What are the cheapest airlines to fly from London Heathrow Airport to Saint Lucia one-way?

For one-way options, check prices for WestJet. According to our data, you can fly for as low as £455. Users have also found prices from £481 and £539 on Virgin Atlantic and Air Canada, respectively.

What are the cheapest flights from London Heathrow Airport to Saint Lucia?

While on average a flight from London Heathrow Airport to Saint Lucia is generally £1,022, our data shows the cheapest flight currently is £456. When looking at the most popular route, (London Heathrow - Castries Hewanorra), you can expect to pay £487 for that flight.

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: Finnair, British Airways or KLM.

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

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Saint Lucia. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from London Heathrow Airport to Saint Lucia?

To save up to 1% on this flight, we recommend booking at least 32 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from London Heathrow Airport to Saint Lucia from £430 1-2 weeks out and tickets from £430 for flights departing within the next 72 hours.

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

Our data shows that June tends to be the cheapest month to fly to Saint Lucia from London Heathrow Airport. Users have commonly found prices around £650 for the month, but tickets can be as low as £384. Due to multiple factors, prepare for potentially higher prices in December.

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.

£664+ Flights from London Heathrow Airport to Saint Lucia

Cheap flight deals from Heathrow to Saint Lucia

Round-trip from	£487
One-way from	£424
Popular in	December
Cheapest in	June
Average price	£642
Good round-trip deal	£502 or less

Virgin Atlantic
12/3-19/3
Nonstop
17h 55m total
London to Saint Lucia

Search Deals

31/3
3 total stops
36h 44m total
London to Saint Lucia

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£82 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£34 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Price to beat on a round-trip flight from London Heathrow to Saint Lucia.

Search Deals

Find flight deals from Heathrow to Saint Lucia

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 21 February 2025.

Wed 12/313:05LHR - UVF

Nonstop9h 25mVirgin Atlantic

Wed 19/321:00UVF - LHR

Nonstop8h 30mVirgin Atlantic

Deal found 20/2£487

Sun 6/408:30LHR - UVF

1 stop35h 15mAir Canada

Wed 23/415:45UVF - LHR

1 stop33h 50mAir Canada

Deal found 20/2£563

Wed 26/319:30LHR - UVF

2 stops47h 15mMultiple Airlines

Wed 9/415:45UVF - LHR

1 stop36h 50mMultiple Airlines

Deal found 20/2£592

Mon 10/318:00LHR - UVF

1 stop24h 45mLufthansa

Mon 24/315:45UVF - LHR

2 stops35h 25mLufthansa

Deal found 20/2£609

Mon 10/1108:40LHR - SLU

1 stop12h 50mMultiple Airlines

Thu 20/1115:20SLU - LHR

1 stop11h 25mMultiple Airlines

Deal found 20/2£669

Thu 20/314:30LHR - UVF

1 stop27h 10mFinnair

Thu 27/314:40UVF - LHR

1 stop15h 00mFinnair

Deal found 20/2£684

Fri 14/316:10LHR - UVF

1 stop24h 22mDelta

Sat 29/315:20UVF - LHR

1 stop17h 10mDelta

Deal found 20/2£711

Tue 1/411:00LHR - UVF

1 stop32h 10mAmerican Airlines

Tue 8/414:45UVF - LHR

1 stop14h 50mAmerican Airlines

Deal found 20/2£717

Fri 18/414:10LHR - UVF

1 stop30h 20mUnited Airlines

Sat 3/512:55UVF - LHR

1 stop17h 50mUnited Airlines

Deal found 20/2£909

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 21 February 2025.

Wed 12/313:05LHR - UVF

Nonstop9h 25mVirgin Atlantic

Wed 19/321:00UVF - LHR

Nonstop8h 30mVirgin Atlantic

Deal found 20/2£487

Sun 6/408:30LHR - UVF

1 stop35h 15mAir Canada

Wed 23/415:45UVF - LHR

1 stop33h 50mAir Canada

Deal found 20/2£563

Wed 26/319:30LHR - UVF

2 stops47h 15mMultiple Airlines

Wed 9/415:45UVF - LHR

1 stop36h 50mMultiple Airlines

Deal found 20/2£592

Mon 10/318:00LHR - UVF

1 stop24h 45mLufthansa

Mon 24/315:45UVF - LHR

2 stops35h 25mLufthansa

Deal found 20/2£609

Thu 20/314:30LHR - UVF

1 stop27h 10mFinnair

Thu 27/314:40UVF - LHR

1 stop15h 00mFinnair

Deal found 20/2£684

Fri 14/316:10LHR - UVF

1 stop24h 22mDelta

Sat 29/315:20UVF - LHR

1 stop17h 10mDelta

Deal found 20/2£711

Tue 1/411:00LHR - UVF

1 stop32h 10mAmerican Airlines

Tue 8/414:45UVF - LHR

1 stop14h 50mAmerican Airlines

Deal found 20/2£717

Fri 18/414:10LHR - UVF

1 stop30h 20mUnited Airlines

Sat 3/512:55UVF - LHR

1 stop17h 50mUnited Airlines

Deal found 20/2£909

Thu 20/309:35LHR - SLU

1 stop31h 35mMultiple Airlines

Tue 25/307:30SLU - LHR

1 stop22h 05mMultiple Airlines

Deal found 20/2£675

Last-minute flights from Heathrow to Saint Lucia
Discover last-minute flight deals from Heathrow to Saint Lucia. Data last updated 21 February 2025 and is based on user searches.

Wed 26/213:05LHR - UVF

Nonstop9h 25mVirgin Atlantic

Wed 26/321:00UVF - LHR

Nonstop8h 30mVirgin Atlantic

Deal found 20/2£510

Wed 26/219:25LHR - UVF

2 stops48h 20mAir Canada

Wed 26/315:45UVF - LHR

1 stop16h 05mAir Canada

Deal found 20/2£569

Wed 26/213:05LHR - UVF

Nonstop9h 25mMultiple Airlines

Wed 26/315:45UVF - LHR

1 stop16h 05mMultiple Airlines

Deal found 20/2£922

Thu 27/208:55LHR - UVF

2 stops34h 11mDelta

Wed 5/316:26UVF - LHR

2 stops23h 44mDelta

Deal found 20/2£837

Sat 1/319:50LHR - UVF

2 stops23h 55mFinnair

Thu 27/315:10UVF - LHR

1 stop16h 50mFinnair

Deal found 20/2£774

Sat 1/313:30LHR - UVF

1 stop29h 49mAmerican Airlines

Thu 27/315:10UVF - LHR

1 stop14h 05mAmerican Airlines

Deal found 20/2£811

Sun 2/313:30LHR - SLU

1 stop30h 25mMultiple Airlines

Mon 10/316:25SLU - LHR

1 stop12h 10mMultiple Airlines

Deal found 20/2£791

Tue 4/318:00LHR - UVF

1 stop25h 45mAir Canada

Tue 11/315:45UVF - LHR

1 stop16h 05mAir Canada

Deal found 21/2£562

Mon 10/309:00LHR - UVF

2 stops33h 45mLufthansa

Mon 24/315:45UVF - LHR

2 stops35h 25mLufthansa

Deal found 20/2£609

Tue 11/311:45LHR - UVF

2 stops30h 15mKLM

Thu 20/315:20UVF - LHR

1 stop16h 20mKLM

Deal found 20/2£1,049

Wed 12/313:05LHR - UVF

Nonstop9h 25mVirgin Atlantic

Wed 19/321:00UVF - LHR

Nonstop8h 30mVirgin Atlantic

Deal found 20/2£487

Fri 14/316:10LHR - UVF

1 stop24h 22mDelta

Sat 29/315:20UVF - LHR

1 stop17h 10mDelta

Deal found 20/2£711

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 21 February 2025.

Mon 31/306:00LHR - UVF

3 stops36h 44mMultiple Airlines

Deal found 20/2£424

Tue 25/314:50LHR - UVF

2 stops50h 54mWestJet

Deal found 20/2£455

Fri 28/313:05LHR - UVF

Nonstop9h 25mVirgin Atlantic

Deal found 20/2£481

Sun 4/511:25LHR - SLU

1 stop12h 35mMultiple Airlines

Deal found 20/2£528

Thu 17/408:30LHR - UVF

1 stop35h 15mAir Canada

Deal found 20/2£539

Fri 28/312:05LHR - UVF

2 stops31h 20mUnited Airlines

Deal found 20/2£566

Sun 4/513:05LHR - UVF

1 stop29h 54mKLM

Deal found 20/2£759

Mon 31/313:05LHR - UVF

1 stop29h 55mDelta

Deal found 20/2£1,363

Find flights from Heathrow to Saint Lucia within your budget

Fly from

Fly to

Route

Depart

Return

Price

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 12/3

13:05-18:30

Nonstop9h 25m

Castries Hewanorra

Wed 19/3

21:00-09:30

Nonstop8h 30m

£487

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 6/4

08:30-14:45

1 stop35h 15m

Castries Hewanorra

Wed 23/4

15:45-06:35

1 stop33h 50m

£563

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 26/3

19:30-14:45

2 stops47h 15m

Castries Hewanorra

Wed 9/4

15:45-09:35

1 stop36h 50m

£592

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 10/3

18:00-14:45

1 stop24h 45m

Castries Hewanorra

Mon 24/3

15:45-07:10

2 stops35h 25m

£609

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Thu 20/3

09:35-13:10

1 stop31h 35m

Castries George F. L. Charle

Tue 25/3

07:30-09:35

1 stop22h 05m

£675

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 20/3

14:30-13:40

1 stop27h 10m

Castries Hewanorra

Thu 27/3

14:40-09:40

1 stop15h 00m

£684

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Fri 14/3

16:10-12:32

1 stop24h 22m

Castries Hewanorra

Sat 29/3

15:20-12:30

1 stop17h 10m

£711

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 1/4

11:00-14:10

1 stop32h 10m

Castries Hewanorra

Tue 8/4

14:45-10:35

1 stop14h 50m

£717

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Fri 18/4

14:10-15:30

1 stop30h 20m

Castries Hewanorra

Sat 3/5

12:55-11:45

1 stop17h 50m

£909

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 31/3

06:00-13:44

3 stops36h 44m

£424

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 17 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.

Travel insights for flights from Heathrow to Saint Lucia

Get recent, data-driven insights about flights from Heathrow to Saint Lucia including ideal travel times, pricing trends, and more.

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 £328). Flying from London Heathrow Airport to Saint Lucia in December is currently the most expensive (average of £1,100). 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 7% on your trip compared to booking a flight at midday.

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

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

Reviews of airlines servicing Saint Lucia

To help decide which airline to fly from London to Saint Lucia, see what other customers have to say about Delta, KLM and Finnair. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,213 reviews

Check prices

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.

Delta

8.0

Very Good

8,213 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

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.

KLM

7.8

Good

1,331 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

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.

Finnair

7.6

Good

1,273 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

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

7.5

Good

654 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

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

8,759 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

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 London Heathrow Airport to Saint Lucia one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as £455. Users have also found prices from £481 and £539 on Virgin Atlantic and Air Canada, respectively.
What are the cheapest flights from London Heathrow Airport to Saint Lucia?
While on average a flight from London Heathrow Airport to Saint Lucia is generally £1,022, our data shows the cheapest flight currently is £456. When looking at the most popular route, (London Heathrow - Castries Hewanorra), you can expect to pay £487 for that flight.
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 £328). Flying from London Heathrow Airport to Saint Lucia in December is currently the most expensive (average of £1,100). 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 St. John's flights

Gatwick to Road Town flights

Heathrow to Puerto Plata flights

Gatwick to Pointe-à-Pitre 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. George's

Direct flights to St. John's

Direct flights to Kingstown

Direct flights to Nassau

Direct flights to Castries

Direct flights to George Town

Direct flights to Providenciales

Direct flights to Basseterre

Direct flights to Oranjestad

Direct flights to Scarborough

Top 4 airlines flying from Heathrow to Saint Lucia

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£452	Average£646	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£498	Average£677	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£544	Average£1,398	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Finnair	Cheapest£684	Average£913	FlexibilityNo cancel fee	On-time76%	Search Finnair 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 £424

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 31/3. 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

Keep the following information in mind while searching for Heathrow to Saint Lucia flight deals. Data was last updated 21 February 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find 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 21 February 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 21 February 2025.

Find flights from Heathrow to Saint Lucia within your budget

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.

Travel insights for flights from Heathrow to Saint Lucia

Get recent, data-driven insights about flights from Heathrow to Saint Lucia including ideal travel times, pricing trends, and more.

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 21 February 2025.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Saint Lucia. Price data was last updated on 16 December 2024.

Reviews of airlines servicing Saint Lucia

To help decide which airline to fly from London to Saint Lucia, see what other customers have to say about Delta, KLM and Finnair. 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 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.

What are the cheapest airlines to fly from London Heathrow Airport to Saint Lucia one-way?

What are the cheapest flights 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 4 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 21 February 2025.