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Cheap flights from the United Kingdom to Saint Lucia from £306

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 19/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — UVF
10 May — 17 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Saint Lucia

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Saint Lucia
Explore the most affordable flight options available from United Kingdom to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 April 2026.

Thu 18/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sat 4/720:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 5/4£616
Thu 11/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Fri 19/620:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 6/4£619
Tue 10/1112:20
LHR
-
UVF
1 stop31h 49m
JetBlue
Thu 26/1117:01
UVF
-
LHR
1 stop23h 44m
JetBlue
Deal found 9/4£625
Tue 19/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Sun 7/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 7/4£627
Fri 26/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Fri 26/620:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 9/4£628
Sat 9/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Fri 22/520:55
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 6/4£629
Tue 1/911:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Mon 14/922:00
UVF
-
LGW
Nonstop8h 25m
British Airways
Deal found 5/4£631
Fri 5/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sat 13/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 8/4£640
Fri 15/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Sun 17/520:35
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 6/4£643
Sun 10/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Sun 17/520:35
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 5/4£644
Thu 19/1112:30
LGW
-
UVF
Nonstop9h 05m
British Airways
Fri 27/1120:05
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 8/4£646
Thu 29/1012:30
LGW
-
UVF
Nonstop9h 05m
British Airways
Sat 14/1119:20
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 7/4£646

Find flight deals from United Kingdom to Saint Lucia

Keep the following information in mind while searching for United Kingdom to Saint Lucia flight deals. Data was last updated 10 April 2026.

Round-trip from

£616

One-way from

£306

Popular in

August

Cheapest in

November

Good round-trip deal

£675 or less

Good one-way deal

£607 or less
British Airways
  • British Airways
  • 18/6-4/7
  • Nonstop
  • 17h 10m total
  • United Kingdom to Saint Lucia
Search Deals
19/4
  • 19/4
  • 3 total stops
  • 45h 41m total
  • United Kingdom to Saint Lucia
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£127 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease (£56 potential savings vs. average return price).
Search Deals
Price to beat on a round-trip flight from United Kingdom to Saint Lucia.
Search Deals
Price to beat on a one-way flight from United Kingdom to Saint Lucia.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 10 April 2026.
Use the filters below to find and compare flights from the United Kingdom 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

Tue 1/9

18:55-14:08

2 stops24h 13m

Castries Hewanorra

Mon 14/9

15:38-13:15

1 stop16h 37m

£727

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 20/4

15:15-14:02

1 stop27h 47m

Castries Hewanorra

Fri 24/4

15:22-06:25

1 stop34h 03m

£737
Fastest return journey

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sat 9/5

11:15-15:10

Nonstop8h 55m

Castries Hewanorra

Sun 24/5

20:35-09:50

Nonstop8h 15m

£742

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Tue 18/8

11:10-19:00

1 stop12h 50m

Castries George F. L. Charle

Sun 6/9

12:35-06:15

1 stop12h 40m

£850

EdinburghCastries

EDI - UVF

EDIUVF

Edinburgh Turnhouse

Fri 22/5

23:55-13:40

3 stops42h 45m

Castries Hewanorra

Fri 29/5

15:05-08:05

2 stops36h 00m

£859

ManchesterCastries

MAN - UVF

MANUVF

Manchester

Tue 29/9

09:30-13:50

2 stops33h 20m

Castries Hewanorra

Tue 6/10

14:20-19:00

2 stops23h 40m

£861

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 15/6

11:10-19:00

1 stop12h 50m

Castries George F. L. Charle

Mon 22/6

12:35-06:15

1 stop12h 40m

£879

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 3/5

20:05-14:02

2 stops46h 57m

Castries Hewanorra

Tue 2/6

15:25-13:15

1 stop16h 50m

£880

ManchesterCastries

MAN - UVF

MANUVF

Manchester

Thu 7/5

14:00-14:26

2 stops29h 26m

Castries Hewanorra

Thu 14/5

14:45-21:55

2 stops26h 10m

£893

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 11/5

09:40-14:05

2 stops33h 25m

Castries Hewanorra

Thu 21/5

15:25-13:15

1 stop16h 50m

£894

Flights are sorted by cheapest return flights first.

Deals found on 5/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from United Kingdom to Saint Lucia

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

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

Currently, May is the cheapest month in which you can book a flight from United Kingdom to Saint Lucia (average of £372). Flying from United Kingdom to Saint Lucia in December is currently the most expensive (average of £699). 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 GB to LC?

Find hourly flight availability from United Kingdom 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 10 April 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Saint Lucia as you normally would.

How often are flights from the United Kingdom to Saint Lucia delayed?

About 22% of weekly flights between United Kingdom and Saint Lucia have experienced delays in the past year, with the average delay time being 114 minutes.

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

Historically, flights departing in the early afternoon 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?

Thursday 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 the United Kingdom to Saint Lucia flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 21% of flights being delayed.

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 10 April 2026.
Read through reviews of airlines operating flights from the United Kingdom to Saint Lucia, such as Finnair,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.7
Good
1,383 reviews
Check prices

Overall

7.7

Crew

8.2

Food

6.7

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.7
Good
1,383 reviews
Finnair
7.7
Good
1,383 reviews
Check prices

Overall

7.7

Crew

8.2

Food

6.7

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
JetBlue
7.2
Good
2,928 reviews
Finnair
7.7
Good
1,383 reviews
Check prices

Overall

7.7

Crew

8.2

Food

6.7

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
American Airlines
7.1
Good
11,564 reviews
Finnair
7.7
Good
1,383 reviews
Check prices

Overall

7.7

Crew

8.2

Food

6.7

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Air Canada
7.1
Good
10,915 reviews
Finnair
7.7
Good
1,383 reviews
Check prices

Overall

7.7

Crew

8.2

Food

6.7

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
7,870 reviews
Finnair
7.7
Good
1,383 reviews
Check prices

Overall

7.7

Crew

8.2

Food

6.7

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom to Saint Lucia?

    Delta, British Airways, and American Airlines can get you from United Kingdom to Saint Lucia in just under 8h 55m. Your travel time can differ by up to 20h 31m. There are 4223 mi between United Kingdom and Saint Lucia. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Saint Lucia?

    Currently, May is the cheapest month in which you can book a flight from United Kingdom to Saint Lucia (average of £372). Flying from United Kingdom to Saint Lucia in December is currently the most expensive (average of £699). 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

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Alternative routes for United Kingdom to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Bridgetown flights
Heathrow to Montego Bay flights
Heathrow to Kingston flights
Gatwick to Punta Cana flights
Heathrow to Punta Cana flights
Gatwick to Bridgetown flights
Stansted to Montego Bay flights
Stansted to Bridgetown flights
Stansted to Kingston flights
Gatwick to Kingston flights
Heathrow to Nassau flights
Stansted to Punta Cana flights
London City to Kingston flights
London City to Montego Bay flights
Heathrow to Castries flights
Heathrow to St. George's flights
Luton to Punta Cana flights
Luton to Montego Bay flights
London City to Bridgetown flights
Heathrow to Santo Domingo flights
London City to Punta Cana flights
Heathrow to St. John's flights
Manchester to Bridgetown flights
Gatwick to Santo Domingo flights
Gatwick to Castries flights
Heathrow to Port of Spain flights
Gatwick to Nassau flights
Gatwick to Montego Bay flights
Heathrow to Willemstad flights
Gatwick to St. George's flights
Gatwick to Willemstad flights
Gatwick to Port of Spain flights
Heathrow to Kingstown flights
Gatwick to St. John's flights
Stansted to Santo Domingo flights
London City to Santo Domingo flights
Heathrow to Oranjestad flights
Gatwick to Havana flights
Heathrow to George Town flights
Heathrow to Castries flights
Heathrow to Roseau flights
London City to Castries flights
Stansted to Port of Spain flights
Heathrow to Santiago de los Caballeros flights
Heathrow to Basseterre flights
Gatwick to Oranjestad flights
Stansted to Nassau flights

Top 6 airlines flying from United Kingdom to Saint Lucia

Discover the top 6 airlines that operate flights from United Kingdom 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 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£493Average£825FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapest£534Average£836FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£636Average£745FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£693Average£910FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£709Average£963FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£1,160Average£1,504FlexibilityNo 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 United Kingdom to Saint Lucia?

Deals for United Kingdom to Saint Lucia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Saint Lucia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to Saint Lucia for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Saint Lucia from United Kingdom shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Saint Lucia from United Kingdom today and book when prices fit your budget.

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