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Cheap flights from Saint Lucia to London Heathrow Airport from £373

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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
UVF — LHR
26 Jul — 2 Aug1
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 26 June 2026.

Tue 1/915:15
UVF
-
LHR
1 stop15h 35m
Multiple Airlines
Fri 11/914:05
LHR
-
UVF
2 stops28h 26m
Multiple Airlines
Deal found 23/6£875
Tue 4/815:15
UVF
-
LHR
2 stops24h 45m
Air Canada
Sun 30/817:50
LHR
-
UVF
2 stops49h 30m
Air Canada
Deal found 25/6£1,010
Fri 25/916:25
UVF
-
LHR
2 stops38h 15m
Multiple Airlines
Sat 3/1006:30
LHR
-
UVF
2 stops37h 50m
Multiple Airlines
Deal found 25/6£1,068
Fri 17/716:40
UVF
-
LHR
2 stops32h 50m
JetBlue
Fri 31/708:40
LHR
-
UVF
2 stops33h 10m
JetBlue
Deal found 24/6£1,089
Thu 9/716:37
UVF
-
LHR
1 stop23h 08m
Multiple Airlines
Mon 20/721:25
LHR
-
UVF
2 stops44h 12m
Multiple Airlines
Deal found 25/6£1,124
Wed 4/1117:15
UVF
-
LHR
1 stop23h 30m
JetBlue
Tue 10/1109:20
LHR
-
UVF
2 stops34h 49m
JetBlue
Deal found 23/6£1,125
Thu 20/812:35
SLU
-
LHR
1 stop12h 15m
Multiple Airlines
Mon 31/811:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Deal found 22/6£1,208
Fri 25/912:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Sat 3/1011:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Deal found 21/6£1,260
Sat 8/812:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Sat 15/811:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Deal found 24/6£1,366
Fri 21/812:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Sun 20/911:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Deal found 22/6£1,406
Sun 30/815:15
SLU
-
LHR
2 stops18h 00m
Multiple Airlines
Mon 28/909:50
LHR
-
SLU
3 stops27h 20m
Multiple Airlines
Deal found 25/6£1,659
Tue 30/608:55
SLU
-
LHR
3 stops24h 20m
Multiple Airlines
Tue 7/709:35
LHR
-
SLU
1 stop14h 25m
Multiple Airlines
Deal found 23/6£1,692

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 26 June 2026.

Round-trip from

£875

One-way from

£373
1/9-11/9
  • 1/9-11/9
  • 3 total stops
  • 44h 01m total
  • Saint Lucia to London
Search Deals
14/7
  • 14/7
  • 2 total stops
  • 38h 08m 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 26 June 2026.
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

Price

Cheapest return flight

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Tue 4/8

15:15-21:00

2 stops24h 45m

London Heathrow

Sun 30/8

17:50-14:20

2 stops49h 30m

£1,010

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 25/9

16:25-16:40

2 stops43h 15m

London Heathrow

Sat 3/10

22:40-15:20

2 stops45h 40m

£1,078

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 17/7

16:40-06:30

2 stops32h 50m

London Heathrow

Fri 31/7

08:40-15:17

2 stops35h 37m

£1,096

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 9/7

13:57-06:30

2 stops35h 33m

London Heathrow

Mon 20/7

21:25-12:37

2 stops44h 12m

£1,184
Fastest return journey

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Thu 20/8

12:35-05:50

1 stop12h 15m

London Heathrow

Mon 31/8

11:10-19:00

1 stop12h 50m

£1,208

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 25/9

16:25-20:45

1 stop23h 20m

London Heathrow

Sat 3/10

08:40-15:20

2 stops35h 40m

£1,219

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Fri 25/9

12:35-06:15

1 stop12h 40m

London Heathrow

Sat 3/10

11:10-19:00

1 stop12h 50m

£1,260

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sat 8/8

12:35-06:15

1 stop12h 40m

London Heathrow

Sat 15/8

11:10-19:00

1 stop12h 50m

£1,366

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Fri 21/8

12:35-06:15

1 stop12h 40m

London Heathrow

Sun 20/9

11:10-19:00

1 stop12h 50m

£1,406

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 30/8

15:15-14:15

2 stops18h 00m

London Heathrow

Mon 28/9

09:50-08:10

3 stops27h 20m

£1,659

Flights are sorted by cheapest return flights first.

Deals found on 22/6

Showing 1-10 of 30 resultsSorted by cheapest first
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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 24h 45m. Saint Lucia and London Heathrow Airport are separated by a distance of 4217 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Swindon
Eastbourne
Watford
Poole
Southall
Romford
Ipswich

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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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