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Cheap flights from Saint Lucia to London Heathrow Airport from £402

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
UVF — LHR
8 Jul — 15 Jul1
1 adult

Cheap 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 3 July 2025.

Round-trip from

£682

One-way from

£402
Air Canada
  • Air Canada
  • 19/9-29/9
  • 2 total stops
  • 69h 10m total
  • Saint Lucia to London
17/8
  • 17/8
  • 2 total stops
  • 38h 45m total
  • Saint Lucia to London

Find flight deals from Saint Lucia to Heathrow

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 3 July 2025.

Fri 19/915:10UVF - LHR
1 stop34h 25mAir Canada
Mon 29/908:30LHR - UVF
1 stop34h 45mAir Canada
Deal found 1/7£682
Mon 25/817:31UVF - LHR
2 stops31h 59mIcelandair
Mon 29/908:25LHR - UVF
2 stops34h 20mIcelandair
Deal found 3/7£852
Fri 19/913:55SLU - LHR
1 stop12h 55mMultiple Airlines
Mon 29/908:05LHR - SLU
1 stop14h 25mMultiple Airlines
Deal found 1/7£854
Fri 5/915:10UVF - LHR
1 stop34h 25mMultiple Airlines
Sat 27/915:50LHR - UVF
2 stops32h 35mMultiple Airlines
Deal found 1/7£920
Sat 13/1215:05UVF - LHR
1 stop17h 00mAmerican Airlines
Wed 31/1219:00LHR - UVF
2 stops23h 45mAmerican Airlines
Deal found 2/7£950
Sun 17/814:55UVF - LHR
1 stop16h 35mFinnair
Sun 24/809:45LHR - UVF
2 stops33h 50mFinnair
Deal found 3/7£1,388
Sun 13/715:40UVF - LHR
1 stop16h 50mDelta
Sun 24/817:25LHR - UVF
1 stop25h 50mDelta
Deal found 2/7£1,410

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 3 July 2025.
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

Fri 19/9

15:10-06:35

1 stop34h 25m

London Heathrow

Mon 29/9

08:30-14:15

1 stop34h 45m

£682

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Mon 25/8

17:31-06:30

2 stops31h 59m

London Heathrow

Mon 29/9

08:25-13:45

2 stops34h 20m

£852

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Fri 19/9

13:55-07:50

1 stop12h 55m

London Heathrow

Mon 29/9

08:05-17:30

1 stop14h 25m

£854

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 5/9

15:10-06:35

1 stop34h 25m

London Heathrow

Sat 27/9

15:50-19:25

2 stops32h 35m

£920

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sat 13/12

15:05-12:05

1 stop17h 00m

London Heathrow

Wed 31/12

19:00-14:45

2 stops23h 45m

£950

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 17/8

14:55-12:30

1 stop16h 35m

London Heathrow

Sun 24/8

09:45-14:35

2 stops33h 50m

£1,388

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 13/7

15:40-13:30

1 stop16h 50m

London Heathrow

Sun 24/8

17:25-14:15

1 stop25h 50m

£1,410

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 17/8

14:35-10:20

2 stops38h 45m

£402

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sat 30/8

13:36-09:30

1 stop14h 54m

£478

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 5/9

15:10-11:50

1 stop15h 40m

£523

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 14 results
1
2

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

What is the cheapest month to book a flight from Saint Lucia to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Saint Lucia to London Heathrow Airport (average of £112). Flying from Saint Lucia to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 3 July 2025.
See what other customers who have flown with Delta, Finnair, andUnited Airlines from Saint Lucia to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.
  • What are the cheapest airlines to fly from Saint Lucia to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £478 on JetBlue. Other airlines that offer cheap prices include Air Canada from £523 and United Airlines from £776 one-way.

  • 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.

  • What is the cheapest month to book a flight from Saint Lucia to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Saint Lucia to London Heathrow Airport (average of £112). Flying from Saint Lucia to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Saint Lucia?

Book flights to Saint Lucia if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Swindon
Maidstone

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Saint Lucia to Heathrow

Discover the top 2 airlines that operate flights from Saint Lucia to Heathrow. 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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£562Average£685FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£669Average£737FlexibilityNo cancel feeOn-time70%
Search British Airways 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 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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