

15:15-14:26

1 stop28h 11m

Castries Hewanorra

Mon 12/10

15:41-13:15

1 stop16h 34m

£771
Fastest return journey

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 11/8

11:15-15:00

Nonstop8h 45m

Castries Hewanorra

Thu 20/8

22:00-11:25

Nonstop8h 25m

£781

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Wed 23/9

10:25-14:08

2 stops56h 43m

Castries Hewanorra

Mon 5/10

15:33-09:25

2 stops36h 52m

£818

LondonCastries

LCY - UVF

LCYUVF

London City

Wed 23/9

09:20-14:08

2 stops57h 48m

Castries Hewanorra

Thu 8/10

15:41-11:40

2 stops38h 59m

£833

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sat 21/11

10:05-19:00

1 stop12h 55m

Castries George F. L. Charle

Wed 2/12

15:45-09:05

1 stop13h 20m

£862

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from London to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from London 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 London to Saint Lucia

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

Currently, September is the cheapest month in which you can book a flight from London to Saint Lucia (average of £307). Flying from London to Saint Lucia in December is currently the most expensive (average of £545). 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 LON to LC?

Find hourly flight availability from London to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 June 2026.

When flying from London to Saint Lucia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from London to Saint Lucia delayed?

About 23% of weekly flights between London and Saint Lucia have experienced delays in the past year, with the average delay time being 115 minutes.

What is the most punctual flight time for London to Saint Lucia flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Saint Lucia flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 22% of flights being delayed.

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

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Saint Lucia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Saint Lucia

Get insights into the airlines that provide service to Saint Lucia. 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 Saint Lucia. Reviews last updated 9 June 2026.
Read through reviews of airlines operating flights from London to Saint Lucia, such as Finnair,American Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.7
Good
1,405 reviews
Check prices

Overall

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
Finnair
7.7
Good
1,405 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Overall

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
American Airlines
7.1
Good
11,644 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Overall

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
Air Canada
7.1
Good
11,149 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Overall

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
JetBlue
7.1
Good
2,980 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Overall

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
British Airways
6.7
Okay
8,031 reviews
Finnair
7.7
Good
1,405 reviews
Check prices

Overall

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

Related info for your journey

Find useful and relevant information for your journey from London to Saint Lucia. 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 London to Saint Lucia?

    For as low as £781, Delta can have you in Saint Lucia from London in 8h 45m. The distance between London and Saint Lucia is about 4223 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from London to Saint Lucia?

    The most popular route from London to Saint Lucia is London Heathrow - Castries Hewanorra. You may also consider London Gatwick - Castries Hewanorra or London Heathrow - Castries George F. L. Charle.

  • Can I find deals for flights from London to Saint Lucia that include hotel bookings?

    Yes. In addition to deals on London to Saint Lucia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Saint Lucia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Saint Lucia.

  • Can I find deals for business class flights from London to Saint Lucia?

    Yes. Cheapflights offers flight deals from London to Saint Lucia 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 London to Saint Lucia?

    Currently, September is the cheapest month in which you can book a flight from London to Saint Lucia (average of £307). Flying from London to Saint Lucia in December is currently the most expensive (average of £545). 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

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 London to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
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Gatwick to Willemstad flights
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Manchester to Montego Bay flights
Heathrow to Luis Munoz Marin Intl flights
London City to Castries flights
Stansted to Santo Domingo flights
Heathrow to Simpson Bay flights
Gatwick to Luis Munoz Marin Intl flights
Heathrow to Pointe-à-Pitre flights
Heathrow to Scarborough flights
Stansted to Port of Spain flights
Gatwick to Scarborough flights
Heathrow to Oranjestad flights
Birmingham to Montego Bay flights
Heathrow to George Town flights

Top 6 airlines flying from London to Saint Lucia

Discover the top 6 airlines that operate flights from London to Saint Lucia. 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 9 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£504Average£790FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapest£537Average£841FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£640Average£783FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£697Average£915FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£713Average£968FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£1,167Average£1,550FlexibilityNo cancel feeOn-time75%
Search KLM 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 London to Saint Lucia?

Cheapflights helps you search for flights from London to Saint Lucia 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 London to Saint Lucia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Saint Lucia from London.

Can Cheapflights find flights from London to Saint Lucia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Saint Lucia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Saint Lucia become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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