£971+ Flights from Saint Lucia to London Heathrow Airport - Compare & Save Big | Cheapflights

Cheap flight deals from Saint Lucia to Heathrow

Round-trip from	£737
One-way from	£457

Air Canada

Air Canada
10/6-3/7
2 total stops
61h 50m total
Saint Lucia to London

10/8

10/8
3 total stops
32h 50m 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 30 April 2025.

Tue 10/615:10UVF - LHR

1 stop34h 25mAir Canada

Thu 3/715:50LHR - UVF

1 stop27h 25mAir Canada

Deal found 29/4£737

Thu 8/515:09UVF - LHR

1 stop24h 36mIcelandair

Sat 31/508:25LHR - UVF

2 stops58h 24mIcelandair

Deal found 29/4£819

Thu 10/714:35UVF - LHR

1 stop15h 05mMultiple Airlines

Wed 13/817:50LHR - UVF

1 stop24h 55mMultiple Airlines

Deal found 29/4£867

Mon 21/712:35SLU - LHR

1 stop12h 45mMultiple Airlines

Wed 22/1011:25LHR - SLU

1 stop12h 35mMultiple Airlines

Deal found 29/4£890

Sat 27/915:34UVF - LHR

2 stops23h 11mAmerican Airlines

Wed 8/1020:10LHR - UVF

2 stops22h 10mAmerican Airlines

Deal found 29/4£968

Sun 15/614:35UVF - LHR

2 stops40h 30mWestJet

Fri 4/714:10LHR - UVF

2 stops52h 35mWestJet

Deal found 29/4£1,104

Fri 1/815:40UVF - LHR

2 stops23h 20mDelta

Sat 23/818:15LHR - UVF

2 stops25h 00mDelta

Deal found 29/4£1,425

Best flights from Saint Lucia to Heathrow
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 30 April 2025.

Tue 10/615:10UVF - LHR

1 stop34h 25mAir Canada

Thu 3/715:50LHR - UVF

1 stop27h 25mAir Canada

Deal found 29/4£737

Thu 10/714:35UVF - LHR

1 stop15h 05mMultiple Airlines

Wed 13/817:50LHR - UVF

1 stop24h 55mMultiple Airlines

Deal found 29/4£867

Fri 20/617:40UVF - LHR

1 stop22h 05mIcelandair

Fri 4/711:55LHR - UVF

1 stop33h 14mIcelandair

Deal found 29/4£953

Sat 27/915:34UVF - LHR

2 stops23h 11mAmerican Airlines

Wed 8/1020:10LHR - UVF

2 stops22h 10mAmerican Airlines

Deal found 29/4£968

Sun 15/614:35UVF - LHR

2 stops40h 30mWestJet

Fri 4/714:10LHR - UVF

2 stops52h 35mWestJet

Deal found 29/4£1,104

Fri 1/815:40UVF - LHR

2 stops23h 20mDelta

Sat 23/818:15LHR - UVF

2 stops25h 00mDelta

Deal found 29/4£1,425

Mon 21/712:35SLU - LHR

1 stop12h 45mMultiple Airlines

Wed 22/1011:25LHR - SLU

1 stop12h 35mMultiple Airlines

Deal found 29/4£890

Last-minute flights from Saint Lucia to Heathrow
Discover last-minute flight deals from Saint Lucia to Heathrow. Data last updated 30 April 2025 and is based on user searches.

Thu 8/515:09UVF - LHR

1 stop24h 36mIcelandair

Sat 31/508:25LHR - UVF

2 stops58h 24mIcelandair

Deal found 29/4£819

Thu 8/515:20SLU - LHR

1 stop11h 30mMultiple Airlines

Sat 31/508:05LHR - SLU

1 stop32h 20mMultiple Airlines

Deal found 29/4£1,353

Fri 9/515:26UVF - LHR

1 stop17h 04mDelta

Sun 11/517:25LHR - UVF

1 stop25h 41mDelta

Deal found 28/4£1,434

Thu 15/518:20SLU - LHR

2 stops31h 05mMultiple Airlines

Sun 8/618:50LHR - SLU

2 stops26h 00mMultiple Airlines

Deal found 30/4£1,107

Thu 15/515:14UVF - LHR

1 stop36h 51mAmerican Airlines

Sun 8/619:40LHR - UVF

2 stops23h 05mAmerican Airlines

Deal found 30/4£1,419

One-way flights from Saint Lucia to Heathrow
Search for one-way flight options from Saint Lucia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 30 April 2025.

Sun 10/805:00SLU - LHR

3 stops32h 50mMultiple Airlines

Deal found 30/4£457

Thu 17/714:35UVF - LHR

2 stops26h 00mMultiple Airlines

Deal found 28/4£523

Fri 13/615:10UVF - LHR

2 stops34h 20mAir Canada

Deal found 29/4£533

Sun 10/814:35UVF - LHR

2 stops40h 30mWestJet

Deal found 30/4£612

Mon 5/515:19UVF - LHR

1 stop34h 56mVirgin Atlantic

Deal found 29/4£891

Mon 12/515:09UVF - LHR

1 stop24h 36mIcelandair

Deal found 29/4£930

Thu 25/915:34UVF - LHR

2 stops23h 11mAmerican Airlines

Deal found 29/4£1,072

Thu 25/915:38UVF - LHR

1 stop14h 32mDelta

Deal found 29/4£1,080

Sat 31/516:22UVF - LHR

1 stop14h 03mUnited Airlines

Deal found 30/4£1,706

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

Price

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Tue 10/6

15:10-06:35

1 stop34h 25m

London Heathrow

Thu 3/7

15:50-14:15

1 stop27h 25m

£737

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 10/7

14:35-10:40

1 stop15h 05m

London Heathrow

Wed 13/8

17:50-13:45

1 stop24h 55m

£867

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Mon 21/7

12:35-06:20

1 stop12h 45m

London Heathrow

Wed 22/10

11:25-19:00

1 stop12h 35m

£890

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 20/6

17:40-20:45

1 stop22h 05m

London Heathrow

Fri 4/7

11:55-16:09

1 stop33h 14m

£953

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sat 27/9

15:34-19:45

2 stops23h 11m

London Heathrow

Wed 8/10

20:10-13:20

2 stops22h 10m

£968

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 15/6

14:35-12:05

2 stops40h 30m

London Heathrow

Fri 4/7

14:10-13:45

2 stops52h 35m

£1,104

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 1/8

15:40-20:00

2 stops23h 20m

London Heathrow

Sat 23/8

18:15-14:15

2 stops25h 00m

£1,425

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sun 10/8

05:00-18:50

3 stops32h 50m

£457

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Thu 17/7

14:35-21:35

2 stops26h 00m

£523

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 13/6

15:10-06:30

2 stops34h 20m

£533

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 16 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.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Saint Lucia to London, such as Delta, United Airlines and Virgin Atlantic. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

8.0

Very Good

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

8.0

Very Good

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.

United Airlines

7.4

Good

8.0

Very Good

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.

Virgin Atlantic

7.4

Good

8.0

Very Good

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.

American Airlines

7.2

Good

8.0

Very Good

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.

7.2

Good

8.0

Very Good

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

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 £533 on Air Canada. Other airlines that offer cheap prices include WestJet from £612 and Virgin Atlantic from £891 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

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Luton

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Eastbourne

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Hayes

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Wembley

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Folkestone

Maidstone

Winchester

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Saint Lucia to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£457	Average£721	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£573	Average£699	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

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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.

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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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