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Cheap flights from London to Saint Lucia from £361

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.
LON — UVF
21 Apr — 28 Apr1
1 adult

Cheap 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 16 April 2025.

Round-trip from

£507

One-way from

£361

Popular in

December

Cheapest in

September

Average price

£693

Good round-trip deal

£520 or less

Good one-way deal

£396 or less
British Airways
  • British Airways
  • 3/9-2/10
  • Nonstop
  • 17h 05m total
  • London to Saint Lucia
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WestJet
  • WestJet
  • 7/6
  • 2 total stops
  • 32h 00m total
  • London to Saint Lucia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£60 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from London (LON) to Saint Lucia.
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Price to beat on a one-way flight from London (LON) to Saint Lucia.
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Find flight deals from London to Saint Lucia

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 16 April 2025.

Wed 3/911:15LGW - UVF
Nonstop8h 45mBritish Airways
Thu 2/1022:05UVF - LGW
Nonstop8h 20mBritish Airways
Deal found 15/4£507
Wed 3/1219:25LHR - UVF
2 stops48h 35mAir Canada
Wed 17/1217:05UVF - LHR
1 stop33h 25mAir Canada
Deal found 15/4£542
Wed 11/611:55LHR - UVF
1 stop31h 53mIcelandair
Mon 23/616:00UVF - LHR
1 stop23h 45mIcelandair
Deal found 15/4£675
Thu 11/915:05LGW - UVF
2 stops27h 38mAmerican Airlines
Mon 15/915:34UVF - LGW
2 stops35h 36mAmerican Airlines
Deal found 15/4£683
Mon 2/608:05LHR - SLU
1 stop14h 25mMultiple Airlines
Fri 13/613:55SLU - LHR
1 stop12h 55mMultiple Airlines
Deal found 15/4£698
Fri 14/1111:20LGW - UVF
2 stops31h 10mFinnair
Fri 21/1116:35UVF - LGW
2 stops36h 25mFinnair
Deal found 15/4£698
Wed 12/1114:30LHR - UVF
1 stop26h 30mAmerican Airlines
Fri 21/1115:05UVF - LHR
1 stop16h 25mAmerican Airlines
Deal found 16/4£704
Wed 3/920:10LHR - UVF
2 stops23h 05mDelta
Thu 2/1015:38UVF - LHR
1 stop16h 52mDelta
Deal found 15/4£707
Wed 11/612:10LGW - UVF
2 stops31h 38mIcelandair
Mon 23/617:40UVF - LGW
2 stops34h 55mIcelandair
Deal found 15/4£745
Wed 30/419:05LHR - UVF
2 stops24h 23mFinnair
Fri 9/515:14UVF - LHR
2 stops34h 41mFinnair
Deal found 15/4£755
Thu 15/510:05LHR - UVF
2 stops33h 06mBritish Airways
Fri 23/515:14UVF - LHR
1 stop35h 26mBritish Airways
Deal found 15/4£808
Wed 11/613:05LGW - SLU
2 stops29h 05mMultiple Airlines
Mon 23/616:35SLU - LGW
2 stops32h 45mMultiple Airlines
Deal found 15/4£813

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 16 April 2025.
Use the filters below to find and compare flights from London to Saint Lucia that are best for you.

Fly from

London

Fly to

Saint Lucia

Route

Depart

Return

Price

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Wed 3/9

11:15-15:00

Nonstop8h 45m

Castries Hewanorra

Thu 2/10

22:05-11:25

Nonstop8h 20m

£507

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 13/10

12:05-14:15

1 stop31h 10m

Castries Hewanorra

Tue 21/10

15:05-11:50

1 stop15h 45m

£546

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 11/6

11:55-14:48

1 stop31h 53m

Castries Hewanorra

Mon 23/6

16:00-20:45

1 stop23h 45m

£675

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 11/9

15:05-13:43

2 stops27h 38m

Castries Hewanorra

Mon 15/9

15:34-08:10

2 stops35h 36m

£683

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 2/6

08:05-17:30

1 stop14h 25m

Castries George F. L. Charle

Fri 13/6

13:55-07:50

1 stop12h 55m

£698

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 3/9

20:10-14:15

2 stops23h 05m

Castries Hewanorra

Thu 2/10

15:38-20:00

2 stops23h 22m

£707

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 11/9

20:10-13:43

2 stops22h 33m

Castries Hewanorra

Mon 15/9

15:34-18:55

2 stops22h 21m

£714

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 6/5

15:05-13:34

2 stops27h 29m

Castries Hewanorra

Tue 13/5

15:14-08:10

2 stops35h 56m

£724

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Wed 11/6

12:10-14:48

2 stops31h 38m

Castries Hewanorra

Mon 23/6

17:40-09:35

2 stops34h 55m

£745

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 30/4

19:05-14:28

2 stops24h 23m

Castries Hewanorra

Fri 9/5

15:14-06:55

2 stops34h 41m

£755

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 32 results
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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, March is the cheapest month in which you can book a flight from London to Saint Lucia (average of £328). Flying from London 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 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 16 April 2025.

A simple way to save on the total cost of your ticket is to fly from London to Saint Lucia in the morning. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at midday.

What is the cheapest day to fly from London to Saint Lucia?

Use this chart to determine the cheapest time to fly return from London to Saint Lucia. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Saint Lucia flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 16 April 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from London to Saint Lucia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,917 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,917 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,326 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £361. British Airways flights start at £436 while deals on Air Canada start at £479 one-way.

  • 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 City - Castries Hewanorra.

  • What are the cheapest flights from London to Saint Lucia?

    The cheapest flight price from London to Saint Lucia is £511. On average you can expect to pay £526. The most popular route, (London Heathrow - Castries Hewanorra), can usually be booked for £542.

  • 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, March is the cheapest month in which you can book a flight from London to Saint Lucia (average of £328). Flying from London 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

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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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Heathrow to Bridgetown flights
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Gatwick to Luis Munoz Marin Intl flights
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London City to Luis Munoz Marin Intl flights
Stansted to Punta Cana flights
Gatwick to Havana flights
London City to Castries flights
Stansted to Kingston flights
Gatwick to Basseterre flights
Heathrow to Castries flights
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Birmingham to Montego Bay flights
Gatwick to Roseau flights
Gatwick to Port of Spain flights
Heathrow to Simpson Bay flights
Heathrow to Basseterre flights
Manchester to Santo Domingo flights
London City to Santo Domingo flights
Gatwick to Pointe-à-Pitre flights
Luton to Punta Cana 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 16 April 2025.
AirlineCheapestAverageFlexibilityOn-time
TUI AirwaysCheapest£266Average£338FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
British AirwaysCheapest£426Average£621FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£440Average£643FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£520Average£1,335FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air CanadaCheapest£522Average£596FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£542Average£822FlexibilityNo cancel feeOn-time76%
Search Finnair 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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