Cheap Flights from London to Castries

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Flight deals from London to Castries

Looking for a cheap last-minute deal or the best return flight from London to Castries? If you want to travel next month, return fares start from Rs253,943. Find the lowest prices on one-way and return tickets right here.

Castries.Rs111,593 per passenger.Departing Thu, 27 Aug.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Thu, 27 Aug, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs111,593, select.

Castries.Rs123,113 per passenger.Departing Fri, 25 Sep.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Fri, 25 Sep, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs123,113, select.

Castries.Rs130,652 per passenger.Departing Tue, 28 Jul.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Tue, 28 Jul, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs130,652, select.

Castries.Rs152,128 per passenger.Departing Thu, 21 Jan.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Luton on Thu, 21 Jan, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs152,128, select.

Castries.Rs153,167 per passenger.Departing Tue, 10 Nov.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Tue, 10 Nov, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs153,167, select.

Castries.Rs153,465 per passenger.Departing Thu, 4 Mar.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Thu, 4 Mar, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs153,465, select.

Castries.Rs155,755 per passenger.Departing Fri, 5 Feb.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departs from London Heathrow on Fri, 5 Feb, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs155,755, select.

Castries.Rs156,546 per passenger.Departing Wed, 28 Oct.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Gatwick on Wed, 28 Oct, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs156,546, select.

Castries.Rs156,676 per passenger.Departing Tue, 1 Dec.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departs from London Heathrow on Tue, 1 Dec, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs156,676, select.

Castries.Rs157,880 per passenger.Departing Sun, 4 Apr.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departs from London Heathrow on Sun, 4 Apr, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs157,880, select.

Castries.Rs173,464 per passenger.Departing Sat, 23 Jan.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Sat, 23 Jan, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs173,464, select.

Castries.Rs173,464 per passenger.Departing Fri, 12 Mar.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Fri, 12 Mar, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs173,464, select.

Castries.Rs173,467 per passenger.Departing Tue, 10 Nov.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Tue, 10 Nov, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs173,467, select.

Castries.Rs173,480 per passenger.Departing Fri, 4 Sep.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Fri, 4 Sep, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs173,480, select.

Castries.Rs173,775 per passenger.Departing Fri, 14 Aug.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Fri, 14 Aug, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs173,775, select.

Castries.Rs174,191 per passenger.Departing Mon, 26 Oct.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Mon, 26 Oct, arriving in St Lucia Hewanorra.Price includes taxes and charges.From Rs174,191, select.

Find the cheapest month to fly from London to Castries

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

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Direct flights from London to Castries

Alternative London to Castries routes

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

St Lucia Vigie

1km from central Castries

Closest

from Rs152,334

Search flights

St Lucia Hewanorra

30km from central Castries

Cheapest

from Rs111,593

Search flights

London to Castries: Flight information

The things to know before you go.

Cheapest flight found	Rs111,593
Cheapest month to fly	August
Average flight time	8 hrs, 57 mins
Most popular airline	Qatar Airways
Average flights per week	16

Finding cheap flights from London to Castries: Frequently asked questions

How many airports are there in Castries?

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.

How much are return flights from London to Castries?

The best price we found for a return flight from London to Castries is Rs186,362. 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.

How long does it take to fly from London to Castries?

8 hours and 57 minutes is the average flight time from London to Castries.

Which airlines fly direct from London to Castries?

Qatar Airways and British Airways fly direct from London to Castries.

How many flights are there a week from London to Castries?

As of June 2026, there are 16 flights per week flying from London to Castries.

When is the cheapest time to fly from London to Castries?

The cheapest month to fly from London to Castries is usually September.

Which is the cheapest airport to fly into in Castries?

If you're flying from London, the cheapest airport near Castries is St Lucia Hewanorra – which is 30.4 km away from the centre of Castries. We've found flights into this airport from Rs186,362.

Which upcoming date is cheapest to fly from London to Castries on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Castries on Sunday, 20 September 2026.

Can I get a direct flight from London to Castries?

Yes – the average flight time is 8 hours and 57 minutes.

How can I get the best flight deal from London to Castries?

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.

When is the best time to book flights to Castries?

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.

What’s the weather like in Castries?

In June, 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.

Which is the cheapest airline to fly from London to Castries with?

The cheapest airline that flies to Castries is British Airways .

Flying from London to Castries: what you need to know

Take your pick of numerous airports when planning a flight from London to Castries. Check out your options for jetting out of London from London Heathrow Airport (LHR), London Gatwick Airport (LGW) or London Stansted Airport (STN). London Luton Airport (LTN) and London City Airport (LCY) also service London.
Touch down in Castries at St Lucia Hewanorra Airport (UVF) or St Lucia Vigie Airport (SLU).
The average time for a direct London to Castries flight is 9 hours.
Castries is four hours behind London and follows the UTC-4 timezone.
For a stress-free start to your trip, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your London to Castries flight.
Flying during a peak time such as July? Major public holidays and other popular seasons can lead to longer lines and delays at check-in and security. Play it safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

How to find the cheapest flights from London to Castries

Don't leave everything to the last moment. You're more likely to find cheap London to Castries flights if you book early. Airlines often offer some excellent early bird rates.
The 'Whole month' tool shows you the cheapest plane tickets from London to Castries across each month. It's a good way to find a bargain if your plans aren't set in stone.
Save time searching for cheap flights from London to Castries by creating a Price Alert. You'll get an email or notification through the app when a special offer becomes available.
Save on your London to Castries flight with the help of our filters. Select your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

Flying from London

London Heathrow Airport (LHR)

Stopovers are the ideal opportunity to take a travel break — and maybe even explore another city. When searching for London to Castries flights leaving from London Heathrow Airport, deselect the 'Direct flights only' box to see where you can visit along the way. Popular options include:
- Atlanta Hartsfield-Jackson Airport (ATL)
- New York John F. Kennedy Airport (JFK)
- Bridgetown Airport (BGI)
Travelling from central London to LHR takes around 25 minutes on public transport. If you ride-share, drive or get a taxi, you'll cover the 26 kilometres in 45 minutes or so, depending on traffic conditions.
After an easy start to your journey? Stay near London Heathrow Airport. Whether you're taking an early flight from London to Castries or want to avoid feeling rushed, these hotels are perfect:
Of all flights departing from London Heathrow Airport, 78% arrive on time at their destination.

London Gatwick Airport (LGW)

Rather fly from London Gatwick Airport (LGW)? This popular hub offers nonstop flights from London to Castries, seamlessly connecting you to St Lucia Hewanorra Airport (UVF).
From LGW, you can lock in a direct London to Castries plane ticket with British Airways.
Think about adding a stop at New York John F. Kennedy Airport (JFK). It's a major stopover on a London to Castries flight leaving London Gatwick Airport. Use a long layover to get out and explore, or take advantage of a short break to grab a bite to eat at the airport.
LGW is about 40 kilometres from central London. It takes 1 hour 5 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 45 minutes.
You're going on holiday, so why not spend an extra night away? Consider checking in to one of these hotels near London Gatwick Airport the day before your flight from London to Castries:
Flights from London Gatwick Airport have a track record for punctuality, with 83% of them touching down on schedule.

London Stansted Airport (STN)

The trip to STN from central London is around 45 minutes on public transport. If you're planning to travel by car, it'll take you about 1 hour 5 minutes to cover the 48 kilometres or so.
Make catching an early London to Castries flight the easiest part of your journey. Book a room at one of these accommodation options near London Stansted Airport and get to your gate with time to spare:
STN has a reliable on-time arrivals performance of 80%, so you can rely on your flight to stay on schedule and reach your final stop as expected.

Arriving in Castries

St Lucia Hewanorra Airport (UVF)

The distance from St Lucia Hewanorra Airport (UVF) to central Castries is roughly 31 kilometres. It'll take you about 1 hour 30 minutes to get to the centre driving.
If you're using public transport, expect a journey time of roughly 2 hours.
The last thing you need is a long journey to your hotel if you're landing late on a flight from London to Castries. Reserve one of these accommodation options near UVF instead:
Follow your own route with a St Lucia Hewanorra Airport rental car. Pick up a set of wheels from Drive A Matic, Sixt or Final Rentals and venture far and wide through Castries and beyond.
To get the lowest price, reserve your vehicle from St Lucia Hewanorra Airport about one week ahead of your London to Castries flight.

St Lucia Vigie Airport (SLU)

After your flight from London to Castries has arrived, you can reach the city centre in about 10 minutes by car. Central Castries is approximately 2 kilometres from St Lucia Vigie Airport (SLU).
If you choose to travel on public transport, you'll get to the city centre in 15 minutes or so.
After your flight from London to Castries, settle in at a hotel close to SLU. These are some great accommodation options that'll help you switch to relaxation mode:
The fastest way to reach your destination is with a St Lucia Vigie Airport rental car. Grab your wheels from Drive A Matic, Final Rentals or Sixt and make a speedy getaway.
Lock in the best price by booking your ride from SLU one week ahead of time. You can also expect to have a wider range of vehicles.

Best time to go to Castries

September is the quietest month for flights from London to Castries, while December is the most popular. Work out the best time to go to Castries based on whether you prefer a laid-back vibe or a more bustling atmosphere.
When booking your London to Castries tickets, think about what kind of weather you prefer. September is the warmest month in Castries, with temperatures ranging from 26ºC to 30ºC.
If you like cooler conditions, search for a cheap flight from London to Castries in February when temperatures average between 24ºC and 28ºC.

More about Castries

When it comes to looking for somewhere to rest your head, you'll find the top stays in Castries right here. Check out these options once you've locked in your flight from London to Castries:
There are so many things to discover in this city it can be tricky to work out where to start. Vigie Beach, Malabar Beach and Morne Fortune are leading attractions which should be on every Castries itinerary.