Which airlines fly to Saint Lucia?

British Airways, Finnair and Air Canada are the top three most popular airlines that fly to Saint Lucia from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 41% of people opting to fly with this airline when travelling to Saint Lucia. Keep in mind that there are 5 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.

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

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

How often are flights from London to Saint Lucia delayed?

Historically, on average around 18% of flights between London and Saint Lucia have experienced a delay on any given week. The average delay length over the past 12 months has been 150 minutes.

What is the cheapest airline that flies from London Heathrow to Saint Lucia?

JetBlue and WestJet are the most popular carriers operating from London Heathrow to Saint Lucia

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

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

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from London Heathrow Airport to Saint Lucia?

Prices for flights from London Heathrow Airport to Saint Lucia are refreshed on a daily basis.

How many operators does momondo search for flights from London Heathrow Airport to Saint Lucia?

The number of operators available for flights from London Heathrow Airport to Saint Lucia is 5 as of January 2026.

How old do you have to be to fly from London Heathrow Airport to Saint Lucia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Saint Lucia.

What documentation or ID do you need to fly to Saint Lucia?

The travel and health documents you'll need for your trip to Saint Lucia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£338 Cheap Flights from London Heathrow Airport to Saint Lucia in 2026

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Find the cheapest flights from London Heathrow Airport to Saint Lucia

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One-way

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Enter your travel dates to find the best prices.

07:25 - 16:01

LHR

UVF

36h 36m1 stop

18:40 - 06:55

UVF

LHR

32h 15m1 stop

£646JetBlue

Tue, 3 Mar - Sat, 7 Mar

09:00 - 16:25

LHR

UVF

35h 25m2 stops

17:15 - 06:30

UVF

LHR

33h 15m1 stop

£649Air Canada

Wed, 4 Feb - Wed, 11 Feb

09:20 - 19:00

LHR

SLU

14h 40m1 stop

15:45 - 09:20

SLU

LHR

12h 35m1 stop

£650Multiple Airlines

Sat, 6 Jun - Sat, 20 Jun

09:00 - 16:25

LHR

UVF

35h 25m2 stops

17:15 - 07:10

UVF

LHR

33h 55m2 stops

£652Air Canada

Wed, 4 Feb - Wed, 11 Feb

07:25 - 16:01

LHR

UVF

36h 36m1 stop

15:48 - 21:40

UVF

LHR

25h 52m1 stop

£655JetBlue

Tue, 3 Mar - Tue, 17 Mar

09:00 - 16:25

LHR

UVF

35h 25m2 stops

16:15 - 07:10

UVF

LHR

34h 55m2 stops

£657Air Canada

Thu, 5 Mar - Thu, 12 Mar

09:20 - 19:00

LHR

SLU

14h 40m1 stop

15:45 - 09:20

SLU

LHR

12h 35m1 stop

£657Multiple Airlines

Mon, 11 May - Mon, 18 May

18:00 - 16:25

LHR

UVF

26h 25m1 stop

16:15 - 08:30

UVF

LHR

36h 15m1 stop

£658Air Canada

Sun, 18 Jan - Wed, 18 Mar

09:00 - 16:25

LHR

UVF

35h 25m2 stops

17:15 - 06:30

UVF

LHR

33h 15m1 stop

£661Air Canada

Wed, 21 Jan - Wed, 28 Jan

11:10 - 16:25

LHR

UVF

33h 15m1 stop

16:15 - 20:35

UVF

LHR

24h 20m2 stops

£661Air Canada

Sun, 18 Jan - Wed, 18 Mar

Air Canada flights from London Heathrow Airport to Saint Lucia

Our best Air Canada deals on London Heathrow Airport to Saint Lucia flight tickets

Air Canada

23 Jan

LHR13:45London Heathrow

54h 40m

2 stops

UVF16:25Castries Hewanorra

5 Feb

UVF17:15Castries Hewanorra

35h 15m

1 stop

LHR08:30London Heathrow

£643

Air Canada

14 Jan

LHR11:10London Heathrow

33h 15m

1 stop

UVF16:25Castries Hewanorra

21 Jan

UVF17:15Castries Hewanorra

35h 15m

1 stop

LHR08:30London Heathrow

£649

Air Canada

19 Jan

LHR19:25London Heathrow

48h 55m

2 stops

UVF16:20Castries Hewanorra

29 Jan

UVF17:15Castries Hewanorra

33h 15m

1 stop

LHR06:30London Heathrow

£651

American Airlines flights from London Heathrow Airport to Saint Lucia

Our best American Airlines deals on London Heathrow Airport to Saint Lucia flight tickets

American Airlines

20 Feb

LHR10:05London Heathrow

30h 56m

1 stop

UVF13:01Castries Hewanorra

28 Feb

UVF14:07Castries Hewanorra

15h 33m

1 stop

LHR09:40London Heathrow

£715

American Airlines

23 Jan

LHR14:45London Heathrow

28h 56m

1 stop

UVF15:41Castries Hewanorra

30 Jan

UVF17:02Castries Hewanorra

20h 13m

2 stops

LHR17:15London Heathrow

£795

American Airlines

19 Jan

LHR11:15London Heathrow

32h 47m

1 stop

UVF16:02Castries Hewanorra

2 Feb

UVF14:46Castries Hewanorra

17h 34m

1 stop

LHR12:20London Heathrow

£814

momondo 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

Tue 3/3

07:25-16:01

1 stop36h 36m

Castries Hewanorra

Sat 7/3

18:40-06:55

1 stop32h 15m

£646

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 4/2

09:00-16:25

2 stops35h 25m

Castries Hewanorra

Wed 11/2

17:15-06:30

1 stop33h 15m

£649

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Sat 6/6

09:20-19:00

1 stop14h 40m

Castries George F. L. Charle

Sat 20/6

15:45-09:20

1 stop12h 35m

£650

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 4/2

09:00-16:25

2 stops35h 25m

Castries Hewanorra

Wed 11/2

17:15-07:10

2 stops33h 55m

£652

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 3/3

07:25-16:01

1 stop36h 36m

Castries Hewanorra

Tue 17/3

15:48-21:40

1 stop25h 52m

£655

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 5/3

09:00-16:25

2 stops35h 25m

Castries Hewanorra

Thu 12/3

16:15-07:10

2 stops34h 55m

£657

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 11/5

09:20-19:00

1 stop14h 40m

Castries George F. L. Charle

Mon 18/5

15:45-09:20

1 stop12h 35m

£657

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 18/1

18:00-16:25

1 stop26h 25m

Castries Hewanorra

Wed 18/3

16:15-08:30

1 stop36h 15m

£658

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 21/1

09:00-16:25

2 stops35h 25m

Castries Hewanorra

Wed 28/1

17:15-06:30

1 stop33h 15m

£660

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 18/1

11:10-16:25

1 stop33h 15m

Castries Hewanorra

Wed 18/3

16:15-20:35

2 stops24h 20m

£661

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Saint Lucia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

What is the cheapest London Heathrow to Saint Lucia flight route?

Fly from London Heathrow to Castries Hewanorra for the best London Heathrow - Saint Lucia flight prices

What cabin class options are available on London Heathrow to Saint Lucia flights?

There is only 1 cabin class available to choose from on London Heathrow to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Saint Lucia flights?

You could potentially save up to 46% on your flight if you consider stops on a London Heathrow Airport to Saint Lucia flight.

Cheap London Heathrow Airport to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Saint Lucia

Fastest flight time	12h 45m
Direct flights	None

The fastest flight from London Heathrow Airport to Saint Lucia takes 12h 45m

There are no direct flights from London Heathrow Airport to Saint Lucia. There are no popular flight routes from London Heathrow Airport to Saint Lucia.

Search flight deals

When did momondo last update prices for flights from London Heathrow Airport to Saint Lucia?
Prices for flights from London Heathrow Airport to Saint Lucia are refreshed on a daily basis.
How many operators does momondo search for flights from London Heathrow Airport to Saint Lucia?
The number of operators available for flights from London Heathrow Airport to Saint Lucia is 5 as of January 2026.
How old do you have to be to fly from London Heathrow Airport to Saint Lucia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The travel and health documents you'll need for your trip to Saint Lucia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to Saint Lucia?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Saint Lucia is Airbus A350-1000, representing 27.27% of all bookings. The subsequent popular models are Boeing 767-400 at 27.27%, Airbus A330-300 at 18.18%, and Boeing 777 at 9.09%.

Best airlines flying from London Heathrow Airport to Saint Lucia

Compare and see reviews for airlines that fly from London Heathrow Airport to Saint Lucia with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom £371	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom £458	Free Cancellation	Rating 6.7 7,659 reviews	Search British Airways flights
Air Canada	PriceFrom £518	Free Cancellation	Rating 7.1 10,603 reviews	Search Air Canada flights
Finnair	PriceFrom £642	Free Cancellation	Rating 7.6 1,346 reviews	Search Finnair flights
KLM	PriceFrom £1,074	Free Cancellation	Rating 7.7 1,434 reviews	Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Saint Lucia?

Finding the right flight to Saint Lucia from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Lucia quick and easy, saving you time and money.

Can I find flights from London to Saint Lucia with flexible booking policies on momondo?

All flight searches from London to Saint Lucia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Saint Lucia?

momondo helps you find the best flight between London and Saint Lucia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Saint Lucia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Saint Lucia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Lucia and let you know when they change.

An easier way to manage your Saint Lucia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Popular Cities in Saint Lucia

Flights to Castriesfrom £591

Cheap flights from London Heathrow Airport to Saint Lucia from £416

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Big names, great deals

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Filter for what you want

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Find the cheapest flights from London Heathrow Airport to Saint Lucia

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Air Canada flights from London Heathrow Airport to Saint Lucia

Our best Air Canada deals on London Heathrow Airport to Saint Lucia flight tickets

American Airlines flights from London Heathrow Airport to Saint Lucia

Our best American Airlines deals on London Heathrow Airport to Saint Lucia flight tickets

momondo Fare Finder

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

See travel insights to Saint Lucia from

How to get the cheapest flight ticket from London Heathrow Airport to Saint Lucia

What is the cheapest London Heathrow to Saint Lucia flight route?

Fly from London Heathrow to Castries Hewanorra for the best London Heathrow - Saint Lucia flight prices

What cabin class options are available on London Heathrow to Saint Lucia flights?

There is only 1 cabin class available to choose from on London Heathrow to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Saint Lucia flights?

You could potentially save up to 46% on your flight if you consider stops on a London Heathrow Airport to Saint Lucia flight.

What is the cheapest airline that flies from London Heathrow to Saint Lucia?

JetBlue and WestJet are the most popular carriers operating from London Heathrow to Saint Lucia

Which airlines fly to Saint Lucia?

How often are flights from London to Saint Lucia delayed?

Historically, on average around 18% of flights between London and Saint Lucia have experienced a delay on any given week. The average delay length over the past 12 months has been 150 minutes.

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

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

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

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

Cheap London Heathrow Airport to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Saint Lucia

Fastest flight time

Direct flights

When did momondo last update prices for flights from London Heathrow Airport to Saint Lucia?

How many operators does momondo search for flights from London Heathrow Airport to Saint Lucia?

How old do you have to be to fly from London Heathrow Airport to Saint Lucia?

What documentation or ID do you need to fly to Saint Lucia?

What is the most popular plane model from London Heathrow Airport to Saint Lucia?

Best airlines flying from London Heathrow Airport to Saint Lucia

Compare and see reviews for airlines that fly from London Heathrow Airport to Saint Lucia with momondo

Why use momondo?

Why should I use momondo to find a flight deal from London to Saint Lucia?

Can I find flights from London to Saint Lucia with flexible booking policies on momondo?

How can momondo help me find flights from London to Saint Lucia?

I’m not ready to book a flight from London to Saint Lucia right now. Can momondo alert me if prices change?

An easier way to manage your Saint Lucia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Saint Lucia

Popular Cities in Saint Lucia

Popular flights according to clicks in the last 7 days on momondo