£415 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 19/7. 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

Wed, 8 Apr - Wed, 15 Apr
Air Canada Logo
16:20 - 08:35
UVF
-
LHR
35h 15m
1 stop
Air Canada Logo
12:05 - 15:25
LHR
-
UVF
32h 20m
1 stop
£820Air Canada
Wed, 8 Apr - Wed, 15 Apr
Air Canada Logo
16:20 - 06:30
UVF
-
LHR
33h 10m
2 stops
Air Canada Logo
08:30 - 15:25
LHR
-
UVF
35h 55m
1 stop
£823Air Canada
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
£888British Airways
Tue, 12 May - Tue, 30 Jun
British Airways Logo
20:35 - 09:50
UVF
-
LGW
8h 15mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£922British Airways
Thu, 28 May - Wed, 17 Jun
WestJet Logo
14:30 - 09:25
UVF
-
LGW
37h 55m
2 stops
WestJet Logo
10:45 - 13:40
LGW
-
UVF
31h 55m
2 stops
£927WestJet
Thu, 28 May - Sat, 20 Jun
WestJet Logo
14:30 - 09:25
UVF
-
LGW
37h 55m
2 stops
WestJet Logo
10:45 - 13:40
LGW
-
UVF
31h 55m
2 stops
£930WestJet
Sat, 2 May - Sat, 9 May
Multiple Airlines Logo
17:50 - 09:05
SLU
-
LHR
34h 15m
3 stops
Multiple Airlines Logo
16:50 - 14:35
LHR
-
SLU
26h 45m
3 stops
£947Multiple Airlines
Thu, 28 May - Wed, 17 Jun
Multiple Airlines Logo
14:30 - 10:45
UVF
-
LGW
15h 15m
1 stop
Multiple Airlines Logo
10:35 - 13:40
LGW
-
UVF
32h 05m
2 stops
£1,001Multiple Airlines
Wed, 8 Apr - Wed, 15 Apr
Delta Logo
15:18 - 16:40
UVF
-
LCY
20h 22m
2 stops
Delta Logo
10:00 - 14:02
LCY
-
UVF
33h 02m
2 stops
£1,697Delta
Thu, 2 Apr - Fri, 1 May
Delta Logo
15:18 - 16:40
UVF
-
LCY
20h 22m
2 stops
Delta Logo
09:20 - 14:02
LCY
-
UVF
33h 42m
2 stops
£1,978Delta
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 £820 return. The most popular connection is from Manchester to London and KAYAK users have found return deals for as low as £70 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 £746. 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 £75.

Good to know - Cheap tickets from Saint Lucia to London

Low seasonFebruary
Cheapest flight£415
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 Gatwick 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 £820 return. The most popular connection is from Manchester to London and KAYAK users have found return deals for as low as £70 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 £664. 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 7807 reviews
6.9Boarding
6.4Food
7.6Crew
6.8Comfort
6.4Entertainment
Airline reviews

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!!

2.0 MediocreAnonymous, Mar 2026
ATH - LHR
Read more British Airways reviews

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.

Very please with the seating that the Kayak staff booked for us!

I liked the movie selection and the speed getting the luggage. I did not like the fact that for premium they did not have a personal kit with toothpaste, I travel all the time in premium economy and bussiness and althought the kit might bot be the same at least you have the smalles kit in premium economy. I did not like either that because i was in the last row of premium economy nothing made it to my seat. They run out of the food I wanted ( it is a surprise because there were only 6-7 rows. They would run out of orange jouice were thy were passing water/orange juice around, they run out of some alcohol. I am undertand running out of it but I don’t understand why mot getting kore. The service I received in row 11 was different from the service in rows 7,8…. Also the screen on my tv was broken. It did not respond to touch. So, in conclusion, if I compare my flight going to Europe with an American airline plane in premium and the one with British, British expereince was significantly much worse. This company is declining fast.

The crew on the flight were not particularly pleasant and fluid restriction was an issue. I was not allowed to fill my water bottle. Crew didn't check on passengers other than meal service.

BA is a fine airline. The problem lies with XCOVER INSURANCE, that KAYAK uses. Very poor service from insurance. No telephone number to contact XCOVER. Their replies are inadequate & overall very bad insurance. I wish kayak uses standard insurance company., such as AIG.

British Airways offers amenities subpar with all other airlines flying internationally. Sharing tis based on my experience with flying at least five other airline between IAD-DEL in the last six months.

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.