£644 Cheap Flights from Castries (SLUA) to London (LOND)

Q: How many airports are there in London?

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.

Q: How much are return flights from Castries to London?

The best price we found for a return flight from Castries to London is £644. 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.

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

8 hours and 15 minutes is the average flight time from Castries to London.

Q: Which airlines fly direct from Castries to London?

Qatar Airways, British Airways and Virgin Atlantic fly direct from Castries to London.

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

As of April 2025, there are 24 flights per week flying from Castries to London.

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

The cheapest month to fly from Castries to London is usually April 2025.

Q: Which is the cheapest airport to fly into in London?

If you're flying from Castries, the cheapest airport near London is London Heathrow – which is 14.2 miles away from the centre of London. We've found flights into this airport from £644 .

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

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Castries to London on Sunday, 20 July 2025 .

Q: Can I get a direct flight from Castries to London?

Yes – the average flight time is 8 hours and 15 minutes.

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

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.

Compare Castries to London flight deals

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Flight deals from Castries to London

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

London.£644 per passenger.Departing Sun, 20 Jul, returning Sun, 2 Nov.Return flight with WestJet and Virgin Atlantic.Outbound indirect flight with WestJet, departs from St Lucia Hewanorra on Sun, 20 Jul, arriving in London Heathrow.Inbound indirect flight with Virgin Atlantic, departs from London Heathrow on Sun, 2 Nov, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £644, select.

London.£709 per passenger.Departing Thu, 1 May, returning Fri, 30 May.Return flight with jetBlue and Norse Atlantic Airways (UK).Outbound indirect flight with jetBlue, departs from St Lucia Hewanorra on Thu, 1 May, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Fri, 30 May, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £709, select.

London.£713 per passenger.Departing Thu, 26 Jun, returning Sun, 26 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Thu, 26 Jun, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Sun, 26 Oct, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £713, select.

London.£714 per passenger.Departing Sun, 6 Jul, returning Sun, 5 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Sun, 6 Jul, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Sun, 5 Oct, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £714, select.

London.£716 per passenger.Departing Mon, 19 May, returning Mon, 22 Sep.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Mon, 19 May, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Mon, 22 Sep, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £716, select.

London.£716 per passenger.Departing Fri, 5 Sep, returning Fri, 12 Sep.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Fri, 5 Sep, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Fri, 12 Sep, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £716, select.

London.£716 per passenger.Departing Mon, 19 May, returning Mon, 30 Jun.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Mon, 19 May, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Mon, 30 Jun, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £716, select.

London.£716 per passenger.Departing Mon, 26 May, returning Mon, 18 Aug.Return flight with British Airways.Outbound direct flight with British Airways departs from St Lucia Hewanorra on Mon, 26 May, arriving in London Gatwick.Inbound direct flight with British Airways departs from London Gatwick on Mon, 18 Aug, arriving in St Lucia Hewanorra.Price includes taxes and charges.From £716, 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 May.

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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.

Castries to London: Flight information

The things to know before you go.

Cheapest flight found	£644
Cheapest month to fly	July
Average flight time	8 hrs, 15 mins
Most popular airline	Qatar Airways
Average flights per week	22

Finding cheap flights from Castries to London: Frequently asked questions

How many airports are there in London?

How much are return flights from Castries to London?

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

Which airlines fly direct from Castries to London?

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

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

Which is the cheapest airport to fly into in London?

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

Can I get a direct flight from Castries to London?

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

When is the best time to book flights to London?

What’s the weather like in London?

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

Travelling from Castries to London: what you need to know

Get your holiday planning started by considering the departure point for your flight from Castries to London. Hewanorra Airport (UVF) and George F. L. Charles Airport (SLU) are the two main airports in Castries.
Come in for landing at London Heathrow Airport (LHR), London Gatwick Airport (LGW) or one of London's other airports. They include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).
8 hours 24 minutes is the average duration of a direct flight from Castries to London. Operating on the UTC+0 timezone, London is 4 hours ahead of Castries.
With 9 weekly flights between the two airports, Hewanorra Airport (UVF) to London Gatwick Airport (LGW) is the most popular route. Board the first flight from Castries to London with British Airways at 20:25. If you prefer to get more out of your day before leaving, the latest departure from UVF to LGW is with British Airways at 22:05.
For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you can comfortably board your flight from Castries to London.
During popular months such as July, you'll want to get to the airport earlier than normal. Plan to arrive two hours before a domestic departure and four hours ahead of international flights when you fly during peak periods in general.
You don't need a visa for United Kingdom if you hold a passport from Saint Lucia and are visiting for tourism purposes. Visa and travel documentation requirements are subject to change. So before reserving your cheap flights from Castries to London, check with your airline and your destination country's local consulate or embassy for the most up-to-date information.

Flying from Castries

Hewanorra Airport (UVF)

Direct flights from Castries to London depart from Hewanorra Airport (UVF). UVF offers nonstop services to two London terminals, London Heathrow Airport (LHR) and London Gatwick Airport (LGW).
British Airways is a popular airline that operates direct flights from Castries to London taking off from UVF.
UVF is about 35 miles from central Castries. If you're driving, catching a cab or ride-sharing from the centre, it'll take 1 hour and 9 minutes or so to get there, depending on traffic conditions.
Want a hassle-free start to your break? Stay near Hewanorra Airport. Whether you're taking an early flight from Castries to London or just don't want to be rushed, these hotels are the answer:

George F. L. Charles Airport (SLU)

Take some time to stretch your legs during your flight from Castries to London with a stopover. Grantley Adams International Airport (BGI) is one of the options between George F. L. Charles Airport and London.
You can get to SLU from the centre of Castries in approximately 6 minutes by car (depending on traffic). The ride by public transport will take roughly 40 minutes to cover the 2 miles or so.
Want to treat yourself to an extra night away before catching your flight from Castries to London? Kick back in a hotel near George F. L. Charles Airport before your holiday officially begins. Here's where you can stay:

Arriving in London

London Heathrow Airport (LHR)

London Heathrow Airport (LHR) to central London is approximately 19 miles. It takes about 57 minutes to get to the centre driving.
When travelling on public transport, expect a journey of around 1 hour and 1 minute.
The last thing you want is a lengthy journey to your hotel if you're getting in late on a flight from Castries to London. Check in to one of these accommodation options near LHR instead:

London Gatwick Airport (LGW)

As soon as your flight from Castries to London has arrived, you can get to the city centre in about 1 hour and 19 minutes by car. Central London is roughly 50 miles from London Gatwick Airport (LGW).
You can also travel using public transport, which typically takes 1 hour and 26 minutes.
After your flight from Castries to London, kick back at a hotel near LGW. These are some comfortable accommodation options that'll help you sink into relaxation mode:

How to find the cheapest flights from Castries to London

At the moment, £321 is the lowest price we've seen for a one-way ticket from Castries to London. The cheapest price for a return flight is £644. Remember fares may change due to demand at the time of booking.
Book 10 months before travelling. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from Castries to London.
June is the cheapest month for tickets from Castries to London. If you'd like to travel at a different time of year, the 'Whole month' tool will show you the lowest prices for every month.
Create a Price Alert for cheap tickets from Castries to London. You don't need to look every day to find out if prices have dropped. We'll let you know the moment the price changes.
Use filters to tailor your flights from Castries to London. Select your preferred departure and arrival times, airlines and number of stops. Or sort your results by 'Cheapest' to find the best deals.

Best time to go to London

February is the quietest month for flights from Castries to London, while July is the busiest. Figure out the ideal time to go to London based on whether you prefer a bustling atmosphere or a more laid-back vibe.
The warmest month in London is July, with temperatures ranging between 11ºC and 26ºC. Book your flights from Castries to London in this month if you enjoy this type of weather.
If you'd rather travel in cooler conditions, book a cheap ticket from Castries to London in January when temperatures average between 0ºC and 9ºC.

More about London

When it comes to looking for somewhere to lay your head, you'll find the top stays in London right here. Explore these hotels after you've booked your flight from Castries to London:
There are so many things to see and do in this city it can be hard to know where to start. Big Ben, The British Museum and Buckingham Palace are highlights which should be on any good London itinerary.

Complete your London trip with a car rental

Finding you a cheap flight from Castries to London isn't our only party trick. Check out our car rentals in London and see the sights your way. We find deals from trusted car rental companies and put them all in one place. You can instantly compare offers and then book with no fees.