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Cheap flights from Saint Lucia to London from £374

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
UVF — LON
25 Aug — 1 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 26 July 2026.

Tue 3/1119:20
UVF
-
LGW
Nonstop8h 15m
British Airways
Sat 28/1112:30
LGW
-
UVF
Nonstop9h 05m
British Airways
Deal found 24/7£742
Fri 25/920:45
UVF
-
LGW
Nonstop8h 25m
British Airways
Sat 3/1011:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 25/7£743
Thu 17/922:00
UVF
-
LGW
Nonstop8h 25m
British Airways
Mon 21/911:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Deal found 23/7£745
Mon 7/922:00
UVF
-
LGW
Nonstop8h 25m
British Airways
Mon 14/911:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Deal found 22/7£754
Fri 4/920:45
UVF
-
LGW
Nonstop8h 25m
British Airways
Tue 8/911:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Deal found 22/7£757
Sun 11/1020:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Fri 16/1011:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 22/7£775
Sun 6/920:25
UVF
-
LGW
Nonstop8h 25m
British Airways
Sun 13/911:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Deal found 23/7£780
Fri 25/916:39
UVF
-
LHR
2 stops17h 21m
Multiple Airlines
Sat 3/1009:50
LHR
-
UVF
2 stops34h 44m
Multiple Airlines
Deal found 22/7£793
Fri 4/913:50
UVF
-
LHR
1 stop25h 55m
Multiple Airlines
Tue 8/909:15
LHR
-
UVF
2 stops33h 47m
Multiple Airlines
Deal found 22/7£831
Thu 17/916:39
UVF
-
LHR
1 stop35h 51m
Multiple Airlines
Mon 21/910:30
LHR
-
UVF
2 stops32h 32m
Multiple Airlines
Deal found 23/7£832
Sun 2/820:25
UVF
-
LGW
Nonstop8h 25m
British Airways
Sat 22/811:15
LGW
-
UVF
Nonstop8h 45m
British Airways
Deal found 20/7£835
Mon 24/813:59
UVF
-
LHR
1 stop25h 46m
Multiple Airlines
Mon 31/809:15
LHR
-
UVF
2 stops33h 34m
Multiple Airlines
Deal found 25/7£886

Find 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 26 July 2026.

Round-trip from

£742

One-way from

£374

Good round-trip deal

£854 or less
British Airways
  • British Airways
  • 3/11-28/11
  • Nonstop
  • 17h 20m total
  • Saint Lucia to London
Search Deals
5/9
  • 5/9
  • 2 total stops
  • 34h 48m 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 26 July 2026.
Use the filters below to find and compare flights from Saint Lucia to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 25/9

20:45-10:10

Nonstop8h 25m

London Gatwick

Sat 3/10

11:15-15:05

Nonstop8h 50m

£743

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 25/9

16:39-15:00

2 stops17h 21m

London Heathrow

Sat 3/10

09:50-15:34

2 stops34h 44m

£801

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 17/9

16:39-20:45

1 stop23h 06m

London Heathrow

Mon 21/9

12:15-14:02

1 stop30h 47m

£835

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Mon 24/8

13:59-20:45

1 stop25h 46m

London Heathrow

Mon 31/8

09:15-13:49

2 stops33h 34m

£886

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 25/9

16:39-09:55

2 stops36h 16m

London Gatwick

Sat 3/10

17:40-15:33

2 stops50h 53m

£895

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Thu 17/9

16:39-09:55

2 stops36h 16m

London Gatwick

Mon 21/9

07:05-15:33

2 stops37h 28m

£897

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Tue 3/11

17:15-22:30

2 stops49h 15m

London Heathrow

Sat 28/11

17:55-16:02

2 stops50h 07m

£970

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 25/9

16:39-20:45

1 stop23h 06m

London Heathrow

Sat 3/10

08:15-15:34

1 stop36h 19m

£1,037

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Mon 7/9

13:50-09:30

1 stop14h 40m

London Heathrow

Mon 14/9

08:15-15:33

1 stop36h 18m

£1,048

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Mon 7/9

19:40-11:55

3 stops35h 15m

London Heathrow

Mon 14/9

08:50-08:10

3 stops28h 20m

£1,098

Flights are sorted by cheapest return flights first.

Deals found on 24/7

Showing 1-10 of 45 resultsSorted by cheapest first
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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 £753). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,110). 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 26 July 2026.

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 26 July 2026.
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
8,132 reviews
Check prices

Entertainment

6.5

Overall

6.7

Crew

7.7

Food

6.4

Comfort

6.8

Boarding

6.9

Reviews

1 / 20
8.0
Excellent

Kaisha,Jul 2026

VLC - LGW

It was a Vueling flight. Boarding was super quick and organised. Didn't eat or purchase anything so cant comment on food. It was a short flight so there was also no entertainment. Disembarking was done in rows which I though was a good idea however people continued to make it seem like a really challenging task. Trying to walk back for bags, waking from seats further back when it wasnt their turn etc.
British Airways
6.7
Okay
8,132 reviews
British Airways
6.7
Okay
8,132 reviews
Check prices

Entertainment

6.5

Overall

6.7

Crew

7.7

Food

6.4

Comfort

6.8

Boarding

6.9

Reviews

1 / 20
8.0
Excellent

Kaisha,Jul 2026

VLC - LGW

It was a Vueling flight. Boarding was super quick and organised. Didn't eat or purchase anything so cant comment on food. It was a short flight so there was also no entertainment. Disembarking was done in rows which I though was a good idea however people continued to make it seem like a really challenging task. Trying to walk back for bags, waking from seats further back when it wasnt their turn etc.

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 25m. Fly via British Airways or Delta 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 most popular routes from Saint Lucia to London?

    Most travelers choose Castries Hewanorra - London Gatwick, Castries Hewanorra - London Heathrow or Castries George F. L. Charle - London Heathrow 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 £753). Flying from Saint Lucia to London in April is currently the most expensive (average of £1,110). 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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Watford
Southend-on-Sea
Kingston upon Thames
Southall
Aylesbury
Dover
Romford
Enfield

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Saint Lucia to London

Discover the top airline 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 26 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£705Average£875FlexibilityNo 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.

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