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 7% of their flights experiencing any sort of delay.

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

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. Sunday 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 7% 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 115 minutes.

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 46% 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 March 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.

£335 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.

16:20 - 13:58

LHR

UVF

26h 38m

2 stops

15:22 - 08:50

UVF

LHR

36h 28m

2 stops

£743Delta

Thu, 9 Apr - Fri, 17 Apr

09:40 - 14:02

LHR

UVF

33h 22m

2 stops

15:22 - 20:10

UVF

LHR

23h 48m

2 stops

£746Delta

Thu, 23 Apr - Thu, 30 Apr

09:20 - 14:02

LHR

UVF

33h 42m

1 stop

15:22 - 06:25

UVF

LHR

34h 03m

1 stop

£746Delta

Thu, 23 Apr - Sun, 3 May

16:55 - 14:26

LHR

UVF

26h 31m

1 stop

14:45 - 07:20

UVF

LHR

35h 35m

2 stops

£749British Airways

Fri, 24 Apr - Fri, 1 May

09:15 - 14:26

LHR

UVF

34h 11m

1 stop

14:45 - 06:25

UVF

LHR

34h 40m

2 stops

£750British Airways

Thu, 23 Apr - Thu, 30 Apr

08:15 - 14:37

LHR

UVF

35h 22m

1 stop

15:57 - 20:45

UVF

LHR

23h 48m

1 stop

£758JetBlue

Thu, 23 Apr - Thu, 30 Apr

17:40 - 14:20

LHR

UVF

25h 40m

1 stop

15:15 - 11:50

UVF

LHR

15h 35m

1 stop

£763Air Canada

Thu, 20 Aug - Fri, 11 Sep

14:10 - 15:20

LHR

UVF

30h 10m

1 stop

16:05 - 09:35

UVF

LHR

36h 30m

1 stop

£766Air Canada

Thu, 9 Apr - Sun, 12 Apr

09:35 - 18:25

LHR

SLU

13h 50m

1 stop

15:45 - 09:20

SLU

LHR

12h 35m

1 stop

£786Multiple Airlines

Mon, 14 Sep - Wed, 23 Sep

10:45 - 19:00

LHR

SLU

13h 15m

1 stop

12:35 - 06:15

SLU

LHR

12h 40m

1 stop

£806Multiple Airlines

Thu, 20 Aug - Fri, 11 Sep

Delta flights from London Heathrow Airport to Saint Lucia

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

Delta

9 Apr

LHR11:45London Heathrow

31h 13m

2 stops

UVF13:58Castries Hewanorra

16 Apr

UVF15:22Castries Hewanorra

37h 58m

2 stops

LHR10:20London Heathrow

£743

Delta

6 Apr

LHR18:35London Heathrow

48h 23m

2 stops

UVF13:58Castries Hewanorra

14 Apr

UVF15:22Castries Hewanorra

34h 48m

2 stops

LHR07:10London Heathrow

£745

Delta

23 Apr

LHR09:40London Heathrow

33h 22m

2 stops

UVF14:02Castries Hewanorra

30 Apr

UVF15:22Castries Hewanorra

23h 48m

2 stops

LHR20:10London Heathrow

£746

British Airways flights from London Heathrow Airport to Saint Lucia

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

British Airways

24 Apr

LHR16:55London Heathrow

26h 31m

1 stop

UVF14:26Castries Hewanorra

1 May

UVF14:45Castries Hewanorra

35h 35m

2 stops

LHR07:20London Heathrow

£749

British Airways

23 Apr

LHR09:15London Heathrow

34h 11m

1 stop

UVF14:26Castries Hewanorra

30 Apr

UVF14:45Castries Hewanorra

34h 40m

2 stops

LHR06:25London Heathrow

£750

British Airways

10 Apr

LHR09:15London Heathrow

32h 54m

1 stop

UVF13:09Castries Hewanorra

17 Apr

UVF15:28Castries Hewanorra

36h 37m

1 stop

LHR09:05London Heathrow

£802

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 9/4

16:20-13:58

2 stops26h 38m

Castries Hewanorra

Fri 17/4

15:22-08:50

2 stops36h 28m

£743

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 23/4

09:40-14:02

2 stops33h 22m

Castries Hewanorra

Thu 30/4

15:22-20:10

2 stops23h 48m

£746

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 23/4

09:20-14:02

1 stop33h 42m

Castries Hewanorra

Sun 3/5

15:22-06:25

1 stop34h 03m

£746

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Fri 24/4

16:55-14:26

1 stop26h 31m

Castries Hewanorra

Fri 1/5

14:45-07:20

2 stops35h 35m

£749

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 23/4

09:15-14:26

1 stop34h 11m

Castries Hewanorra

Thu 30/4

14:45-06:25

2 stops34h 40m

£750

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 23/4

08:15-14:37

1 stop35h 22m

Castries Hewanorra

Thu 30/4

15:57-20:45

1 stop23h 48m

£758

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 20/8

17:40-14:20

1 stop25h 40m

Castries Hewanorra

Fri 11/9

15:15-11:50

1 stop15h 35m

£763

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 9/4

14:10-15:20

1 stop30h 10m

Castries Hewanorra

Sun 12/4

16:05-09:35

1 stop36h 30m

£766

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 14/9

09:35-18:25

1 stop13h 50m

Castries George F. L. Charle

Wed 23/9

15:45-09:20

1 stop12h 35m

£786

Fastest return journey

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Thu 20/8

10:45-19:00

1 stop13h 15m

Castries George F. L. Charle

Fri 11/9

12:35-06:15

1 stop12h 40m

£806

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 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

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 March 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 £511	Free Cancellation	Rating 6.7 7,838 reviews	Search British Airways flights
Air Canada	PriceFrom £541	Free Cancellation	Rating 7.1 10,866 reviews	Search Air Canada flights
JetBlue	PriceFrom £542	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
Finnair	PriceFrom £703	Free Cancellation	Rating 7.7 1,376 reviews	Search Finnair flights
American Airlines	PriceFrom £719	Free Cancellation	Rating 7.1 11,539 reviews	Search American Airlines flights
KLM	PriceFrom £1,177	Free Cancellation	Rating 7.8 1,480 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 £786

Cheap flights from London Heathrow Airport to Saint Lucia from £405

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Delta flights from London Heathrow Airport to Saint Lucia

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

British Airways flights from London Heathrow Airport to Saint Lucia

Our best British Airways 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?

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

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?

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?

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

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

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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

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According to popular flight searches on momondo this year