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

Departing from Saint Lucia to London Heathrow Airport will take you 13h 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.

What is the cheapest day to fly from Saint Lucia to London Heathrow Airport?

Travellers seeking maximum savings on their Saint Lucia to London Heathrow Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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?

Unlike in the morning, when flights are generally more expensive, you can save up to 13% on flights from Saint Lucia to London Heathrow Airport by exploring options for tickets at midday.

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.

£399+ Cheap Flights from Saint Lucia to London Heathrow Airport

Cheap flight deals from Saint Lucia to Heathrow

Round-trip from	£760
One-way from	£399

JetBlue
5/10-12/10
2 total stops
59h 18m total
Saint Lucia to London

Search Deals

21/9
2 total stops
41h 50m total
Saint Lucia to London

Search Deals

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 17 September 2025.

Sun 5/1015:32UVF - LHR

1 stop24h 13mJetBlue

Sun 12/1008:15LHR - UVF

1 stop35h 05mJetBlue

Deal found 16/9£760

Sat 4/1014:35UVF - LHR

1 stop13h 45mUnited Airlines

Fri 10/1016:40LHR - UVF

2 stops25h 51mUnited Airlines

Deal found 16/9£807

Fri 17/1015:10UVF - LHR

1 stop15h 40mAir Canada

Thu 30/1018:00LHR - UVF

1 stop25h 25mAir Canada

Deal found 15/9£814

Sat 8/1115:44UVF - LHR

1 stop35h 11mJetBlue

Thu 20/1112:20LHR - UVF

1 stop31h 21mJetBlue

Deal found 14/9£820

Sat 4/1014:06UVF - LHR

1 stop14h 24mJetBlue

Sun 12/1008:15LHR - UVF

1 stop35h 05mJetBlue

Deal found 16/9£829

Mon 6/1015:34UVF - LHR

1 stop24h 11mJetBlue

Sun 12/1008:15LHR - UVF

1 stop35h 05mJetBlue

Deal found 16/9£831

Fri 3/1015:10UVF - LHR

1 stop34h 25mAir Canada

Wed 31/1213:25LHR - UVF

2 stops55h 00mAir Canada

Deal found 16/9£834

Sat 8/1113:52UVF - LHR

1 stop36h 03mUnited Airlines

Thu 20/1112:05LHR - UVF

2 stops56h 20mUnited Airlines

Deal found 15/9£848

Sun 5/1015:32UVF - LHR

1 stop24h 13mJetBlue

Sat 11/1011:55LHR - UVF

1 stop31h 19mJetBlue

Deal found 16/9£854

Sat 11/1012:35SLU - LHR

3 stops26h 25mMultiple Airlines

Tue 25/1108:55LHR - SLU

2 stops28h 35mMultiple Airlines

Deal found 15/9£1,002

Fri 3/1018:10SLU - LHR

2 stops20h 50mMultiple Airlines

Wed 31/1212:10LHR - SLU

3 stops29h 00mMultiple Airlines

Deal found 16/9£1,056

Wed 15/1010:15SLU - LHR

3 stops28h 45mMultiple Airlines

Wed 22/1008:40LHR - SLU

3 stops39h 20mMultiple Airlines

Deal found 15/9£1,088

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 17 September 2025.

Sat 4/1014:35UVF - LHR

1 stop13h 45mUnited Airlines

Fri 10/1016:40LHR - UVF

2 stops25h 51mUnited Airlines

Deal found 16/9£807

Fri 17/1015:10UVF - LHR

1 stop15h 40mAir Canada

Thu 30/1018:00LHR - UVF

1 stop25h 25mAir Canada

Deal found 15/9£814

Sat 8/1115:44UVF - LHR

1 stop35h 11mJetBlue

Thu 20/1112:20LHR - UVF

1 stop31h 21mJetBlue

Deal found 14/9£820

Sat 11/1012:35SLU - LHR

3 stops26h 25mMultiple Airlines

Tue 25/1108:55LHR - SLU

2 stops28h 35mMultiple Airlines

Deal found 15/9£1,002

Fri 3/1015:10UVF - LHR

1 stop34h 25mAir Canada

Wed 31/1213:25LHR - UVF

2 stops55h 00mAir Canada

Deal found 16/9£834

Sat 8/1113:52UVF - LHR

1 stop36h 03mUnited Airlines

Thu 20/1112:05LHR - UVF

2 stops56h 20mUnited Airlines

Deal found 14/9£848

Sun 5/1015:32UVF - LHR

1 stop24h 13mJetBlue

Sat 11/1011:55LHR - UVF

1 stop31h 19mJetBlue

Deal found 16/9£854

Fri 3/1018:10SLU - LHR

2 stops20h 50mMultiple Airlines

Wed 31/1212:10LHR - SLU

3 stops29h 00mMultiple Airlines

Deal found 16/9£1,056

Wed 15/1010:15SLU - LHR

2 stops28h 45mMultiple Airlines

Wed 22/1008:40LHR - SLU

3 stops39h 20mMultiple Airlines

Deal found 15/9£1,088

Last-minute flights from Saint Lucia to Heathrow
Discover last-minute flight deals from Saint Lucia to Heathrow. Data last updated 17 September 2025 and is based on user searches.

Fri 3/1015:10UVF - LHR

1 stop34h 25mAir Canada

Wed 31/1213:25LHR - UVF

2 stops55h 00mAir Canada

Deal found 16/9£834

Fri 3/1018:10SLU - LHR

2 stops20h 50mMultiple Airlines

Wed 31/1212:10LHR - SLU

3 stops29h 00mMultiple Airlines

Deal found 16/9£1,056

Sat 4/1014:35UVF - LHR

1 stop13h 45mUnited Airlines

Fri 10/1016:40LHR - UVF

2 stops25h 51mUnited Airlines

Deal found 16/9£807

Sat 4/1014:06UVF - LHR

1 stop14h 24mJetBlue

Sun 12/1008:15LHR - UVF

1 stop35h 05mJetBlue

Deal found 16/9£829

Sun 5/1015:32UVF - LHR

1 stop24h 13mJetBlue

Sun 12/1008:15LHR - UVF

1 stop35h 05mJetBlue

Deal found 16/9£760

Sun 5/1015:32UVF - LHR

1 stop24h 13mJetBlue

Sat 11/1011:55LHR - UVF

1 stop31h 19mJetBlue

Deal found 16/9£854

Sun 5/1015:32UVF - LHR

1 stop24h 13mJetBlue

Mon 13/1008:15LHR - UVF

1 stop34h 59mJetBlue

Deal found 16/9£897

Mon 6/1015:34UVF - LHR

1 stop24h 11mJetBlue

Sun 12/1008:15LHR - UVF

1 stop35h 05mJetBlue

Deal found 16/9£831

Sat 11/1012:35SLU - LHR

3 stops26h 25mMultiple Airlines

Tue 25/1108:55LHR - SLU

2 stops28h 35mMultiple Airlines

Deal found 15/9£1,002

Wed 15/1010:15SLU - LHR

3 stops28h 45mMultiple Airlines

Wed 22/1008:40LHR - SLU

3 stops39h 20mMultiple Airlines

Deal found 15/9£1,088

Fri 17/1015:10UVF - LHR

1 stop15h 40mAir Canada

Thu 30/1018:00LHR - UVF

1 stop25h 25mAir Canada

Deal found 15/9£814

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 17 September 2025.

Sun 21/914:35UVF - LHR

2 stops41h 50mMultiple Airlines

Deal found 14/9£399

Tue 28/1015:56UVF - LHR

1 stop25h 44mJetBlue

Deal found 14/9£460

Tue 28/1014:40UVF - LHR

2 stops42h 10mWestJet

Deal found 14/9£480

Sun 16/1117:15UVF - LHR

2 stops23h 20mAir Canada

Deal found 15/9£496

Sun 11/117:15UVF - LHR

2 stops23h 20mAir Canada

Deal found 14/9£502

Tue 28/1014:40UVF - LHR

3 stops23h 20mMultiple Airlines

Deal found 14/9£510

Sat 20/1212:35SLU - LHR

1 stop13h 15mMultiple Airlines

Deal found 15/9£647

Sun 28/914:35UVF - LHR

2 stops40h 30mWestJet

Deal found 14/9£700

Sat 20/1216:47UVF - LHR

1 stop33h 38mMultiple Airlines

Deal found 15/9£727

Sun 28/915:20UVF - LHR

1 stop24h 25mJetBlue

Deal found 14/9£811

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

Sat 4/10

14:35-09:20

1 stop13h 45m

London Heathrow

Fri 10/10

16:40-13:31

2 stops25h 51m

£807

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 17/10

15:10-11:50

1 stop15h 40m

London Heathrow

Thu 30/10

18:00-15:25

1 stop25h 25m

£814

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sat 8/11

15:44-06:55

1 stop35h 11m

London Heathrow

Thu 20/11

12:20-15:41

1 stop31h 21m

£820

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 3/10

15:10-06:35

1 stop34h 25m

London Heathrow

Wed 31/12

13:25-16:25

2 stops55h 00m

£834

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sat 8/11

13:52-05:55

1 stop36h 03m

London Heathrow

Thu 20/11

12:05-16:25

2 stops56h 20m

£848

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 5/10

15:32-20:45

1 stop24h 13m

London Heathrow

Sat 11/10

11:55-14:14

1 stop31h 19m

£854

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sat 11/10

12:35-20:00

3 stops26h 25m

London Heathrow

Tue 25/11

08:55-09:30

2 stops28h 35m

£1,002

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Fri 3/10

18:10-20:00

2 stops20h 50m

London Heathrow

Wed 31/12

12:10-13:10

3 stops29h 00m

£1,056

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Wed 15/10

10:15-20:00

2 stops28h 45m

London Heathrow

Wed 22/10

08:40-19:00

3 stops39h 20m

£1,088

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 21/9

14:35-13:25

2 stops41h 50m

£399

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 19 results

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

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

7.4

Good

664 reviews

Check prices

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

7.4

Good

664 reviews

Virgin Atlantic

7.4

Good

664 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pratap,Aug 2025

JFK - LHR

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 13h 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.
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

Milton Keynes

Croydon

Hounslow

Slough

Gatwick

Northampton

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Watford

Winchester

Chichester

Ipswich

Swindon

Dartford

Guildford

Brentford

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Saint Lucia to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£564	Average£687	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Fly with Cheapflights

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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Cheap flights from Saint Lucia to London Heathrow Airport from £399

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 21/9. 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

Keep the following information in mind while searching for Saint Lucia to Heathrow flight deals. Data was last updated 17 September 2025.

Round-trip from

One-way from

Find 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 17 September 2025.

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 17 September 2025.

Cheapflights Fare Finder

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

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.

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?

Reviews of airlines servicing Heathrow

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.

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?

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?

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

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

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Saint Lucia to Heathrow

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?

Why should you use Cheapflights to find cheap flight tickets from Saint Lucia to Heathrow?

Can Cheapflights find flights from Saint Lucia to Heathrow with no change fees?

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

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Book with Flexibility

Travel Smart

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 17 September 2025.