£390 Find Cheap Flights from Saint Lucia to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Saint Lucia to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Saint Lucia to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Saint Lucia to London

Fri, 17 Jul - Fri, 31 Jul
British Airways Logo
20:50 - 10:10
UVF
-
LGW
8h 20mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£762British Airways
Fri, 17 Jul - Fri, 31 Jul
British Airways Logo
20:50 - 10:10
UVF
-
LGW
8h 20mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£785British Airways
Fri, 17 Jul - Fri, 31 Jul
British Airways Logo
20:50 - 10:10
UVF
-
LGW
8h 20mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£786British Airways
Fri, 17 Jul - Fri, 31 Jul
British Airways Logo
20:50 - 10:10
UVF
-
LGW
8h 20mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£790British Airways
Tue, 28 Apr - Sat, 23 Jan
Multiple Airlines Logo
15:57 - 15:00
UVF
-
LHR
18h 03m
2 stops
Multiple Airlines Logo
07:50 - 15:41
LHR
-
UVF
35h 51m
2 stops
£817Multiple Airlines
Tue, 5 May - Mon, 11 May
Air Canada Logo
15:05 - 08:35
UVF
-
LHR
36h 30m
2 stops
Air Canada Logo
08:40 - 14:05
LHR
-
UVF
34h 25m
2 stops
£922Air Canada
Tue, 5 May - Thu, 14 May
Air Canada Logo
15:05 - 08:35
UVF
-
LHR
36h 30m
2 stops
Air Canada Logo
08:30 - 14:05
LHR
-
UVF
34h 35m
1 stop
£935Air Canada
Thu, 7 May - Thu, 14 May
Multiple Airlines Logo
15:48 - 15:00
UVF
-
LHR
18h 12m
2 stops
Multiple Airlines Logo
19:10 - 11:21
LHR
-
UVF
45h 11m
2 stops
£936Multiple Airlines
Mon, 11 May - Mon, 18 May
Delta Logo
15:25 - 16:40
UVF
-
LCY
20h 15m
2 stops
Delta Logo
10:00 - 14:05
LCY
-
UVF
33h 05m
2 stops
£2,218Delta
Mon, 4 May - Fri, 8 May
Delta Logo
15:22 - 16:40
UVF
-
LCY
20h 18m
2 stops
Delta Logo
09:20 - 14:09
LCY
-
UVF
33h 49m
2 stops
£2,245Delta
Booking Insights

KAYAK's insights & trends for flights to London

Get data-powered insights and trends into flights to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to London?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to London was found on the route from Castries, at £762 return. The most popular connection is from Manchester to London and KAYAK users have found return deals for as low as £66 in the last 3 days.

What is the cheapest day to fly to London?

The average price of all round-trip flights to London clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to London is Wednesday where round-trip tickets can be as cheap as £745. On the other hand, the most expensive day to fly is Monday, where round-trip prices are £924 on average.

What is a good deal for flights to London?

If you’re looking for cheap airfare to London, 25% of our users found tickets to London for the following prices or less: From Castries £739 return.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Stansted Airport (STN), with an average flight price of £78.

Good to know - Cheap tickets from Saint Lucia to London

Low seasonFebruary
Cheapest flight£390
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (54% more expensive on average)
Flight from Castries to London Heathrow Airport

FAQs - booking London flights

  • What is the cheapest flight to London?

    In the last 3 days, the cheapest flight deal to London was found on the route from Castries, at £762 return. The most popular connection is from Manchester to London and KAYAK users have found return deals for as low as £66 in the last 3 days.

  • Which London airport is closest to central London?

    There are 6 major airports in London. The nearest airport from London city centre is London City (8 miles), followed by London Heathrow Airport (14 miles), London Gatwick Airport (24 miles), and London Luton Airport (28 miles).

  • How much is a flight to London?

    On average, a flight to London costs £663. The cheapest price found on KAYAK in the last 2 weeks cost £524 and departed from Castries Hewanorra Airport.

  • How does KAYAK find such low prices on flights to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to London

  • Looking for a cheap flight from Saint Lucia to London? 25% of our users found flights on this route for £524 or less one-way and £739 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Reviews of the top airline flying from Saint Lucia to London

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Saint Lucia to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 7822 reviews
7.6Crew
6.4Entertainment
6.4Food
6.8Comfort
6.9Boarding
Airline reviews

Business class on British Air with the Airbus 320 means the same seating as main cabin ( 3 - 3), but with the middle seat of each three-seat row blocked off to become a platform/table. This is decidedly NOT a business class experience. Other aspects of the flight were fine.

8.0 ExcellentAnonymous, Mar 2026
ARN - LHR
Read more British Airways reviews

Business class on British Air with the Airbus 320 means the same seating as main cabin ( 3 - 3), but with the middle seat of each three-seat row blocked off to become a platform/table. This is decidedly NOT a business class experience. Other aspects of the flight were fine.

I Keep your expectations to low to middling with BA, or most European/ US airlines these days.

Wish the food and overall service was better. They treat Business class passengers same as economy

Old plane, sold out on snacks, just trashy seats..broken..etc

Good flight. Only negative was the bus journey from plane to the terminal. Didn’t exit t this either BA at T5

Nothing! They canceled our flight to Greece the morning we were supposed to leave and offered us another one 5 days later (for a 9 day trip). They said it was an “operational decision”! Yeah a 777 that was 2/3rds empty, so they probably sent it to the Middle East to make a fortune getting people out of there!!

WiFi wasn’t available to economy until the end of the flight.

Boarding crew were extremely rude. At check in, I showed a medical note from a surgeon stating that I had a medical problem that caused me to end up in an emergency room. The surgeon requested that I get an upgrade so I can travel back home comfortably since I was in a lot of pain. I was alone with my daughters (9 and 14). They made a huge deal about giving me seats although there were so many empty seats in business. Finally, I paid a hefty price for it and the seats were exactly the same as in economy cabins but not as good because there was a forced tray in the middle seat that I couldnt even lift so I can lay down.

Very good staff members with sincere passion and responsibility in their job.

We were unable to check in on line with no explanation! Despite arriving at the airport 3 hours before deprture, my wife and I had no allocated seats and ended up being seated seperately. This is unacceptable! We were both ib the middle of the centre of the aircraft, despite having previously requested an aisle and seat next to it when booking and having been an Exec Club member for 25 years - so much for loyalty! The seats were extremely uncomfortable for such a long flight. I fly a lot and these were, by far, the most uncomfortable seats I've had in many years. It was all fine until we arrived at LHR where we got off the plane quickly, but then had to wait more than 45 minutes in the baggage hall for our bags to arrive, despite the fact that some luggage was already off when we got to the carousel. After 14 1/2 hours flying, this is completely unacceptable and ruined the experience for us.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Milton Keynes
Eastbourne
Hounslow
Luton
Southend-on-Sea
Slough
Winchester
Croydon
Stansted
Folkestone
Chichester
Maidstone
Colchester
Chelmsford
Crawley
Richmond
Bedford
Hastings
Watford

Everything you need to know for your flight to London

Cabin class types available on flights to London

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.