Skyscanner home

858 € Cheap Flights from Castries to London

Compare Castries to London flight deals

Find the cheapest month or even day of the year to fly to London

Book the best London fare with no extra fees

Flight deals from Castries to London

Looking for a cheap last-minute deal or the best return flight from Castries to London? If you want to travel next month, return fares start from 925 €. Find the lowest prices on one-way and return tickets right here.
London.858 € per passenger.Departing Fri, 4 Sep, returning Tue, 8 Sep.Return flight with jetBlue and Aer Lingus.Outbound indirect flight with jetBlue, departs from St Lucia Hewanorra on Fri, 4 Sep, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departs from London Heathrow on Tue, 8 Sep, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 858 €, select.
London.861 € per passenger.Departing Thu, 29 Oct, returning Sun, 1 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Thu, 29 Oct, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Sun, 1 Nov, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 861 €, select.
London.861 € per passenger.Departing Tue, 1 Dec, returning Sun, 20 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Tue, 1 Dec, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Sun, 20 Dec, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 861 €, select.
London.861 € per passenger.Departing Mon, 28 Dec, returning Tue, 12 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Mon, 28 Dec, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Tue, 12 Jan, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 861 €, select.
London.861 € per passenger.Departing Sat, 14 Nov, returning Tue, 24 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Sat, 14 Nov, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Tue, 24 Nov, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 861 €, select.
London.861 € per passenger.Departing Sat, 24 Oct, returning Tue, 3 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Sat, 24 Oct, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Tue, 3 Nov, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 861 €, select.
London.861 € per passenger.Departing Thu, 5 Nov, returning Sun, 8 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Thu, 5 Nov, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Sun, 8 Nov, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 861 €, select.
London.863 € per passenger.Departing Thu, 1 Oct, returning Mon, 5 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Thu, 1 Oct, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Mon, 5 Oct, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 863 €, select.
London.863 € per passenger.Departing Fri, 5 Mar, returning Sun, 14 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Fri, 5 Mar, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Sun, 14 Mar, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 863 €, select.
London.863 € per passenger.Departing Mon, 21 Sep, returning Sat, 26 Sep.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Mon, 21 Sep, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Sat, 26 Sep, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 863 €, select.
London.863 € per passenger.Departing Mon, 28 Sep, returning Sat, 3 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Mon, 28 Sep, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Sat, 3 Oct, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 863 €, select.
London.864 € per passenger.Departing Mon, 1 Feb, returning Mon, 8 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Mon, 1 Feb, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Mon, 8 Feb, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 864 €, select.
London.865 € per passenger.Departing Wed, 25 Nov, returning Sun, 3 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Wed, 25 Nov, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Sun, 3 Jan, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 865 €, select.
London.865 € per passenger.Departing Thu, 21 Jan, returning Mon, 25 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Thu, 21 Jan, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Mon, 25 Jan, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 865 €, select.
London.869 € per passenger.Departing Sat, 22 May, returning Thu, 10 Jun.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Sat, 22 May, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Thu, 10 Jun, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 869 €, select.
London.902 € per passenger.Departing Fri, 4 Sep, returning Sun, 6 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Fri, 4 Sep, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Sun, 6 Dec, arriving in St Lucia Hewanorra.Price includes taxes and charges.From 902 €, select.

Find the cheapest month to fly from Castries to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Castries to London flights are currently cheapest in September.
Jul
from 1.679 €
Aug
from 925 €
Sep
from 858 €
Oct
from 863 €
Nov
from 861 €
Dec
from 861 €
Jan
from 865 €
Feb
from 864 €
Mar
from 863 €
Apr
from 966 €
May
from 1.701 €
Jun
Find prices

Direct flights from Castries to London

Alternative Castries to London routes

Looking for the cheapest, fastest or easiest route from Castries to London? You could fly into the following airports instead.

London City

12km from central London
Closest
from 1.342 €
Search flights

London Heathrow

23km from central London
Cheapest
from 858 €
Search flights

London Gatwick

40km from central London
from 861 €
Search flights

London Luton

45km from central London
from 1.005 €
Search flights

London Stansted

49km from central London
from 986 €
Search flights

London Southend

57km from central London
Search flights

Castries to London: Flight information

The things to know before you go.
Cheapest flight found858 €
Cheapest month to flySeptember
Average flight time8 hrs, 20 mins
Most popular airlineQatar Airways
Average flights per week21

Finding cheap flights from Castries to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Castries to London is 858 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
8 hours and 20 minutes is the average flight time from Castries to London.
Qatar Airways and British Airways fly direct from Castries to London.
As of July 2026, there are 84 flights per week flying from Castries to London.
The cheapest month to fly from Castries to London is usually September.
If you're flying from Castries, the cheapest airport near London is London Heathrow – which is 22.9 km away from the centre of London. We've found flights into this airport from 858 €.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Castries to London on Friday, 4 September 2026.
Yes – the average flight time is 8 hours and 20 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

In July, the average temperature is usually around 17°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
The cheapest airline that flies to London is jetBlue. And the cheapest airline that flies to London Heathrow Airport is British Airways.

Flying from Castries to London: what you need to know

  • There are two main airports to choose from in Castries. Explore your options leaving from St Lucia Hewanorra Airport (UVF) or St Lucia Vigie Airport (SLU) when searching for a flight from Castries to London.

  • London has a number of airports you can fly into. Come in for landing at London Heathrow Airport (LHR), London Gatwick Airport (LGW) or London Stansted Airport (STN). Alternatively, arrive at London Luton Airport (LTN) or London City Airport (LCY).

  • Around 8 hours 15 minutes is how long you'll be travelling on a direct Castries to London flight.

  • London's timezone is UTC+0, which makes London four hours ahead of Castries.

  • The most popular route for flights from Castries to London is from St Lucia Hewanorra Airport (UVF) to London Gatwick Airport (LGW). You can select from six weekly services between these two airports. If you want to get going as soon as possible, the earliest flight from UVF to LGW is the 20:25 British Airways service. If you have other commitments or plans on your day of travel, the last scheduled departure is at 22:10 with British Airways.

  • To ensure you board your Castries to London flight, leave enough time to check in and drop off your luggage. Turning up two hours ahead of international departures and an hour before domestic flights is the general rule to follow.

  • During popular months like December, it's best to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead of an international flight when you travel during a peak period in general.

How to find the cheapest flights from Castries to London

  • Book one month before you want to travel. Research into pricing trends suggests this is the ideal window for finding cheap Castries to London flights.

  • Plan your trip for June. That's the best month for landing a great bargain on plane tickets from Castries to London. If you're flexible with your travel dates, use the 'Whole month' tool to see the cheapest price across every month.

  • There's no need to check every day to see if fares have dropped when you set up a Price Alert. We'll tell you as soon as there's a better deal on cheap flights from Castries to London.

  • Tailor your travel plans using filters. Choose your ideal departure and arrival times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' Castries to London flights.

Flying from Castries

St Lucia Hewanorra Airport (UVF)

  • Set out from St Lucia Hewanorra Airport (UVF) on a nonstop flight from Castries to London. From UVF, you can land directly at London Gatwick Airport (LGW).

  • Reserve your Castries to London plane tickets with British Airways. This carrier is a top choice for direct flights from UVF.

  • Located around 31 kilometres from central Castries, UVF can be reached in about 1 hour 30 minutes by car, depending on traffic. The journey by public transport is roughly 2 hours.

  • Catching an early flight from Castries to London? Avoid the stress of rushing to the terminal (and enjoy a little extra shut-eye) by choosing one of these stays close to St Lucia Hewanorra Airport:

  • St Lucia Hewanorra Airport scores top marks for on-time performance. 84% of flights that take off from UVF reach their destination on time.

St Lucia Vigie Airport (SLU)

  • Visit friends or family or just take a moment to stretch your legs with a stopover. If you'd like to break up your Castries to London flight, check out these options when leaving from St Lucia Vigie Airport:

    • Port Of Spain Airport (POS)

    • Bridgetown Airport (BGI)

    • Saint John's Airport (ANU)

  • SLU is around 2 kilometres from central Castries. It takes 10 minutes or so to get to the airport by car from the city centre. Public transport takes roughly 15 minutes.

  • Want to enjoy an extra night away before catching your flight from Castries to London? Kick back in a hotel near St Lucia Vigie Airport before your holiday officially starts. Stay at one of these accommodation options:

  • As far as flight punctuality goes, St Lucia Vigie Airport has an on-time arrival rate of 72%.

Arriving in London

London Heathrow Airport (LHR)

London Gatwick Airport (LGW)

  • London Gatwick Airport (LGW) is roughly 40 kilometres from the centre of London. After your flight from Castries to London, it'll take you approximately 1 hour 5 minutes to get to the heart of the city in a ride-share or taxi.

  • You can expect the trip to take approximately 45 minutes on public transport.

  • After your flight from Castries to London, unwind at a hotel near LGW. These are some comfortable options that'll help you slip into relaxation mode:

  • The fastest way to get to where you're going is with a London Gatwick Airport rental car. Pick up your wheels from Green Motion, U-Save or Drivalia and hit the road in a heartbeat.

  • Lock in the best price by reserving your ride from LGW three weeks in advance. You'll also have access to a wider selection of vehicles.

London Stansted Airport (STN)

  • Travel to the centre after your flight from Castries to London has landed. Central London is around 48 kilometres from London Stansted Airport (STN) and takes roughly 1 hour 5 minutes to reach by taxi or ride-share.

  • If you travel by public transport, the journey time is around 45 minutes.

  • Find a hotel close to STN and get from baggage claim to bedtime in a flash. Whether you have a late Castries to London flight or just want a hassle-free arrival, these stays offer a quick route to a good night's sleep:

  • Whether you're looking for a budget-friendly compact for a solo escape or a roomy SUV to fit everyone and their gear, you'll find the right London Stansted Airport rental car for you. Check out wheels available from suppliers such as Green Motion, Drivalia and Europcar.

  • Plan ahead and put that extra money in your pocket. Book your vehicle from STN four weeks before your flight from Castries to London to access the best rates.

Best time to go to London

  • July is the most popular month for flights from Castries to London. To travel when it's less crowded, visit London in March.

  • Before locking in your Castries to London tickets, consider what kind of weather works for you. July is the warmest month in London, with temperatures ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • January sees average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap flights from Castries to London around that time if you'd rather travel in cooler conditions.

More about London

Explore more of the United Kingdom

  • London has plenty going for it, but there are so many other parts of the United Kingdom just waiting to be discovered. Around 257 kilometres northwest of London, a trip to Manchester will keep you on the go. Start with leading sights like Manchester United Museum & Stadium Tour, The Homes of Football and Science and Industry Museum.

  • Around 161 kilometres northwest of London, Birmingham is another essential stop in the United Kingdom. Experience this destination's highlights firsthand at Birmingham Museum & Art Gallery, Birmingham Hippodrome and Bournville Experience.

Plan the rest of your trip from Castries to London

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.