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Cheap flights from London to Castries from £356

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — UVF
10 May — 17 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Castries Hewanorra are usually found in September or June, booked 60 days in advance, depart on a Tuesday or Sunday and return on a Wednesday

Cheap 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 10 April 2026.

Thu 11/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Fri 19/620:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 6/4£619
Fri 15/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Sun 7/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 10/4£622
Tue 10/1112:20
LHR
-
UVF
1 stop31h 49m
JetBlue
Thu 26/1117:01
UVF
-
LHR
1 stop23h 44m
JetBlue
Deal found 9/4£625
Tue 19/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Sun 7/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 7/4£627
Fri 26/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Fri 26/620:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 9/4£628
Sat 9/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Fri 22/520:55
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 6/4£629
Fri 5/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sat 13/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 8/4£640
Fri 15/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Sun 17/520:35
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 6/4£643
Sun 10/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Sun 17/520:35
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 5/4£644
Thu 19/1112:30
LGW
-
UVF
Nonstop9h 05m
British Airways
Fri 27/1120:05
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 8/4£646
Thu 29/1012:30
LGW
-
UVF
Nonstop9h 05m
British Airways
Sat 14/1119:20
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 7/4£646
Fri 15/511:15
LGW
-
UVF
Nonstop8h 55m
British Airways
Sat 23/520:35
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 9/4£648

Find 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 10 April 2026.

Round-trip from

£616

One-way from

£356

Popular in

December

Cheapest in

September

Average price

£721
British Airways
  • British Airways
  • 18/6-4/7
  • Nonstop
  • 17h 10m total
  • London to Castries
Search Deals
21/4
  • 21/4
  • 3 total stops
  • 59h 06m total
  • London to Castries
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 10 April 2026.
Use the filters below to find and compare flights from London to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Fri 8/5

11:15-15:10

Nonstop8h 55m

Castries Hewanorra

Mon 18/5

22:10-11:25

Nonstop8h 15m

£695

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 20/4

15:15-14:02

1 stop27h 47m

Castries Hewanorra

Fri 24/4

15:22-06:25

1 stop34h 03m

£737

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sat 9/5

11:15-15:10

Nonstop8h 55m

Castries Hewanorra

Thu 28/5

22:10-11:25

Nonstop8h 15m

£769

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 26/4

17:45-14:02

2 stops25h 17m

Castries Hewanorra

Sun 3/5

15:22-11:20

1 stop14h 58m

£892

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 11/5

09:40-14:05

2 stops33h 25m

Castries Hewanorra

Thu 21/5

15:25-13:15

1 stop16h 50m

£894

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 11/6

07:30-12:44

2 stops34h 14m

Castries Hewanorra

Fri 19/6

16:33-09:55

2 stops36h 22m

£918

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Wed 2/9

10:25-14:08

2 stops32h 43m

Castries Hewanorra

Fri 11/9

15:38-16:00

2 stops19h 22m

£1,007

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 25/5

11:20-15:35

2 stops33h 15m

Castries Hewanorra

Thu 4/6

14:10-21:05

2 stops25h 55m

£1,043

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Fri 8/5

17:35-14:28

2 stops49h 53m

Castries Hewanorra

Mon 18/5

15:48-22:25

2 stops25h 37m

£1,054

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 25/5

09:40-14:05

2 stops33h 25m

Castries Hewanorra

Thu 4/6

15:25-13:15

1 stop16h 50m

£1,072

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 56 resultsSorted by cheapest first
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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 9 April 2026.

The best time to book flights from London to Castries is 60 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, May is the cheapest month in which you can book a flight from London to Castries (average of £372). Flying from London to Castries in December is currently the most expensive (average of £699). 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 10 April 2026.

When flying from London to Castries, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from London to Castries?

How often are flights from London to Castries delayed?

About 22% of weekly flights between London and Castries have experienced delays in the past year, with the average delay time being 114 minutes.

What is the most punctual flight time for London to Castries flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Castries flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 21% of flights being delayed.

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 10 April 2026.
Read through reviews of airlines operating flights from London to Castries, such as Finnair,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Finnair
7.7
Good
1,381 reviews
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
JetBlue
7.2
Good
2,926 reviews
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
American Airlines
7.1
Good
11,564 reviews
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Icelandair
7.0
Good
632 reviews
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
British Airways
6.7
Okay
7,869 reviews
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.

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 £695, British Airways can have you in Castries from London in 8h 55m. 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?

    British Airways, at £493, was found to be the cheapest airline from London to Castries.Alternate airlines flying return to your destination include JetBlue and Air Canada. British Airways is priced at 30% lower than the current average price of a flight leaving 3 months from now.

  • 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, May is the cheapest month in which you can book a flight from London to Castries (average of £372). Flying from London to Castries in December is currently the most expensive (average of £699). 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 10 April 2026.
British Airways flights from London to Castries Hewanorra
TUI Airways 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 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£493Average£791FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapest£534Average£836FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£636Average£745FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£693Average£910FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£709Average£963FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£1,160Average£1,504FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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