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Cheap flights from Saint Lucia to London Heathrow Airport from £412

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
UVF — LHR
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Saint Lucia to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Saint Lucia to Heathrow
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 29 January 2026.

Thu 26/217:23
UVF
-
LHR
2 stops34h 42m
Multiple Airlines
Thu 5/307:50
LHR
-
UVF
2 stops36h 08m
Multiple Airlines
Deal found 27/1£789
Sun 12/416:05
UVF
-
LHR
2 stops33h 25m
Air Canada
Thu 30/412:40
LHR
-
UVF
2 stops30h 25m
Air Canada
Deal found 27/1£802
Mon 23/217:15
UVF
-
LHR
1 stop14h 05m
Air Canada
Wed 11/318:00
LHR
-
UVF
1 stop25h 25m
Air Canada
Deal found 27/1£863
Thu 26/215:45
SLU
-
LHR
1 stop14h 10m
Multiple Airlines
Thu 5/313:20
LHR
-
SLU
1 stop26h 45m
Multiple Airlines
Deal found 27/1£950
Tue 3/219:10
SLU
-
LHR
2 stops31h 10m
Multiple Airlines
Tue 10/208:00
LHR
-
SLU
2 stops29h 30m
Multiple Airlines
Deal found 27/1£1,032
Sat 14/209:10
SLU
-
LHR
1 stop20h 25m
Multiple Airlines
Fri 13/309:40
LHR
-
SLU
1 stop13h 20m
Multiple Airlines
Deal found 28/1£1,052
Mon 23/219:10
SLU
-
LHR
3 stops32h 40m
Multiple Airlines
Wed 11/313:30
LHR
-
SLU
3 stops27h 40m
Multiple Airlines
Deal found 29/1£1,122
Sun 12/409:10
SLU
-
LHR
1 stop19h 10m
Multiple Airlines
Thu 30/409:20
LHR
-
SLU
1 stop14h 40m
Multiple Airlines
Deal found 27/1£1,546

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 29 January 2026.

Round-trip from

£789

One-way from

£412
26/2-5/3
  • 26/2-5/3
  • 4 total stops
  • 70h 50m total
  • Saint Lucia to London
Search Deals
5/2
  • 5/2
  • 2 total stops
  • 34h 44m total
  • Saint Lucia to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Saint Lucia to Heathrow 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 29 January 2026.
Use the filters below to find and compare flights from Saint Lucia to London Heathrow Airport that are best for you.

Fly from

Saint Lucia

Fly to

Heathrow

Route

Depart

Return

Price

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 26/2

17:23-08:05

2 stops34h 42m

London Heathrow

Thu 5/3

07:50-15:58

2 stops36h 08m

£789

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 12/4

16:05-06:30

2 stops33h 25m

London Heathrow

Thu 30/4

12:40-14:05

2 stops30h 25m

£802

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Mon 23/2

17:15-20:35

2 stops23h 20m

London Heathrow

Wed 11/3

18:00-15:25

1 stop25h 25m

£866

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 26/2

17:15-11:20

1 stop14h 05m

London Heathrow

Thu 5/3

11:10-16:25

1 stop33h 15m

£868

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Thu 26/2

15:45-09:55

1 stop14h 10m

London Heathrow

Thu 5/3

13:20-12:05

1 stop26h 45m

£950

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sat 14/2

09:10-09:35

1 stop20h 25m

London Heathrow

Fri 13/3

09:40-19:00

1 stop13h 20m

£1,052

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 17/7

15:05-06:35

1 stop34h 30m

London Heathrow

Fri 31/7

14:05-12:10

2 stops27h 05m

£1,090

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Mon 23/2

19:10-06:20

2 stops31h 10m

London Heathrow

Wed 11/3

13:30-13:10

3 stops27h 40m

£1,122

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sat 4/4

18:52-11:55

2 stops60h 03m

London Heathrow

Thu 30/4

21:25-11:21

2 stops42h 56m

£1,209

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 12/4

09:10-09:20

1 stop19h 10m

London Heathrow

Thu 30/4

09:20-19:00

1 stop14h 40m

£1,546

Flights are sorted by cheapest return flights first.

Deals found on 26/1

Showing 1-10 of 26 results
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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.
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 Saint Lucia to London Heathrow Airport
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Saint Lucia to London Heathrow Airport?

    Departing from Saint Lucia to London Heathrow Airport will take you 33h 25m. Saint Lucia and London Heathrow Airport are separated by a distance of 4217 mi.

  • Can I find deals for flights from Saint Lucia to Heathrow that include hotel bookings?

    Yes. In addition to deals on Saint Lucia to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Saint Lucia to Heathrow?

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

  • Can I find deals for business class flights from Saint Lucia to Heathrow?

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

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Luton
Croydon
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Watford
Colchester
Guildford
Swindon
Chelmsford
Bedford
Crawley
Kingston upon Thames
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Saint Lucia to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Oranjestad to Heathrow flights

Fly with Cheapflights

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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.

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