C$601 Cheap Flights from London (LOND) to Castries (SLUA)

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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 C$1,146. Find the lowest prices on one-way and return tickets right here.

Castries.C$601 per passenger.Departing Fri., Jun. 19.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Luton on Fri., Jun. 19, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$601, select.

Castries.C$620 per passenger.Departing Sat., Aug. 29.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from London Heathrow on Sat., Aug. 29, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$620, select.

Castries.C$625 per passenger.Departing Fri., Sep. 11.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Fri., Sep. 11, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$625, select.

Castries.C$665 per passenger.Departing Fri., Jul. 24.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Fri., Jul. 24, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$665, select.

Castries.C$808 per passenger.Departing Mon., Jan. 11.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Luton on Mon., Jan. 11, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$808, select.

Castries.C$820 per passenger.Departing Mon., Nov. 16.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Luton on Mon., Nov. 16, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$820, select.

Castries.C$821 per passenger.Departing Mon., Feb. 1.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Mon., Feb. 1, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$821, select.

Castries.C$829 per passenger.Departing Fri., Oct. 2.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Fri., Oct. 2, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$829, select.

Castries.C$839 per passenger.Departing Wed., Apr. 14.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Gatwick on Wed., Apr. 14, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$839, select.

Castries.C$851 per passenger.Departing Thu., Jun. 11.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Thu., Jun. 11, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$851, select.

Castries.C$854 per passenger.Departing Wed., Mar. 10.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Gatwick on Wed., Mar. 10, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$854, select.

Castries.C$858 per passenger.Departing Wed., Dec. 2.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Gatwick on Wed., Dec. 2, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$858, select.

Castries.C$879 per passenger.Departing Fri., Sep. 11.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Fri., Sep. 11, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$879, select.

Castries.C$879 per passenger.Departing Sat., Oct. 3.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Sat., Oct. 3, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$879, select.

Castries.C$879 per passenger.Departing Thu., Aug. 20.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Thu., Aug. 20, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$879, select.

Castries.C$879 per passenger.Departing Fri., Jan. 15.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Gatwick on Fri., Jan. 15, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$879, 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 June.

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Which airlines fly 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 C$796

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St Lucia Hewanorra

31km from central Castries

Cheapest

from C$601

Search flights

London to Castries: Flight information

The things to know before you go.

Cheapest flight found	C$601
Cheapest month to fly	June
Average flight time	8 hrs, 57 mins
Most popular airline	Qatar Airways
Average flights per week	272

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 C$945. 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 272 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 August.

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 30.5 km away from the centre of Castries. We've found flights into this airport from C$945.

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 Thursday, August 27, 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

You can choose from numerous airports when organizing your flight from London to Castries. Check out your options for leaving London from London Heathrow Airport (LHR), London Gatwick Airport (LGW) or Stansted Airport (STN). London Luton Airport (LTN) and London City Airport (LCY) also service London.
Arrive in Castries at Hewanorra Airport (UVF) or George F. L. Charles Airport (SLU).
The average time for a direct flight from London to Castries is 9 hours 5 minutes. Castries's timezone is UTC-4, making Castries 4 hours behind London.
For stress-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your flight from London to Castries.
During popular months like July, it's a good idea 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 high season in general.
If you have a passport from United Kingdom and want to travel to Saint Lucia for tourism purposes, you won't need a visa. However, entry and visa requirements may differ based on the length and purpose of your stay and can be subject to change. For the latest information, check with your destination's nearest embassy or consulate before booking a cheap flight from London to Castries.

Flying from London

London Heathrow Airport (LHR)

If you're searching for a direct flight from London to Castries, you can board one at London Heathrow Airport (LHR). Fly from LHR to Hewanorra Airport (UVF) without any stops.
Virgin Atlantic is a popular carrier that offers direct flights from London to Castries taking off from LHR.
Consider adding a stopover to potentially find a cheaper flight from London to Castries. Just uncheck 'Direct flights only' when browsing departures from London Heathrow Airport. Take a pause at one of these airports:
- Grantley Adams International Airport (BGI)
- John F. Kennedy International Airport (JFK)
- Hartsfield-Jackson Atlanta International Airport (ATL)
LHR is around 31 kilometres from central London. If you're ride-sharing, catching a cab or driving from the centre, it'll take 57 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the trip time to be around 1 hour and 1 minute.
Have an early flight from London to Castries? Avoid the hassle of rushing to the airport (and get some extra shut-eye) by choosing one of these hotels near London Heathrow Airport:

London Gatwick Airport (LGW)

Another option is to book a direct flight from London to Castries out of London Gatwick Airport (LGW). Connections from LGW will get you to Hewanorra Airport (UVF).
Board your direct flight from London to Castries with British Airways. This is one of the top carriers flying this route out of LGW.
Break up your flight from London to Castries with a stop so you can freshen up or cross a new place off your list. Some great stopovers between London Heathrow Airport and Castries are:
- Grantley Adams International Airport (BGI)
- John F. Kennedy International Airport (JFK)
- Hartsfield-Jackson Atlanta International Airport (ATL)
You can arrive at LGW from central London in about 1 hour and 19 minutes by car, depending on traffic conditions. The journey by public transport takes roughly 1 hour and 26 minutes to travel the 80 kilometres or so.
You're off on vacation, so why not spend an extra night away? Consider kicking back in one of these accommodation options near London Gatwick Airport the day before your flight from London to Castries:

Arriving in Castries

Hewanorra Airport (UVF)

Hewanorra Airport (UVF) to central Castries is roughly 56 kilometres. It takes about 1 hour and 9 minutes to reach the centre driving.
Book a hotel close to UVF if you have a late flight from London to Castries. Select one of these options and avoid the hassle of a long transfer:

George F. L. Charles Airport (SLU)

George F. L. Charles Airport (SLU) is around 3 kilometres from the centre of Castries. After your flight from London to Castries, allow for a drive time of approximately 6 minutes to get to the heart of the city.
If you're travelling on public transport, it'll take around 40 minutes.
You'll find some comfortable stays ready to welcome you near SLU. Tuck yourself in after your flight from London to Castries at one of these perfectly located options:

How to find the cheapest flights from London to Castries

Right now, C$601 is the best price we've seen for a one-way ticket from London to Castries. The cheapest price for a return flight is C$945. Keep in mind fares may change due to availability at the time of booking.
Score cheap flights from London to Castries by booking 9 months ahead. According to our research, that's the sweet spot for bagging a bargain.
Plan your trip for May. That's the cheapest month for tickets from London to Castries. If your travel dates are flexible, use the 'Whole month' tool to find the cheapest price across each month.
Locking in a cheap ticket from London to Castries is easy with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as there's a better deal.
Use filters to tailor your flights from London to Castries. Simply enter your ideal departure and arrival times, airlines and number of stops. Alternatively, sort your results by 'Cheapest' to see the best deals.

Best time to go to Castries

May is the quietest month for flights from London to Castries, while July is the busiest. Choose the ideal time to visit Castries based on whether you prefer a lively atmosphere or a more laid-back vibe.
Lock in your flight from London to Castries for September if you'd like to visit the city during its warmest month. You can expect temperatures in Castries to range from 26ºC to 30ºC.
If you want to travel in cooler conditions, lock in a cheap ticket from London to Castries in February when temperatures average between 24ºC and 28ºC.

More about Castries

When it comes to searching for somewhere to lay your head, you'll find the top stays in Castries right here. Explore these options after you've booked your flight from London to Castries:
All great vacations should include a little sightseeing. Derek Walcott Square, Morne Fortune and Immaculate Conception Church are must-do's during your Castries adventure.

Complete your Castries trip with a car rental

Finding you a cheap flight from London to Castries isn't our only cool trick. Check out our car rentals in Castries and explore the city on your own terms. We find deals from trusted car rental providers and put them all in one place. You can instantly compare offers and then book with no fees.