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Cheap flights from London to Castries from £337

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — UVF
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London to Castries Hewanorra are usually found in March or September, booked 6 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from London to Castries

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Castries (UVF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 October 2025.

Round-trip from

£565

One-way from

£379

Popular in

December

Cheapest in

March

Average price

£605
Icelandair
  • Icelandair
  • 21/1-28/1
  • 2 total stops
  • 55h 55m total
  • London to Castries
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10/11
  • 10/11
  • 2 total stops
  • 28h 50m total
  • London to Castries
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£40 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from London to Castries

Enter your travel dates to find the best prices.

Cheapest flights from London to Castries
Explore the most affordable flight options available from London to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Tue 11/1110:00LGW - UVF
Nonstop9h 05mBritish Airways
Tue 18/1120:50UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 12/10£567
Wed 12/1110:05LGW - UVF
Nonstop9h 05mBritish Airways
Wed 19/1120:35UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 13/10£596
Tue 11/1110:00LGW - UVF
Nonstop9h 05mBritish Airways
Tue 25/1120:50UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 13/10£601
Sat 15/1108:05LHR - UVF
1 stop34h 52mIcelandair
Thu 27/1117:01UVF - LHR
1 stop23h 44mIcelandair
Deal found 14/10£604
Thu 13/1112:20LHR - UVF
1 stop30h 37mIcelandair
Fri 12/1216:57UVF - LHR
1 stop25h 03mIcelandair
Deal found 13/10£606
Mon 10/1109:20LHR - UVF
2 stops33h 37mIcelandair
Mon 24/1117:01UVF - LHR
1 stop24h 39mIcelandair
Deal found 12/10£613
Fri 7/1110:00LGW - UVF
Nonstop9h 05mBritish Airways
Sun 16/1120:35UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 14/10£618
Mon 17/1108:05LHR - UVF
1 stop34h 52mJetBlue
Wed 26/1117:01UVF - LHR
1 stop24h 39mJetBlue
Deal found 14/10£618
Fri 7/1109:20LHR - UVF
1 stop33h 02mIcelandair
Fri 14/1116:57UVF - LHR
1 stop25h 03mIcelandair
Deal found 14/10£619
Fri 21/1112:20LHR - UVF
1 stop30h 37mIcelandair
Fri 5/1216:57UVF - LHR
1 stop25h 03mIcelandair
Deal found 14/10£623
Mon 17/1110:00LGW - UVF
Nonstop9h 05mBritish Airways
Wed 26/1120:35UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 12/10£634
Wed 5/1110:05LGW - UVF
Nonstop9h 05mBritish Airways
Sun 9/1120:35UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 12/10£668

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 October 2025.
Use the filters below to find and compare flights from London to Castries that are best for you.

Fly from

London

Fly to

Castries

Route

Depart

Return

Price

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 3/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Fri 13/3

20:50-09:05

Nonstop8h 15m

£573

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 11/11

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Tue 18/11

20:50-09:05

Nonstop8h 15m

£576

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Wed 4/3

10:05-15:10

Nonstop9h 05m

Castries Hewanorra

Thu 12/3

22:05-10:20

Nonstop8h 15m

£582

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 3/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Thu 12/3

22:05-10:20

Nonstop8h 15m

£582

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Wed 12/11

10:05-15:10

Nonstop9h 05m

Castries Hewanorra

Wed 19/11

20:35-08:50

Nonstop8h 15m

£596

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 17/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Wed 18/3

20:35-08:50

Nonstop8h 15m

£599

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Mon 2/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Thu 12/3

22:05-10:20

Nonstop8h 15m

£600

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 24/2

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Wed 4/3

20:35-08:50

Nonstop8h 15m

£640

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 24/2

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Thu 5/3

22:05-10:20

Nonstop8h 15m

£640

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sun 8/2

10:05-15:10

Nonstop9h 05m

Castries Hewanorra

Sun 1/3

20:35-08:50

Nonstop8h 15m

£650

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 60 results
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Best time to book a flight from London to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Castries

How far ahead should I book a flight from London to Castries?

Use this chart to determine the optimal time to book a return flight from London to Castries. Price data was last updated on 10 October 2025.

The best time to book flights from London to Castries is 6 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London to Castries?

Currently, March is the cheapest month in which you can book a flight from London to Castries (average of £286). Flying from London to Castries in July is currently the most expensive (average of £560). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to UVF?

Find hourly flight availability from London to Castries. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 October 2025.

One of the essential ways to save on airfare from London to Castries is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 29% on airfare.

Reviews of airlines servicing Castries

Get insights into the airlines that provide service to Castries. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Castries. Reviews last updated 15 October 2025.
Read through reviews of airlines operating flights from London to Castries, such as Finnair, Virgin Atlantic, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,332 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Virgin Atlantic
7.4
Good
667 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Icelandair
7.0
Good
556 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,457 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Related info for your journey

Find useful and relevant information for your journey from London to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Castries from London?

    Most people fly into Castries Hewanorra (UVF) if they book a flight to Castries from London. On average, Hewanorra has 0 inbound flights from London per day from 6 airlines. Castries Hewanorra is conveniently located just 19.3 mi from Castries’s city center.

  • How long is the flight from London to Castries?

    For as low as £573, British Airways can have you in Castries from London in 9h 05m. The distance between London and Castries is about 4223 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London to Castries round-trip?

    TUI Airways, at £285, was found to be the cheapest airline from London to Castries.Alternate airlines flying return to your destination include Virgin Atlantic and British Airways. TUI Airways is priced at 53% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London to Castries one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at £337. British Airways flights start at £398 while deals on Aer Lingus start at £706 one-way.

  • What are the most popular routes from London to Castries?

    Most travelers choose London Heathrow - Castries Hewanorra, London Gatwick - Castries Hewanorra or London City - Castries Hewanorra when deciding on the best route from London to Castries.

  • Can I find deals for flights from London to Castries that include hotel bookings?

    Yes. In addition to deals on London to Castries flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Castries?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Castries.

  • Can I find deals for business class flights from London to Castries?

    Yes. Cheapflights offers flight deals from London to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Castries?

    Currently, March is the cheapest month in which you can book a flight from London to Castries (average of £286). Flying from London to Castries in July is currently the most expensive (average of £560). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Fly from London to Castries on these airlines

Choose from the following airlines for your flight from London to Castries. Flights are based on user searches made on Cheapflights and were last updated on 15 October 2025.
British Airways flights from London to Castries Hewanorra
TUI Airways flights from London to Castries Hewanorra
Virgin Atlantic flights from London to Castries Hewanorra

Top 6 airlines flying from London to Castries

Discover the top 6 airlines that operate flights from London to Castries. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
TUI AirwaysCheapest£285Average£395FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
Virgin AtlanticCheapest£433Average£604FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£463Average£619FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£523Average£672FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£592Average£813FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£688Average£1,332FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Castries?

Deals for London to Castries flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Castries?

Cheapflights simply makes it quick and affordable to book flights from London to Castries by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Castries with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Castries flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Castries become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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