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Cheap flights from Saint Lucia to London Heathrow Airport from £406

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 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
UVF — LHR
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

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 28 October 2025.

Round-trip from

£769

One-way from

£406
JetBlue
  • JetBlue
  • 13/11-27/11
  • 2 total stops
  • 55h 09m total
  • Saint Lucia to London
Search Deals
WestJet
  • WestJet
  • 27/1
  • 2 total stops
  • 41h 10m total
  • Saint Lucia to London
Search Deals

Find 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 28 October 2025.

Thu 13/1116:57UVF - LHR
1 stop23h 48mJetBlue
Thu 27/1112:20LHR - UVF
1 stop31h 21mJetBlue
Deal found 26/10£769
Sun 30/1117:15UVF - LHR
1 stop33h 15mAir Canada
Mon 12/113:45LHR - UVF
2 stops54h 40mAir Canada
Deal found 26/10£810
Tue 18/1112:35SLU - LHR
1 stop12h 50mMultiple Airlines
Fri 28/1108:00LHR - SLU
1 stop15h 00mMultiple Airlines
Deal found 27/10£896
Mon 8/1216:57UVF - LHR
1 stop24h 43mJetBlue
Wed 31/1207:25LHR - UVF
1 stop36h 22mJetBlue
Deal found 26/10£904
Thu 27/1118:20SLU - LHR
2 stops21h 50mMultiple Airlines
Sun 26/411:20LHR - SLU
3 stops33h 15mMultiple Airlines
Deal found 28/10£923
Thu 27/1117:01UVF - LHR
1 stop23h 44mJetBlue
Sun 26/411:55LHR - UVF
1 stop31h 38mJetBlue
Deal found 28/10£938
Sun 30/1117:15UVF - LHR
3 stops39h 35mMultiple Airlines
Mon 12/116:35LHR - UVF
2 stops26h 15mMultiple Airlines
Deal found 26/10£992
Tue 16/1207:30SLU - LHR
1 stop22h 05mMultiple Airlines
Sat 27/1209:40LHR - SLU
1 stop29h 45mMultiple Airlines
Deal found 27/10£1,025
Thu 11/1215:45SLU - LHR
1 stop13h 50mMultiple Airlines
Sun 4/109:40LHR - SLU
1 stop13h 20mMultiple Airlines
Deal found 26/10£1,059
Sat 29/1119:00UVF - LHR
1 stop21h 45mJetBlue
Thu 15/112:20LHR - UVF
1 stop31h 23mJetBlue
Deal found 26/10£1,069
Tue 18/1116:57UVF - LHR
1 stop24h 43mJetBlue
Fri 28/1108:05LHR - UVF
1 stop35h 02mJetBlue
Deal found 27/10£1,085

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 28 October 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

Sun 30/11

17:15-16:20

2 stops43h 05m

London Heathrow

Mon 12/1

12:05-16:25

2 stops56h 20m

£824

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Mon 16/3

16:15-11:20

1 stop15h 05m

London Heathrow

Sun 22/3

13:25-15:25

2 stops30h 00m

£884

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Tue 18/11

12:35-05:25

1 stop12h 50m

London Heathrow

Fri 28/11

08:00-19:00

1 stop15h 00m

£896

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Mon 8/12

16:57-21:40

1 stop24h 43m

London Heathrow

Wed 31/12

07:25-15:47

1 stop36h 22m

£904

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Thu 27/11

18:20-20:10

2 stops21h 50m

London Heathrow

Sun 26/4

11:20-15:35

3 stops33h 15m

£923

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 26/3

16:10-12:00

1 stop15h 50m

London Heathrow

Mon 30/3

18:05-13:30

2 stops24h 25m

£977

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Tue 16/12

07:30-09:35

1 stop22h 05m

London Heathrow

Sat 27/12

09:40-11:25

1 stop29h 45m

£1,025

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Thu 11/12

15:45-09:35

1 stop13h 50m

London Heathrow

Sun 4/1

09:40-19:00

1 stop13h 20m

£1,059

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Tue 27/1

15:40-12:50

2 stops41h 10m

£406

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Wed 10/12

10:25-10:50

3 stops44h 25m

£421

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 22 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

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

Currently, December is the cheapest month in which you can book a flight from Saint Lucia to London Heathrow Airport (average of £576). Flying from Saint Lucia to London Heathrow Airport in October is currently the most expensive (average of £911). 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 28 October 2025.
See what other customers who have flown with Virgin Atlantic 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.
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Crew

8.1

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
670 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Crew

8.1

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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 43h 05m. Saint Lucia and London Heathrow Airport are separated by a distance of 4217 mi.

  • 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 £406 on WestJet. Other airlines that offer cheap prices include Air Canada from £530 and JetBlue from £567 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, December is the cheapest month in which you can book a flight from Saint Lucia to London Heathrow Airport (average of £576). Flying from Saint Lucia to London Heathrow Airport in October is currently the most expensive (average of £911). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Chichester
Swindon
Crawley
Romford
Brentford
Ipswich

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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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Top airline flying from Saint Lucia to Heathrow

Discover the top airline 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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£575Average£699FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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