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Cheap flights from the United Kingdom to Saint Lucia from £417

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — UVF
8 Jul — 15 Jul1
1 adult

Cheap 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 3 July 2025.

Round-trip from

£579

One-way from

£417

Popular in

December

Cheapest in

September

Average price

£575

Good round-trip deal

£584 or less

Good one-way deal

£448 or less
Air Canada
  • Air Canada
  • 23/10-3/11
  • 2 total stops
  • 41h 30m total
  • United Kingdom to Saint Lucia
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British Airways
  • British Airways
  • 15/9
  • Nonstop
  • 8h 50m total
  • United Kingdom to Saint Lucia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£64 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from United Kingdom to Saint Lucia.
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Price to beat on a one-way flight from United Kingdom to Saint Lucia.
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Find flight deals from United Kingdom to Saint Lucia

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 3 July 2025.

Thu 23/1015:50LHR - UVF
1 stop27h 25mAir Canada
Mon 3/1117:15UVF - LHR
1 stop14h 05mAir Canada
Deal found 30/6£579
Mon 8/912:10LGW - UVF
2 stops30h 35mIcelandair
Wed 17/915:06UVF - LGW
2 stops37h 29mIcelandair
Deal found 2/7£591
Thu 11/1210:05LGW - UVF
Nonstop9h 05mBritish Airways
Thu 5/222:10UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 2/7£597
Wed 27/808:15LHR - UVF
1 stop35h 12mIcelandair
Wed 10/915:06UVF - LHR
2 stops34h 24mIcelandair
Deal found 2/7£641
Sun 7/918:05MAN - UVF
2 stops49h 10mMultiple Airlines
Tue 16/915:10UVF - MAN
2 stops38h 15mMultiple Airlines
Deal found 2/7£653
Mon 22/908:05LHR - SLU
1 stop14h 25mMultiple Airlines
Fri 26/913:55SLU - LHR
1 stop12h 55mMultiple Airlines
Deal found 1/7£670
Sun 17/820:10LHR - UVF
2 stops23h 05mDelta
Thu 4/915:35UVF - LHR
2 stops23h 25mDelta
Deal found 1/7£707
Fri 24/1013:40LHR - UVF
1 stop29h 04mAmerican Airlines
Tue 4/1116:35UVF - LHR
1 stop15h 30mAmerican Airlines
Deal found 30/6£710
Thu 21/808:15LHR - UVF
1 stop35h 12mJetBlue
Wed 27/817:31UVF - LHR
1 stop34h 59mJetBlue
Deal found 2/7£722
Thu 18/914:30LGW - UVF
2 stops28h 47mAmerican Airlines
Thu 20/1117:15UVF - LGW
2 stops34h 15mAmerican Airlines
Deal found 30/6£738
Thu 18/913:05LGW - SLU
2 stops27h 25mMultiple Airlines
Thu 20/1115:20SLU - LGW
3 stops34h 40mMultiple Airlines
Deal found 30/6£774
Wed 27/815:05LGW - UVF
2 stops28h 30mFinnair
Wed 10/915:17UVF - LGW
2 stops34h 18mFinnair
Deal found 1/7£776

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 3 July 2025.
Use the filters below to find and compare flights from the United Kingdom to Saint Lucia that are best for you.

Fly from

United Kingdom

Fly to

Saint Lucia

Route

Depart

Return

Price

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 23/10

15:50-14:15

1 stop27h 25m

Castries Hewanorra

Mon 3/11

17:15-11:20

1 stop14h 05m

£579

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Mon 8/9

12:10-13:45

2 stops30h 35m

Castries Hewanorra

Wed 17/9

15:06-09:35

2 stops37h 29m

£591

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 11/12

10:05-15:10

Nonstop9h 05m

Castries Hewanorra

Thu 5/2

22:10-10:25

Nonstop8h 15m

£597

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 27/8

08:15-14:27

1 stop35h 12m

Castries Hewanorra

Wed 10/9

15:06-06:30

2 stops34h 24m

£641

ManchesterCastries

MAN - UVF

MANUVF

Manchester

Sun 7/9

18:05-14:15

2 stops49h 10m

Castries Hewanorra

Tue 16/9

15:10-10:25

2 stops38h 15m

£653

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 22/9

08:05-17:30

1 stop14h 25m

Castries George F. L. Charle

Fri 26/9

13:55-07:50

1 stop12h 55m

£670

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 17/8

20:10-14:15

2 stops23h 05m

Castries Hewanorra

Thu 4/9

15:35-20:00

2 stops23h 25m

£707

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Fri 24/10

13:40-13:44

1 stop29h 04m

Castries Hewanorra

Tue 4/11

16:35-12:05

1 stop15h 30m

£710

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 21/8

08:15-14:27

1 stop35h 12m

Castries Hewanorra

Wed 27/8

17:31-09:30

1 stop34h 59m

£722

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 18/9

14:30-14:17

2 stops28h 47m

Castries Hewanorra

Thu 20/11

17:15-07:30

2 stops34h 15m

£738

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 47 results
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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, March is the cheapest month in which you can book a flight from United Kingdom to Saint Lucia (average of £328). Flying from United Kingdom to Saint Lucia in December is currently the most expensive (average of £1,100). 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 3 July 2025.

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.

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 3 July 2025.
Read through reviews of airlines operating flights from the United Kingdom to Saint Lucia, such as Delta, KLM, andFinnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,975 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very Good
7,975 reviews
Delta
8.0
Very Good
7,975 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very Good
7,975 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Finnair
7.6
Good
1,303 reviews
Delta
8.0
Very Good
7,975 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very Good
7,975 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
JetBlue
7.3
Good
2,918 reviews
Delta
8.0
Very Good
7,975 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

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.

  • What are the cheapest airlines to fly from United Kingdom to Saint Lucia one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £417. Air Canada flights start at £488 while deals on United Airlines start at £570 one-way.

  • 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, March is the cheapest month in which you can book a flight from United Kingdom to Saint Lucia (average of £328). Flying from United Kingdom to Saint Lucia in December is currently the most expensive (average of £1,100). 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 United Kingdom to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Montego Bay flights
Heathrow to Bridgetown flights
Heathrow to Kingston flights
Gatwick to Bridgetown flights
Gatwick to Montego Bay flights
Gatwick to Punta Cana flights
Heathrow to George Town flights
Heathrow to Punta Cana flights
Gatwick to Kingston flights
London City to Montego Bay flights
Manchester to Bridgetown flights
Heathrow to Nassau flights
Heathrow to Port of Spain flights
Manchester to Montego Bay flights
Heathrow to Castries flights
London City to Kingston flights
Gatwick to Santo Domingo flights
Heathrow to Luis Munoz Marin Intl flights
London City to Bridgetown flights
Gatwick to Castries flights
London City to Punta Cana flights
Heathrow to St. George's flights
Heathrow to Santo Domingo flights
Heathrow to St. John's flights
Gatwick to St. John's flights
Manchester to Punta Cana flights
Gatwick to George Town flights
Heathrow to Kingstown flights
Charles de Gaulle to Pointe-à-Pitre flights
Gatwick to Luis Munoz Marin Intl flights
Orly to Pointe-à-Pitre flights
Stansted to Punta Cana flights
Gatwick to Havana flights
Gatwick to St. George's flights
Gatwick to Nassau flights
Birmingham to Montego Bay flights
London City to Castries flights
Stansted to Montego Bay flights
Heathrow to Road Town flights
Stansted to Santo Domingo flights
Luton to Montego Bay flights
Gatwick to Port of Spain flights
Heathrow to Oranjestad flights
London City to Luis Munoz Marin Intl flights
Heathrow to Pointe-à-Pitre flights
Luton to Punta Cana flights
Heathrow to Willemstad flights
Heathrow to Castries flights
Gatwick to Willemstad 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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
TUI AirwaysCheapest£277Average£378FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
British AirwaysCheapest£409Average£620FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£421Average£608FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air CanadaCheapest£505Average£609FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£524Average£773FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£669Average£1,290FlexibilityNo 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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