£302 Find Cheap Flights from Saint Lucia to London – Compare and Save

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Cheap Flights from Saint Lucia to London

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Saint Lucia to London

Fri, 2 Oct - Fri, 9 Oct
JetBlue Logo
16:39 - 20:45UVF  Castries Hewanorra-LHR London Heathrow
23h 06m1 stop New York John F Kennedy Intl
JetBlue Logo
08:15 - 15:03LHR  London Heathrow-UVF Castries Hewanorra
35h 48m1 stop New York John F Kennedy Intl
£723JetBlue
Sun, 6 Sep - Tue, 22 Sep
JetBlue Logo
13:33 - 20:45UVF  Castries Hewanorra-LHR London Heathrow
26h 12m1 stop New York John F Kennedy Intl
JetBlue Logo
11:55 - 15:33LHR  London Heathrow-UVF Castries Hewanorra
32h 38m1 stop New York John F Kennedy Intl
£724JetBlue
Fri, 4 Sep - Sat, 19 Sep
JetBlue Logo
16:17 - 09:30UVF  Castries Hewanorra-LHR London Heathrow
36h 13m1 stop New York John F Kennedy Intl
JetBlue Logo
08:15 - 15:34LHR  London Heathrow-UVF Castries Hewanorra
36h 19m1 stop New York John F Kennedy Intl
£725JetBlue
Thu, 1 Oct - Thu, 8 Oct
British Airways Logo
22:05 - 11:25UVF  Castries Hewanorra-LGW London Gatwick
8h 20mdirect
British Airways Logo
11:15 - 15:05LGW  London Gatwick-UVF Castries Hewanorra
8h 50mdirect
£736British Airways
Fri, 2 Oct - Fri, 9 Oct
British Airways Logo
20:50 - 10:10UVF  Castries Hewanorra-LGW London Gatwick
8h 20mdirect
British Airways Logo
11:15 - 15:05LGW  London Gatwick-UVF Castries Hewanorra
8h 50mdirect
£738British Airways
Sat, 26 Sep - Wed, 28 Oct
British Airways Logo
20:25 - 09:50UVF  Castries Hewanorra-LGW London Gatwick
8h 25mdirect
British Airways Logo
12:30 - 17:35LGW  London Gatwick-UVF Castries Hewanorra
9h 05mdirect
£739British Airways
Sun, 27 Sep - Thu, 1 Oct
Multiple Airlines Logo
16:39 - 20:45UVF  Castries Hewanorra-LHR London Heathrow
23h 06m1 stop New York John F Kennedy Intl
Multiple Airlines Logo
14:10 - 14:02LHR  London Heathrow-UVF Castries Hewanorra
28h 52m2 stops New York John F Kennedy Intl Miami
£742Multiple Airlines
Fri, 25 Sep - Sat, 3 Oct
British Airways Logo
20:45 - 10:10UVF  Castries Hewanorra-LGW London Gatwick
8h 25mdirect
British Airways Logo
11:15 - 15:05LGW  London Gatwick-UVF Castries Hewanorra
8h 50mdirect
£743British Airways
Sun, 27 Sep - Thu, 1 Oct
Multiple Airlines Logo
16:39 - 20:45UVF  Castries Hewanorra-LHR London Heathrow
23h 06m1 stop New York John F Kennedy Intl
Multiple Airlines Logo
12:15 - 14:02LHR  London Heathrow-UVF Castries Hewanorra
30h 47m1 stop Miami
£745Multiple Airlines
Fri, 2 Oct - Fri, 9 Oct
Multiple Airlines Logo
16:39 - 20:45UVF  Castries Hewanorra-LHR London Heathrow
23h 06m1 stop New York John F Kennedy Intl
Multiple Airlines Logo
13:00 - 15:04LHR  London Heathrow-UVF Castries Hewanorra
31h 04m2 stops Philadelphia Miami
£745Multiple Airlines
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 day to fly to London?

Based on KAYAK data, the cheapest day to fly to London is Wednesday where round-trip tickets can be as cheap as £761. On the other hand, the most expensive day to fly is Monday, where round-trip prices are £919 on average.

What is the cheapest month to fly to London?

The cheapest month for flights to London is September, where tickets cost £749 on average for return flights. On the other hand, the most expensive months are August and April, where the average cost of tickets from Saint Lucia is £1,135 and £1,085 respectively. For one-way flights, the best month to travel is August with an average price of £481.

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 Southend Airport (SEN), with an average flight price of £86.

Good to know - Cheap tickets from Saint Lucia to London

Low season

September

Cheapest flight

£302
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (48% 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 £863. The cheapest price found on KAYAK in the last 2 weeks cost £804 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.

  • How many direct flights to London are there each week?

    Each week there are around 2,051 direct flights from within Saint Lucia to London. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to London

  • Looking for a cheap flight from London to Saint Lucia? 25% of our users found flights on this route for £814 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

 
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 8179 reviews
6.5Entertainment
6.8Comfort
6.4Food
7.0Boarding
7.7Crew
Airline reviews

Boarding from the SFO lounge is a big improvement. Although the first class dining room inside the lounge is becoming very crowded.

10.0 ExcellentAnonymous, Aug 2026
Read more British Airways reviews

Boarding from the SFO lounge is a big improvement. Although the first class dining room inside the lounge is becoming very crowded.

Decent flight, helpful middle seat blocking in business. Boarding staff was polite and helpful. Unfortunately the airport directions to this gate were a mess and the check in staff did not alert us to the confusing signage or any proactive information about the lounge. On board the flight, food and drinks were decent but average. Comparatively, SASs new business catering on this route shines above both in quality and service

we originally had premium economy seats when we booked, but because we were forced to re-book because the first leg of our journey was delayed for several hours, we had to fly economy. Less room, less comfortable.

Flight was fine. We were in business class, so lie-flat seats were appreciated. Kids were in premium and said it was nice. Flight was delayed by 3 hours, so we missed everything we had planned in London the first day.

Gates were changed at Heathrow with nothing show on the board about 200 plus people needed to take a tram to another section of the terminal. At JFK airport, we had to wait 1 hour(!) on the tarmac after a 7 hour flight to get a gate to deboard!!

I am very disappointed with the way my seat reservation was handled. My husband and I purchased Business Class tickets and also paid extra to reserve our seats. However, our reserved seats were changed without our consent, and we were assigned different seats, separating us. Since we paid specifically for reserved seats, the airline did not provide the service we purchased. I would therefore like to request a full refund of the seat reservation fees. I would appreciate your prompt response and resolution to this matter. Thank you.

I can't believe you have to pay L 3.20 for a Cup of British tea on an airlines with the name British on the plane.

Long haul flight and was really good. Comfortable plane and seats. Really great service all round and always willing to help. Lovely food and drinks (Tanqueray is my favourite Gin). Media was great and helped for the long journey.

Flight was good but couldn’t sleep because bed was so uncomfortable.

This was the return leg of my trip. Tried to do online check in several times, both on BA App and online but it kept saying " it was not possible, check in at the airport". Got to Airport 3 hours before the flight to be told the flight was overbooked and I was on standby because I hadn't checked in online!!! Was told I could go and wait at the gate in case of a no show but would actually be booked on the next flight in 4 hours. At the gate I did actually get in to the original plane... And had 2 empty seats next to me.. So much for overbooked. To add insult to injury, my baggage did not arrive in LHR and was finally delivered over 24 hours later. I don't travel with BA very often.. This experience will make it even less likely, particularly as my wife had exactly the same issue 2 days later.

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
Winchester
Slough
Folkestone
Stansted
Croydon
Newport
Colchester
Chichester
Maidstone
Crawley
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Hastings
Bedford
Richmond

Everything you need to know for your flight to London

Cabin class types available on flights to London