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

JetBlue and Delta can get you from London Heathrow Airport to Saint Lucia in just under 33h 25m. Your travel time can differ by up to 2h 13m. The distance between London Heathrow Airport and Saint Lucia is about 4217 mi. Both multi-stop and direct flights can be found to your destination and back.

What are the most popular airlines that fly from London Heathrow Airport to Saint Lucia?

Before booking your flight from London Heathrow Airport to Saint Lucia check out the most popular airlines for this route: British Airways, Virgin Atlantic or Finnair.

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

Yes. In addition to deals on Heathrow to Saint Lucia flights, Cheapflights offers holiday packages that include both flights and hotel.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Saint Lucia.

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

Yes. Cheapflights offers flight deals from Heathrow to Saint Lucia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£434+ Flights from London Heathrow Airport to Saint Lucia

Cheap flight deals from Heathrow to Saint Lucia

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Saint Lucia
Explore the most affordable flight options available from Heathrow to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 December 2025.

Thu 25/1213:25LHR - UVF

2 stops31h 00mAir Canada

Thu 8/117:15UVF - LHR

2 stops23h 20mAir Canada

Deal found 14/12£755

Wed 24/1213:25LHR - UVF

2 stops55h 00mAir Canada

Wed 14/117:15UVF - LHR

1 stop35h 15mAir Canada

Deal found 12/12£767

Thu 25/1213:00LHR - UVF

1 stop31h 25mAir Canada

Wed 14/117:15UVF - LHR

1 stop14h 05mAir Canada

Deal found 12/12£770

Fri 26/1208:55LHR - UVF

1 stop32h 41mDelta

Wed 14/116:25UVF - LHR

2 stops34h 25mDelta

Deal found 12/12£870

Mon 15/1209:40LHR - SLU

1 stop11h 50mMultiple Airlines

Fri 19/1212:35SLU - LHR

1 stop17h 20mMultiple Airlines

Deal found 14/12£1,143

Mon 29/1213:00LHR - SLU

2 stops34h 00mMultiple Airlines

Mon 12/109:10SLU - LHR

2 stops22h 10mMultiple Airlines

Deal found 14/12£1,148

Wed 24/1213:25LHR - SLU

2 stops32h 10mMultiple Airlines

Fri 16/119:10SLU - LHR

3 stops32h 00mMultiple Airlines

Deal found 13/12£1,183

Wed 17/1209:40LHR - SLU

1 stop32h 55mMultiple Airlines

Sun 21/1212:10SLU - LHR

1 stop13h 15mMultiple Airlines

Deal found 13/12£1,204

Thu 25/1218:00LHR - SLU

3 stops28h 25mMultiple Airlines

Thu 8/113:55SLU - LHR

2 stops20h 30mMultiple Airlines

Deal found 14/12£1,351

Mon 29/1213:00LHR - SLU

2 stops34h 00mMultiple Airlines

Tue 13/112:35SLU - LHR

2 stops18h 45mMultiple Airlines

Deal found 13/12£1,364

Mon 15/1209:40LHR - SLU

1 stop11h 50mMultiple Airlines

Tue 30/1207:30SLU - LHR

1 stop22h 05mMultiple Airlines

Deal found 14/12£1,385

Sat 27/1214:30LHR - SLU

1 stop24h 55mMultiple Airlines

Tue 6/107:30SLU - LHR

1 stop22h 25mMultiple Airlines

Deal found 14/12£1,385

Best flights from Heathrow to Saint Lucia
Discover carefully curated flight deals from Heathrow to Saint Lucia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 December 2025.

Mon 19/108:05LHR - UVF

1 stop35h 38mJetBlue

Mon 2/217:21UVF - LHR

1 stop24h 19mJetBlue

Deal found 13/12£690

Mon 9/309:40LHR - SLU

1 stop13h 20mMultiple Airlines

Sun 15/315:45SLU - LHR

1 stop14h 10mMultiple Airlines

Deal found 12/12£709

Tue 13/109:40LHR - UVF

2 stops33h 25mDelta

Tue 20/116:25UVF - LHR

1 stop15h 15mDelta

Deal found 14/12£713

Thu 5/209:40LHR - UVF

2 stops33h 25mDelta

Thu 12/216:25UVF - LHR

1 stop15h 15mDelta

Deal found 14/12£713

Sat 28/208:05LHR - UVF

1 stop35h 55mJetBlue

Sat 7/318:40UVF - LHR

1 stop32h 15mJetBlue

Deal found 14/12£714

Wed 25/213:25LHR - SLU

1 stop33h 35mMultiple Airlines

Wed 11/312:35SLU - LHR

1 stop13h 15mMultiple Airlines

Deal found 12/12£748

Mon 16/208:55LHR - UVF

1 stop34h 10mDelta

Mon 23/216:25UVF - LHR

2 stops34h 25mDelta

Deal found 13/12£714

Wed 21/113:25LHR - SLU

1 stop26h 40mMultiple Airlines

Wed 4/215:45SLU - LHR

1 stop12h 45mMultiple Airlines

Deal found 13/12£756

Sat 14/216:50LHR - UVF

2 stops50h 15mDelta

Thu 19/216:25UVF - LHR

2 stops34h 25mDelta

Deal found 13/12£714

Thu 5/313:25LHR - SLU

1 stop33h 35mMultiple Airlines

Tue 10/315:45SLU - LHR

1 stop12h 45mMultiple Airlines

Deal found 14/12£759

Sun 15/215:50LHR - UVF

1 stop27h 15mDelta

Thu 19/216:25UVF - LHR

2 stops34h 25mDelta

Deal found 13/12£714

Sat 14/216:50LHR - UVF

2 stops50h 15mDelta

Mon 23/216:25UVF - LHR

2 stops37h 50mDelta

Deal found 13/12£714

Tue 20/110:35LHR - SLU

1 stop29h 30mMultiple Airlines

Thu 29/112:35SLU - LHR

1 stop13h 15mMultiple Airlines

Deal found 14/12£825

Sun 11/108:00LHR - SLU

1 stop32h 05mMultiple Airlines

Sun 25/112:10SLU - LHR

1 stop13h 15mMultiple Airlines

Deal found 14/12£846

Mon 26/113:20LHR - SLU

1 stop29h 55mMultiple Airlines

Wed 4/315:45SLU - LHR

1 stop12h 45mMultiple Airlines

Deal found 12/12£881

Sat 3/114:30LHR - SLU

1 stop24h 55mMultiple Airlines

Sat 10/115:45SLU - LHR

1 stop14h 10mMultiple Airlines

Deal found 13/12£904

Wed 14/109:40LHR - SLU

1 stop13h 20mMultiple Airlines

Thu 15/115:20SLU - LHR

1 stop14h 35mMultiple Airlines

Deal found 14/12£935

Last-minute flights from Heathrow to Saint Lucia
Discover last-minute flight deals from Heathrow to Saint Lucia. Data last updated 15 December 2025 and is based on user searches.

Sun 11/118:00LHR - UVF

1 stop26h 25mAir Canada

Fri 23/117:15UVF - LHR

1 stop14h 05mAir Canada

Deal found 13/12£705

Sun 11/108:00LHR - SLU

1 stop32h 05mMultiple Airlines

Sun 25/112:10SLU - LHR

1 stop13h 15mMultiple Airlines

Deal found 14/12£846

Mon 12/109:40LHR - SLU

1 stop11h 50mMultiple Airlines

Mon 19/115:45SLU - LHR

1 stop14h 10mMultiple Airlines

Deal found 13/12£719

Mon 12/115:50LHR - UVF

1 stop27h 15mDelta

Mon 26/116:25UVF - LHR

1 stop15h 15mDelta

Deal found 13/12£748

Tue 13/109:40LHR - UVF

2 stops33h 25mDelta

Tue 20/116:25UVF - LHR

1 stop15h 15mDelta

Deal found 14/12£713

Tue 13/113:00LHR - UVF

1 stop31h 20mAir Canada

Fri 23/117:15UVF - LHR

1 stop14h 05mAir Canada

Deal found 13/12£717

Fri 16/117:00LHR - UVF

1 stop24h 46mAmerican Airlines

Tue 20/117:02UVF - LHR

1 stop15h 18mAmerican Airlines

Deal found 13/12£748

Mon 19/108:05LHR - UVF

1 stop35h 38mJetBlue

Mon 2/217:21UVF - LHR

1 stop24h 19mJetBlue

Deal found 13/12£690

Tue 20/110:35LHR - SLU

1 stop29h 30mMultiple Airlines

Thu 29/112:35SLU - LHR

1 stop13h 15mMultiple Airlines

Deal found 14/12£825

Wed 21/113:25LHR - SLU

1 stop29h 50mMultiple Airlines

Wed 4/215:45SLU - LHR

1 stop12h 45mMultiple Airlines

Deal found 14/12£755

Thu 29/118:00LHR - UVF

2 stops25h 03mAmerican Airlines

Sat 28/313:07UVF - LHR

1 stop14h 03mAmerican Airlines

Deal found 13/12£721

Sat 31/112:10LHR - UVF

1 stop31h 52mAmerican Airlines

Sun 15/217:00UVF - LHR

1 stop15h 05mAmerican Airlines

Deal found 13/12£716

One-way flights from Heathrow to Saint Lucia
Search for one-way flight options from Heathrow to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated 15 December 2025.

Mon 26/108:05LHR - UVF

1 stop35h 38mJetBlue

Deal found 14/12£434

Mon 26/118:00LHR - UVF

1 stop25h 43mMultiple Airlines

Deal found 14/12£449

Mon 26/114:50LHR - UVF

3 stops28h 00mWestJet

Deal found 14/12£472

Mon 26/109:40LHR - SLU

1 stop11h 50mMultiple Airlines

Deal found 14/12£513

Sat 17/112:05LHR - UVF

2 stops56h 20mAir Canada

Deal found 14/12£524

Sat 17/114:50LHR - UVF

3 stops28h 00mWestJet

Deal found 14/12£536

Sat 17/114:30LHR - SLU

1 stop24h 55mMultiple Airlines

Deal found 14/12£552

Tue 30/1213:00LHR - UVF

1 stop31h 20mAir Canada

Deal found 13/12£684

Tue 30/1211:10LHR - SLU

2 stops35h 50mMultiple Airlines

Deal found 13/12£712

Tue 30/1206:35LHR - UVF

3 stops37h 45mMultiple Airlines

Deal found 13/12£784

Find flight deals from Heathrow to Saint Lucia

Round-trip from	£690
One-way from	£434
Popular in	April
Cheapest in	November
Average price	£990

JetBlue
19/1-2/2
2 total stops
59h 57m total
London to Saint Lucia

Search Deals

JetBlue
26/1
1 total stop
35h 38m total
London to Saint Lucia

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£85 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 10% potential price decrease (£51 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 19/1

08:05-15:43

1 stop35h 38m

Castries Hewanorra

Mon 2/2

17:21-21:40

1 stop24h 19m

£690

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 9/3

09:40-19:00

1 stop13h 20m

Castries George F. L. Charle

Sun 15/3

15:45-09:55

1 stop14h 10m

£709

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 13/1

09:40-15:05

2 stops33h 25m

Castries Hewanorra

Tue 20/1

16:25-11:40

1 stop15h 15m

£713

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 5/2

09:40-15:05

2 stops33h 25m

Castries Hewanorra

Thu 12/2

16:25-11:40

1 stop15h 15m

£713

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sat 28/2

08:05-16:00

1 stop35h 55m

Castries Hewanorra

Sat 7/3

18:40-06:55

1 stop32h 15m

£714

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 16/2

08:55-15:05

1 stop34h 10m

Castries Hewanorra

Mon 23/2

16:25-06:50

2 stops34h 25m

£714

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sat 14/2

16:50-15:05

2 stops50h 15m

Castries Hewanorra

Thu 19/2

16:25-06:50

2 stops34h 25m

£714

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 15/2

15:50-15:05

1 stop27h 15m

Castries Hewanorra

Thu 19/2

16:25-06:50

2 stops34h 25m

£714

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sat 14/2

16:50-15:05

2 stops50h 15m

Castries Hewanorra

Mon 23/2

16:25-10:15

2 stops37h 50m

£714

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Wed 25/2

13:25-19:00

1 stop33h 35m

Castries George F. L. Charle

Wed 11/3

12:35-05:50

1 stop13h 15m

£748

Flights are sorted by cheapest return flights first.

Deals found on 14/12

Showing 1-10 of 27 results

Best time to book a flight from Heathrow to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Heathrow 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 London Heathrow Airport to Saint Lucia

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Saint Lucia (average of £381). Flying from London Heathrow Airport to Saint Lucia in July is currently the most expensive (average of £719). 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.

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

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Saint Lucia in the morning. If you’re flexible enough to do this you can expect to save up to 51% on your trip compared to booking a flight in the afternoon.

How often are flights from London to Saint Lucia delayed?

About 18% of weekly flights between London and Saint Lucia have experienced delays in the past year, with the average delay time being 150 minutes.

What is the most punctual flight time for London to Saint Lucia flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Saint Lucia flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 16% of flights being delayed.

Reviews of airlines servicing Saint Lucia

Read reviews from past customers who have flown with KLM, Finnair, andVirgin Atlantic from London Heathrow Airport to Saint Lucia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

KLM

7.7

Good

1,430 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Finnair

7.6

Good

1,336 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Virgin Atlantic

7.5

Good

675 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Air Canada

7.1

Good

10,525 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

British Airways

6.7

Okay

7,575 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

How long is the flight from London Heathrow Airport to Saint Lucia?
JetBlue and Delta can get you from London Heathrow Airport to Saint Lucia in just under 33h 25m. Your travel time can differ by up to 2h 13m. The distance between London Heathrow Airport and Saint Lucia is about 4217 mi. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Heathrow to Saint Lucia that include hotel bookings?
Yes. In addition to deals on Heathrow to Saint Lucia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Saint Lucia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Saint Lucia.
Can I find deals for business class flights from Heathrow to Saint Lucia?
Yes. Cheapflights offers flight deals from Heathrow to Saint Lucia 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 London Heathrow Airport to Saint Lucia?
Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Saint Lucia (average of £381). Flying from London Heathrow Airport to Saint Lucia in July is currently the most expensive (average of £719). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Saint Lucia

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London City to Luis Munoz Marin Intl flights

London City to Castries flights

Gatwick to Road Town flights

Stansted to Kingston flights

London City to St. John's flights

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Heathrow to Providenciales flights

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Gatwick to Simpson Bay flights

Heathrow to Havana flights

Stansted to Luis Munoz Marin Intl flights

Direct flights to

Direct flights to Montego Bay

Direct flights to Bridgetown

Direct flights to Kingston

Direct flights to Punta Cana

Direct flights to Port of Spain

Direct flights to St. John's

Direct flights to Kingstown

Direct flights to St. George's

Direct flights to Nassau

Direct flights to Castries

Direct flights to George Town

Direct flights to Providenciales

Direct flights to Oranjestad

Direct flights to Basseterre

Direct flights to Scarborough

Top 5 airlines flying from Heathrow to Saint Lucia

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£373	Average£520	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£461	Average£625	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Air Canada	Cheapest£520	Average£668	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Finnair	Cheapest£645	Average£827	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£685	Average£1,325	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Saint Lucia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Saint Lucia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Saint Lucia for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Saint Lucia with no change fees.

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

Yes! Start tracking prices for Heathrow to Saint Lucia 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 London Heathrow Airport to Saint Lucia from £434

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Saint Lucia

Cheapest flights from Heathrow to Saint LuciaExplore the most affordable flight options available from Heathrow to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 December 2025.

Explore the most affordable flight options available from Heathrow to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 December 2025.

Find flight deals from Heathrow to Saint Lucia

Keep the following information in mind while searching for Heathrow to Saint Lucia flight deals. Data was last updated 15 December 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Saint Lucia

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

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

Find hourly flight availability from Heathrow to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 December 2025.

How often are flights from London to Saint Lucia delayed?

What is the most punctual flight time for London to Saint Lucia flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on London to Saint Lucia flights?

Reviews of airlines servicing Saint Lucia

Read reviews from past customers who have flown with KLM, Finnair, andVirgin Atlantic from London Heathrow Airport to Saint Lucia. Users can see the overall rating for each airline as well as how each is rated 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 Heathrow to Saint Lucia. 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 London Heathrow Airport to Saint Lucia?

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

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

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

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

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 Heathrow to Saint Lucia

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

Top 5 airlines flying from Heathrow to Saint Lucia

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 Heathrow to Saint Lucia?

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

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

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

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Cheapest flights from Heathrow to Saint Lucia
Explore the most affordable flight options available from Heathrow to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 December 2025.