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

Air Canada is the most popular carrier operating from London Heathrow to Saint Lucia

Which airlines fly to Saint Lucia?

British Airways, Air Canada and Finnair 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 50% of people opting to fly with this airline when travelling to Saint Lucia. Keep in mind that there are 6 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.

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 6 as of May 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.

£369 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

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

08:15 - 12:34

LHR

UVF

33h 19m

1 stop

16:33 - 20:45

UVF

LHR

23h 12m

1 stop

£618JetBlue

Mon, 22 Jun - Mon, 6 Jul

08:20 - 14:05

LHR

UVF

34h 45m

2 stops

15:33 - 11:10

UVF

LHR

38h 37m

2 stops

£742Delta

Tue, 2 Jun - Fri, 12 Jun

14:00 - 13:25

LHR

UVF

28h 25m

2 stops

14:20 - 11:30

UVF

LHR

17h 10m

1 stop

£744American Airlines

Sat, 17 Oct - Sun, 25 Oct

09:55 - 13:50

LHR

UVF

32h 55m

1 stop

14:20 - 12:35

UVF

LHR

17h 15m

1 stop

£748American Airlines

Thu, 1 Oct - Mon, 12 Oct

09:55 - 13:50

LHR

UVF

32h 55m

1 stop

16:00 - 19:45

UVF

LHR

22h 45m

2 stops

£751American Airlines

Thu, 1 Oct - Thu, 15 Oct

15:00 - 15:25

LHR

UVF

28h 25m

1 stop

17:25 - 06:30

UVF

LHR

33h 05m

2 stops

£752Air Canada

Sun, 25 Oct - Sun, 1 Nov

09:55 - 13:50

LHR

UVF

32h 55m

1 stop

14:20 - 12:10

UVF

LHR

16h 50m

2 stops

£756American Airlines

Thu, 1 Oct - Mon, 12 Oct

17:40 - 14:10

LHR

UVF

25h 30m

1 stop

15:15 - 11:50

UVF

LHR

15h 35m

1 stop

£760Air Canada

Mon, 15 Jun - Tue, 23 Jun

11:10 - 19:00

LHR

SLU

12h 50m

1 stop

12:35 - 06:15

SLU

LHR

12h 40m

1 stop

£783Multiple Airlines

Mon, 22 Jun - Mon, 6 Jul

11:10 - 12:05

LHR

SLU

29h 55m

1 stop

15:45 - 05:50

SLU

LHR

33h 05m

1 stop

£832Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

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

1 Jun

LHR17:40London Heathrow

25h 30m

1 stop

UVF14:10Castries Hewanorra

9 Jun

UVF15:05Castries Hewanorra

15h 45m

1 stop

LHR11:50London Heathrow

£735

Air Canada

25 Oct

LHR15:00London Heathrow

28h 25m

1 stop

UVF15:25Castries Hewanorra

1 Nov

UVF17:25Castries Hewanorra

33h 05m

2 stops

LHR06:30London Heathrow

£752

Air Canada

1 Jun

LHR14:05London Heathrow

29h 05m

2 stops

UVF14:10Castries Hewanorra

9 Jun

UVF15:05Castries Hewanorra

15h 45m

1 stop

LHR11:50London Heathrow

£760

Delta flights from London Heathrow Airport to Saint Lucia

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

Delta

1 Oct

LHR09:40London Heathrow

33h 28m

2 stops

UVF14:08Castries Hewanorra

5 Oct

UVF15:33Castries Hewanorra

16h 42m

1 stop

LHR13:15London Heathrow

£731

Delta

2 Jun

LHR09:20London Heathrow

33h 45m

1 stop

UVF14:05Castries Hewanorra

12 Jun

UVF15:33Castries Hewanorra

38h 37m

2 stops

LHR11:10London Heathrow

£742

Delta

15 Oct

LHR15:15London Heathrow

28h 11m

1 stop

UVF14:26Castries Hewanorra

22 Oct

UVF15:41Castries Hewanorra

16h 34m

1 stop

LHR13:15London Heathrow

£770

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

Cheapest return flight

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 22/6

08:15-12:34

1 stop33h 19m

Castries Hewanorra

Mon 6/7

16:33-20:45

1 stop23h 12m

£618

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 2/6

08:20-14:05

2 stops34h 45m

Castries Hewanorra

Fri 12/6

15:33-11:10

2 stops38h 37m

£742

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sat 17/10

14:00-13:25

2 stops28h 25m

Castries Hewanorra

Sun 25/10

14:20-11:30

1 stop17h 10m

£744

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 1/10

09:55-13:50

1 stop32h 55m

Castries Hewanorra

Mon 12/10

14:20-12:35

1 stop17h 15m

£748

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 1/10

09:55-13:50

1 stop32h 55m

Castries Hewanorra

Thu 15/10

16:00-19:45

2 stops22h 45m

£751

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 25/10

15:00-15:25

1 stop28h 25m

Castries Hewanorra

Sun 1/11

17:25-06:30

2 stops33h 05m

£752

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 1/10

09:55-13:50

1 stop32h 55m

Castries Hewanorra

Mon 12/10

14:20-12:10

2 stops16h 50m

£756

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 15/6

17:40-14:10

1 stop25h 30m

Castries Hewanorra

Tue 23/6

15:15-11:50

1 stop15h 35m

£760

Fastest return journey

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 22/6

11:10-19:00

1 stop12h 50m

Castries George F. L. Charle

Mon 6/7

12:35-06:15

1 stop12h 40m

£783

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Wed 1/7

11:10-12:05

1 stop29h 55m

Castries George F. L. Charle

Wed 8/7

15:45-05:50

1 stop33h 05m

£832

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

What is the cheapest month to fly to Saint Lucia?

The month of September is, on average, the cheapest month to fly to Saint Lucia from London Heathrow Airport, with most prices found around £493. If you don’t want to visit Saint Lucia in September, then you should wait until May to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £501.

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 50m
Direct flights	None

The fastest flight from London Heathrow Airport to Saint Lucia takes 12h 50m

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

Frequently asked questions about flying from London Heathrow Airport to Saint Lucia

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 6 as of May 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
British Airways	PriceFrom £501	Free Cancellation	Rating 6.7 7,991 reviews	Search British Airways flights
JetBlue	PriceFrom £534	Free Cancellation	Rating 7.2 2,981 reviews	Search JetBlue flights
Air Canada	PriceFrom £636	Free Cancellation	Rating 7.1 11,068 reviews	Search Air Canada flights
Finnair	PriceFrom £692	Free Cancellation	Rating 7.7 1,398 reviews	Search Finnair flights
American Airlines	PriceFrom £708	Free Cancellation	Rating 7.1 11,639 reviews	Search American Airlines flights
KLM	PriceFrom £1,159	Free Cancellation	Rating 7.8 1,518 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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Flights to Castriesfrom £908

Cheap flights from London Heathrow Airport to Saint Lucia from £480

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Find the cheapest flights from London Heathrow Airport to Saint Lucia

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Air Canada flights from London Heathrow Airport to Saint Lucia

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

Delta flights from London Heathrow Airport to Saint Lucia

Our best Delta 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 month to fly to Saint Lucia?

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

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

Which airlines fly to Saint Lucia?

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

Frequently asked questions about flying 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?

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

London Heathrow Airport flight routes

According to popular flight searches on momondo this year

Saint Lucia flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Saint Lucia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Saint Lucia

List of cabin classes available on flights landing in Saint Lucia. Availability may vary depending on flight origin and airline.

Complete your trip to Saint Lucia

Explore popular destinations other users love

According to popular flight searches on momondo this year