Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Saint Lucia to London 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
UVF — LON
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Find 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 27 November 2025.

Fri 19/1220:50UVF - LGW
Nonstop8h 15mBritish Airways
Wed 21/110:05LGW - UVF
Nonstop9h 05mBritish Airways
Deal found 25/11£767
Fri 5/1220:50UVF - LGW
Nonstop8h 15mBritish Airways
Fri 5/611:15LGW - UVF
Nonstop8h 50mBritish Airways
Deal found 26/11£787
Thu 25/1222:05UVF - LGW
Nonstop8h 15mBritish Airways
Wed 31/1210:05LGW - UVF
Nonstop9h 05mBritish Airways
Deal found 24/11£797
Sat 13/1220:35UVF - LGW
Nonstop8h 15mBritish Airways
Sat 13/611:15LGW - UVF
Nonstop8h 50mBritish Airways
Deal found 26/11£820
Fri 26/1220:50UVF - LGW
Nonstop8h 15mBritish Airways
Fri 2/110:00LGW - UVF
Nonstop9h 05mBritish Airways
Deal found 26/11£824
Fri 12/1220:50UVF - LGW
Nonstop8h 15mBritish Airways
Fri 12/611:15LGW - UVF
Nonstop8h 50mBritish Airways
Deal found 26/11£838
Thu 18/1222:05UVF - LGW
Nonstop8h 15mBritish Airways
Wed 21/110:05LGW - UVF
Nonstop9h 05mBritish Airways
Deal found 25/11£850
Sat 20/1220:35UVF - LGW
Nonstop8h 15mBritish Airways
Wed 31/1210:05LGW - UVF
Nonstop9h 05mBritish Airways
Deal found 24/11£864
Fri 12/1216:57UVF - LHR
2 stops36h 18mIcelandair
Fri 12/614:40LHR - UVF
2 stops53h 34mIcelandair
Deal found 26/11£864
Mon 1/1222:05UVF - LGW
Nonstop8h 15mBritish Airways
Mon 8/1210:00LGW - UVF
Nonstop9h 05mBritish Airways
Deal found 24/11£885
Sat 20/1220:35UVF - LGW
Nonstop8h 15mBritish Airways
Sat 27/1210:05LGW - UVF
Nonstop9h 05mBritish Airways
Deal found 23/11£896
Fri 5/1216:57UVF - LHR
2 stops38h 28mIcelandair
Fri 5/621:10LHR - UVF
2 stops44h 54mIcelandair
Deal found 26/11£898

Cheap 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 27 November 2025.

Round-trip from

£739

One-way from

£306

Good round-trip deal

£779 or less
British Airways
  • British Airways
  • 12/2-26/2
  • Nonstop
  • 17h 20m total
  • Saint Lucia to London
Search Deals
Air Canada
  • Air Canada
  • 3/12
  • 3 total stops
  • 47h 20m total
  • Saint Lucia to London
Search Deals
Price to beat on a round-trip 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 27 November 2025.
Use the filters below to find and compare flights from Saint Lucia to London that are best for you.

Fly from

Saint Lucia

Fly to

London

Route

Depart

Return

Price

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Thu 12/2

22:05-10:20

Nonstop8h 15m

London Gatwick

Thu 26/2

10:00-15:05

Nonstop9h 05m

£739

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 22/5

20:50-10:10

Nonstop8h 20m

London Gatwick

Tue 26/5

11:15-15:05

Nonstop8h 50m

£762

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 19/12

20:50-09:05

Nonstop8h 15m

London Gatwick

Wed 21/1

10:05-15:10

Nonstop9h 05m

£767

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Thu 25/12

22:05-10:20

Nonstop8h 15m

London Gatwick

Wed 31/12

10:05-15:10

Nonstop9h 05m

£797

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Thu 29/1

22:05-10:20

Nonstop8h 15m

London Gatwick

Mon 2/2

10:00-15:05

Nonstop9h 05m

£819

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Sat 13/12

20:35-08:50

Nonstop8h 15m

London Gatwick

Sat 13/6

11:15-15:05

Nonstop8h 50m

£820

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 12/2

16:51-20:45

1 stop23h 54m

London Heathrow

Thu 26/2

07:25-16:00

1 stop36h 35m

£834

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 29/1

17:15-06:30

1 stop33h 15m

London Heathrow

Mon 2/2

13:45-16:20

2 stops54h 35m

£836

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 12/12

20:50-09:05

Nonstop8h 15m

London Gatwick

Fri 12/6

11:15-15:05

Nonstop8h 50m

£838

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 12/12

16:57-09:15

2 stops36h 18m

London Heathrow

Fri 12/6

14:40-15:14

2 stops53h 34m

£864

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 54 results
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

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

Currently, September is the cheapest month in which you can book a flight from Saint Lucia to London (average of £428). Flying from Saint Lucia to London in May is currently the most expensive (average of £706). 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 27 November 2025.

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 27 November 2025.
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
7,539 reviews
Check prices

Overall

6.7

Boarding

6.9

Food

6.3

Entertainment

6.4

Comfort

6.7

Crew

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

ALG - LGW

Didn't like anything from this flight starting with the lady at the counter. Nasty attitude.
British Airways
6.7
Okay
7,539 reviews
British Airways
6.7
Okay
7,539 reviews
Check prices

Overall

6.7

Boarding

6.9

Food

6.3

Entertainment

6.4

Comfort

6.7

Crew

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

ALG - LGW

Didn't like anything from this flight starting with the lady at the counter. Nasty attitude.

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 15m. Fly via British Airways, JetBlue, or Air Canada 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 cheapest airlines to fly from Saint Lucia to London one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at £306. Icelandair flights start at £386 while deals on British Airways start at £569 one-way.

  • 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, September is the cheapest month in which you can book a flight from Saint Lucia to London (average of £428). Flying from Saint Lucia to London in May is currently the most expensive (average of £706). 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
Slough
Croydon
Hounslow
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Crawley
Romford
Chichester
Bedford
Guildford
Ipswich

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 Saint Lucia to London

See prices for flight routes from nearby airports that may be better suited for you.
Bridgetown to Heathrow flights
Kingston to Heathrow flights
Kingston to Gatwick flights
Luis Munoz Marin Intl to Heathrow flights
Luis Munoz Marin Intl to Gatwick flights
Bridgetown to Gatwick flights
Montego Bay to Gatwick flights
Montego Bay to Heathrow flights
Nassau to Heathrow flights
Port of Spain to Heathrow flights
Punta Cana to Gatwick flights
St. John's to Heathrow flights
Bridgetown to London City flights
Punta Cana to Heathrow flights
Santo Domingo to Heathrow flights
Providenciales to Heathrow flights
St. George's to Heathrow flights
St. John's to Gatwick flights
Santo Domingo to Gatwick flights
Castries to Gatwick flights
St. George's to Gatwick flights
Port of Spain to Gatwick flights
Road Town to Heathrow flights
Nassau to Gatwick flights
Providenciales to Manchester flights
Luis Munoz Marin Intl to Edinburgh flights
Castries to Heathrow flights
Bridgetown to Manchester flights
Road Town to Gatwick flights
Montego Bay to London City flights
George Town to Manchester flights
George Town to Heathrow flights
Simpson Bay to Heathrow flights
Saint Thomas Island to Heathrow flights
Simpson Bay to Gatwick flights
Havana to Heathrow flights
Montego Bay to Luton flights
Castries to London City flights
George Town to Gatwick flights
Scarborough to Gatwick flights

Top 2 airlines flying from Saint Lucia to London

Discover the top 2 airlines 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£580Average£706FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£656Average£805FlexibilityNo 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.