£350 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 4/6. 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, 7 Aug - Sun, 23 Aug
British Airways Logo
20:50 - 10:10
UVF
-
LGW
8h 20mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£735British Airways
Fri, 12 Jun - Fri, 19 Jun
British Airways Logo
20:50 - 10:10
UVF
-
LGW
8h 20mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£749British 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
£757British Airways
Mon, 13 Apr - Mon, 20 Apr
Air Canada Logo
16:05 - 08:35
UVF
-
LHR
35h 30m
1 stop
Air Canada Logo
15:10 - 15:20
LHR
-
UVF
53h 10m
2 stops
£800Air Canada
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
15:57 - 15:00
UVF
-
LHR
18h 03m
2 stops
Multiple Airlines Logo
14:40 - 14:37
LHR
-
UVF
52h 57m
2 stops
£894Multiple Airlines
Sun, 22 Mar - Wed, 8 Apr
Multiple Airlines Logo
12:35 - 05:35
SLU
-
LGW
13h 00m
1 stop
Multiple Airlines Logo
17:55 - 17:05
LGW
-
SLU
28h 10m
2 stops
£903Multiple Airlines
Sun, 23 Aug - Sun, 6 Sep
American Airlines Logo
15:15 - 12:50
UVF
-
LHR
16h 35m
1 stop
American Airlines Logo
18:05 - 14:09
LHR
-
UVF
25h 04m
2 stops
£979American Airlines
Sun, 23 Aug - Sun, 6 Sep
American Airlines Logo
15:15 - 12:50
UVF
-
LHR
16h 35m
1 stop
American Airlines Logo
12:00 - 14:15
LHR
-
UVF
31h 15m
1 stop
£1,010American Airlines
Wed, 18 Mar - Tue, 7 Apr
JetBlue Logo
15:49 - 06:55
UVF
-
LHR
35h 06m
2 stops
JetBlue Logo
08:40 - 17:47
LHR
-
UVF
38h 07m
2 stops
£1,038JetBlue
Wed, 18 Mar - Tue, 7 Apr
JetBlue Logo
15:49 - 21:40
UVF
-
LHR
25h 51m
1 stop
JetBlue Logo
08:40 - 17:47
LHR
-
UVF
38h 07m
2 stops
£1,061JetBlue
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 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 £519 one-way - £839 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, with an average flight price of £65.

Good to know - Cheap tickets from Saint Lucia to London

Low seasonFebruary
Cheapest flight£350
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (59% more expensive on average)
Flight from Castries to London Gatwick Airport

FAQs - booking London flights

  • 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 £722. The cheapest price found on KAYAK in the last 2 weeks cost £519 and departed from Castries Hewanorra Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Sunday where tickets can be as cheap as £736. On the other hand, the most expensive day to fly is Monday, where prices are £909 on average.

  • 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 £519 or less one-way and £839 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 7772 reviews
6.9Boarding
6.8Comfort
7.6Crew
6.4Entertainment
6.4Food
Airline reviews

Limited entertainment. Music - very limited variety of music. Suggest more options in Hindi, Telugu, English for flights leaving from Hyderabad.

6.0 GoodNari, Feb 2026
HYD - LHR
Read more British Airways reviews

Limited entertainment. Music - very limited variety of music. Suggest more options in Hindi, Telugu, English for flights leaving from Hyderabad.

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Food was good. For a long haul flight, there was “0” zero entertainment! What a disappointment. I do try to avoid BA. Next time its Emirates via Dubai to Cairo.

The internet was working on both sectors of the flight so hard to take the flight if you are on business.

Delays on take off, delays at gate on landing, lugging lost to the ether. power on seats not working, couldn't work due to that and no WiFi. The crew was great and boarding was orderly if confused and rushed.

Mumbai airport is a nightmare! Especially going from domestic to international terminal (2). I almost missed my flight. Then i could not check in because I purchased on kayak to British airways and my first flight was an indigo (non partner). So they called me when I was at the security outside the terminal and told me I had a middle seat, not what I paid for! After talking to the desk agent, they could not help but it finally worked out. A bit stressful for no reason. Probably never buy from kayak again this type pf complicated tickets (multi cities).

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

Easy, straightforward boarding process. Flight attendant was lovely and attentive, food was delicious - especially dinner, I had the roasted chicken in a mushroom sauce with potatoes - and entertainment selection was top notch. I would fly with BA again.

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

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
Bedford
Richmond
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.