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.

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.

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).

What is the cheapest time of day to fly from LC to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Saint Lucia to London Heathrow Airport as you normally would.

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.

£309+ Cheap Flights from Saint Lucia to London Heathrow Airport

Cheap flight deals from Saint Lucia to Heathrow

Enter your travel dates to find the best prices.

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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 6 November 2026.

Thu 3/1216:55 -

1 stop24h 00m

Thu 10/1212:20 -

1 stop31h 11m

Deal found 5/11£735

Fri 4/1216:55 -

1 stop24h 45m

Tue 8/1212:20 -

1 stop31h 11m

Deal found 4/11£780

Thu 3/1217:35 -

2 stops47h 25m

Thu 10/1209:00 -

2 stops35h 40m

Deal found 5/11£830

Fri 4/1217:35 -

2 stops23h 25m

Tue 8/1213:00 -

2 stops31h 40m

Deal found 3/11£844

Sun 8/1117:35 -

1 stop34h 55m

Sun 15/1118:00 -

1 stop26h 40m

Deal found 1/11£853

Tue 17/1117:17 -

1 stop24h 23m

Thu 26/1112:20 -

1 stop31h 42m

Deal found 1/11£867

Fri 4/1216:55 -

1 stop24h 45m

Tue 8/1215:00 -

1 stop29h 40m

Deal found 3/11£920

Find flight deals from Saint Lucia to Heathrow

Round-trip from	£735
One-way from	£309

JetBlue
3/12-10/12
2 total stops
55h 11m total
Saint Lucia to London

Search Deals

JetBlue
13/2-31/12
1 total stop
25h 55m total
Saint Lucia to London

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Saint Lucia to London Heathrow Airport that are best for you.

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Cheapest return flight

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Tue 26/1

16:55-21:40

1 stop24h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£314

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 23/1

12:51-09:30

1 stop16h 39m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£318

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Tue 17/11

17:17-09:30

1 stop36h 13m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£405

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Thu 12/11

17:32-09:30

1 stop35h 58m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£405

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Mon 23/11

17:35-07:10

3 stops33h 35m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£497

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Fri 20/11

17:35-06:30

2 stops32h 55m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£507

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Sat 23/1

15:50-12:50

3 stops41h 00m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£508

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Thu 12/11

17:35-21:00

2 stops23h 25m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£511

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Tue 26/1

15:55-12:50

3 stops40h 55m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£517

Fastest return journey

CastriesLondon

UVF Castries Hewanorra - LHR London Heathrow

UVFLHR

Castries Hewanorra

Thu 19/11

15:55-11:20

1 stop15h 25m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£557

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 19 resultsSorted by cheapest first

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.

UVF-LHR

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

LC0-LHR

UVF-LHR

No data available for this route at this time. Please check back soon.

Related info for your journey

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.

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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?

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Cheap flights from Saint Lucia to London Heathrow Airport from £309

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Saint Lucia to Heathrow

Cheapest flights from Saint Lucia to HeathrowExplore 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 6 November 2026.

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 6 November 2026.

Best flights from Saint Lucia to HeathrowDiscover 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 6 November 2026.

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 6 November 2026.

Last-minute flights from Saint Lucia to HeathrowDiscover last-minute flight deals from Saint Lucia to Heathrow. Data last updated 6 November 2026 and is based on user searches.

Discover last-minute flight deals from Saint Lucia to Heathrow. Data last updated 6 November 2026 and is based on user searches.

One-way flights from Saint Lucia to HeathrowSearch for one-way flight options from Saint Lucia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

Search for one-way flight options from Saint Lucia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

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Best time to book a flight from Saint Lucia to Heathrow

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Cheapflights Insights

Related info for your journey

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

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

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

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

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Saint Lucia to Heathrow

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Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

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Search flights from Saint Lucia to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 6 November 2026.

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Can Cheapflights notify me if prices for flights from Saint Lucia to Heathrow become cheaper?

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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 6 November 2026.

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 6 November 2026.

Last-minute flights from Saint Lucia to Heathrow
Discover last-minute flight deals from Saint Lucia to Heathrow. Data last updated 6 November 2026 and is based on user searches.

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 6 November 2026.