578 € Cheap Flights from London Gatwick to Castries

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Flight deals from London Gatwick to Castries

Looking for a cheap last-minute deal or the best return flight from London Gatwick to Castries? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London Gatwick to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Gatwick to Castries flights are currently cheapest in March.

Direct flights from London Gatwick to Castries

Alternative London Gatwick to Castries routes

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

London to Castries: Flight information

The things to know before you go.
Cheapest flight found578 €
Cheapest month to flyMarch
Average flight time8 hrs, 57 mins
Most popular airlineQatar Airways
Average flights per week15

Finding cheap flights from London Gatwick to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a return flight from London Gatwick to Castries is 578 €. 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 57 minutes is the average flight time from London Gatwick to Castries.
Qatar Airways and British Airways fly direct from London Gatwick to Castries.
As of July 2025, there are 15 flights per week flying from London Gatwick to Castries.
The cheapest month to fly from London Gatwick to Castries is usually March.
If you're flying from London Gatwick Airport, the cheapest airport near Castries is St Lucia Hewanorra – which is 30.5 km away from the centre of Castries. We've found flights into this airport from 578 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Gatwick Airport to Castries on Monday, 9 March 2026.
Yes – the average flight time is 8 hours and 57 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 Castries 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 Castries is around 40 days in advance, so don’t leave your flight to the last minute.
In July, the average temperature is usually around 28°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.
Currently, British Airways offers the cheapest flight tickets to Castries.

Travelling from London Gatwick Airport (LGW) to Castries: what you need to know

  • The timezone in Castries is UTC-4. The city is four hours behind London, where London Gatwick Airport is located.

  • London Gatwick Airport (LGW) to Hewanorra Airport (UVF) is the most popular route, with six weekly flights to pick from. You can travel from LGW to UVF at 10:00 with British Airways.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to catch your LGW to Castries flight.

  • Travelling during a peak time like school or public holidays? Expect longer queues at security and check-in. Give yourself extra leeway and arrive up to four hours before international flights and two hours before domestic departures.

  • Begin your journey at LGW and fly straight to Hewanorra Airport (UVF). That will be your arrival point when searching for London Gatwick Airport to Castries tickets.

  • Keep an eye out for promotions from British Airways. This carrier operates direct flights from London Gatwick Airport to Castries.

  • Stopovers are a great opportunity to explore a new city or just take a break during your trip. When booking your plane ticket from LGW to Castries, uncheck 'Direct flights only' to explore all potential stops. John F. Kennedy International Airport (JFK) is one of your options.

  • The journey from central London to LGW takes about 30 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 40 kilometres in 1 hour 20 minutes or so, depending on traffic.

  • Searching for a hotel close to LGW? If you're catching an early flight from London Gatwick Airport to Castries, these accommodation options put the terminal practically at your doorstep:

  • When it comes to the on-time performance of London Gatwick Airport, data shows 69.26% of flights stick to their scheduled arrival time.

How to find the cheapest flights from London Gatwick Airport (LGW) to Castries

  • 304 € is currently the lowest price for a one-way London Gatwick Airport to Castries flight. A return plane ticket starts from 578 €. These fares can change based on availability and demand.

  • Book one month before travelling. Pricing trends suggest that this is the ideal window for finding cheap flights from LGW to Castries.

  • The best month for scoring cheap London Gatwick Airport to Castries tickets is May. Use the 'Whole month' tool to compare prices, then select the dates offering the lowest fares.

  • Finding a cheap flight from LGW to Castries is a breeze with Price Alerts. Simply set up one of these automatic notifications and we'll notify you when a cheaper option becomes available.

  • Find an affordable flight from London Gatwick Airport to Castries with the help of our filters. Select your ideal duration, departure time and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Castries

George F. L. Charles Airport (SLU)

  • The distance from George F. L. Charles Airport (SLU) to central Castries is roughly 3 kilometres. It takes about 5 minutes to reach the centre driving.

  • Travelling on public transport will take you around 40 minutes.

  • The last thing you want is a long journey to your hotel if you're getting in late on a flight from London Gatwick Airport to Castries. Check in to one of these accommodation options near SLU instead:

  • Travel at your own speed with a George F. L. Charles Airport rental car. Pick up a set of wheels from Drive A Matic, Final Rentals or Sixt and experience more of Castries and beyond.

  • Booking your ride from George F. L. Charles Airport around one week in advance of your flight from LGW to Castries can help you lock in the best possible rate.

Hewanorra Airport (UVF)

  • After your flight from London Gatwick Airport to Castries has hit the runway, you can make your way to the city centre in about 1 hour 10 minutes by car. Central Castries is roughly 56 kilometres from Hewanorra Airport (UVF).

  • You'll find some great places to drop your things at near UVF. Kick back and get cosy after your LGW to Castries flight at one of these well-located options:

  • Forget about public transport timetables or waiting forever for a cab. Pick up a Hewanorra Airport rental car and take your journey in whatever direction you like. Compare availability and rates from Drive A Matic, Sixt and Final Rentals.

  • Avoid paying extra. Booking your ride one week before your arrival at UVF can help you lock in a better rate.

Best time to go to Castries

  • Carefully consider your dates before securing your flight from London Gatwick Airport to Castries. The city comes alive during high season, but prices are typically higher and major attractions can be crowded. Plan your trip to Castries in the off-season for a quieter vibe.

  • The warmest month in Castries is September, with temperatures ranging between 26ºC (79ºF) and 30ºC (86ºF). Lock in your London Gatwick Airport to Castries plane ticket then if that's the weather you find most pleasant.

  • Look for cheap tickets from LGW to Castries in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 24ºC (75ºF) and 28ºC (82ºF) on average.

More about Castries

  • Start your Castries trip right by choosing the perfect place to stay. Once you've booked your flight from London Gatwick Airport to Castries, browse our selection of hotels including:

  • All great holidays should include a little sightseeing. Morne Fortune, Derek Walcott Square and Immaculate Conception Church are essential stops on your Castries itinerary.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.