Cheap flights from Saint Lucia to London Heathrow Airport from £340
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Saint Lucia to Heathrow
Cheapest flights from Saint Lucia to HeathrowExplore the most affordable flight options available from Saint Lucia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 October 2026.
Explore the most affordable flight options available from Saint Lucia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 October 2026.
Best flights from Saint Lucia to HeathrowDiscover carefully curated flight deals from Saint Lucia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.
Discover carefully curated flight deals from Saint Lucia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.
Last-minute flights from Saint Lucia to HeathrowDiscover last-minute flight deals from Saint Lucia to Heathrow. Data last updated 8 October 2026 and is based on user searches.
Discover last-minute flight deals from Saint Lucia to Heathrow. Data last updated 8 October 2026 and is based on user searches.
One-way flights from Saint Lucia to HeathrowSearch for one-way flight options from Saint Lucia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.
Search for one-way flight options from Saint Lucia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.
Find flight deals from Saint Lucia to Heathrow
Keep the following information in mind while searching for Saint Lucia to Heathrow flight deals. Data was last updated 8 October 2026.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Saint Lucia to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Fri 11/12
16:55-21:40
1 stop24h 45m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Mon 15/2
16:51-20:45
1 stop23h 54m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Fri 11/12
17:35-06:30
2 stops32h 55m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Sun 14/2
17:35-07:10
2 stops33h 35m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Wed 3/3
17:45-07:10
2 stops33h 25m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Sun 1/11
15:55-21:00
2 stops25h 05m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Mon 21/12
17:06-09:45
2 stops36h 39m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Sun 28/2
15:40-13:25
3 stops17h 45m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Fri 20/11
17:22-09:45
2 stops36h 23m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
CastriesLondon
UVF Castries Hewanorra - LHR London Heathrow
UVFLHR
Castries Hewanorra
Sun 28/2
15:55-12:50
2 stops40h 55m
London Heathrow
Wed 31/12
00:00-19:00
Nonstop0h 00m
Best time to book a flight from Saint Lucia to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Saint Lucia with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Saint Lucia to London Heathrow Airport
Related info for your journey
Find useful and relevant information for your journey from Saint Lucia to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near London Heathrow Airport?
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Alternative routes for Saint Lucia to Heathrow
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Complete your trip
Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to England
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Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 October 2026.
Saint Lucia and Heathrow flights
Browse other Saint Lucia and Heathrow flight options. Last updated on 8 October 2026.
Popular flight searches
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How does Cheapflights help users find flights from Saint Lucia to Heathrow?
Cheapflights makes it easy to find Saint Lucia to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Saint Lucia to Heathrow?
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 Heathrow from Saint Lucia.
Can Cheapflights find flights from Saint Lucia to Heathrow with no change fees?
Need flexible booking options for your flight to Heathrow from Saint Lucia? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Saint Lucia to Heathrow become cheaper?
Yes! Start tracking prices for Saint Lucia to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.