Cheap flights from London Heathrow Airport to Castries from £402
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Heathrow to Castries
Cheapest flights from Heathrow to CastriesExplore the most affordable flight options available from Heathrow to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.
Explore the most affordable flight options available from Heathrow to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.
Best flights from Heathrow to CastriesDiscover carefully curated flight deals from Heathrow to Castries that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.
Discover carefully curated flight deals from Heathrow to Castries that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.
Last-minute flights from Heathrow to CastriesDiscover last-minute flight deals from Heathrow to Castries. Data last updated 5 October 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to Castries. Data last updated 5 October 2026 and is based on user searches.
One-way flights from Heathrow to CastriesSearch for one-way flight options from Heathrow to Castries. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.
Search for one-way flight options from Heathrow to Castries. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.
Find flight deals from Heathrow to Castries
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 5 October 2026.
Cheapflights Fare Finder
Use the filters below to find and compare flights from London Heathrow Airport to Castries that are best for you.
Fly from
Fly to
Route
Depart
Return
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Fri 27/11
08:05-16:11
1 stop36h 06m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Fri 27/11
12:15-14:50
2 stops30h 35m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Wed 13/1
12:15-14:55
2 stops30h 40m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Fri 15/1
08:50-11:31
2 stops30h 41m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Wed 20/1
12:10-15:34
2 stops31h 24m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Tue 8/12
15:00-16:40
1 stop29h 40m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Wed 2/12
11:10-16:40
1 stop33h 30m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Sun 6/12
13:00-16:40
2 stops31h 40m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Tue 30/3
11:05-15:40
1 stop33h 35m
Castries Hewanorra
Wed 31/12
00:00-05:00
Nonstop0h 00m
LondonCastries
LHR London Heathrow - UVF Castries Hewanorra
LHRUVF
London Heathrow
Sun 8/11
11:40-15:41
2 stops32h 01m
Castries Hewanorra
Mon 23/11
14:38-19:00
2 stops24h 22m
Best time to book a flight from Heathrow to Castries
Have a flexible travel schedule? Discover the best time to fly to Castries from Heathrow with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Castries
What is the cheapest month to book a flight from London Heathrow Airport to Castries?
Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Castries (average of £590). Flying from London Heathrow Airport to Castries in December is currently the most expensive (average of £1,230). 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.
How much does it cost for a return flight from London Heathrow Airport to Castries?
Airfare is below average for this route at the moment.
London Heathrow Airport to Castries flights typically cost between £701 and £736 in November.The cheapest return price found within the last 5 days was £632 on Air Canada (15 Nov–22 Nov).
What’s the top stopover airport for flights from London Heathrow Airport to Castries?
Atlanta (ATL) – chosen by Cheapflights users on 36% of one-stop itineraries from London Heathrow Airport to Castries on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Castries?
Miami (MIA) is the most affordable one-stop option, with an average return flight price of £579.
What’s the fastest stopover option from London Heathrow Airport to Castries?
Flights via Toronto (YYZ) have the shortest average one-way travel time for one-stop routes: 25h 25m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Castries?
Flights via Toronto (YYZ) offer the fastest connection on this route, with an average stopover time of 7h 33m.
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 5 October 2026.
Read reviews from past customers who have flown with American Airlines and British Airways from London Heathrow Airport to Castries. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Overall
Boarding
Crew
Entertainment
Food
Reviews
Ron,Aug 2026
LHR - LAX
Comfort
Overall
Boarding
Crew
Entertainment
Food
Reviews
Ron,Aug 2026
LHR - LAX
Comfort
Overall
Boarding
Crew
Entertainment
Food
Reviews
Ron,Aug 2026
LHR - LAX
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Heathrow to Castries
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Castries by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to Saint Lucia
Book a non-stop flight to one of these other cities located in Saint Lucia.
Search flights from Heathrow to Castries by cabin class
Find flights from Heathrow to Castries, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Heathrow and Castries flights
Browse other Heathrow and Castries flight options. Last updated on 5 October 2026.
Other flights from Heathrow
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 5 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
Top 2 airlines flying from Heathrow to Castries
Discover the top 2 airlines that operate flights from Heathrow 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 7,457,451 searches. Data last updated 5 October 2026.
Fly with Cheapflights
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How does Cheapflights help users find flights from Heathrow to Castries?
Cheapflights helps you search for flights from Heathrow to Castries via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Castries?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Castries from Heathrow.
Can Cheapflights find flights from Heathrow to Castries with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Castries, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Heathrow 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!