Which airlines fly to Saint Lucia?

British Airways, Virgin Atlantic 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 37% 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 is the cheapest airline that flies from London Heathrow to Saint Lucia?

JetBlue, WestJet, and Air Canada are the most popular carriers operating from London Heathrow 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 5 as of November 2025.

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.

£358 Cheap Flights from London Heathrow Airport to Saint Lucia in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

09:20 - 15:15LHR-UVF

33h 55m2 stops

16:50 - 06:55UVF-LHR

34h 05m2 stops

£600Icelandair

Find Deal

Mon, 12 Jan - Fri, 23 Jan

12:20 - 16:00LHR-UVF

31h 40m1 stop

17:23 - 20:45UVF-LHR

23h 22m1 stop

£606JetBlue

Find Deal

Thu, 26 Feb - Thu, 5 Mar

13:45 - 16:25LHR-UVF

54h 40m2 stops

17:15 - 11:20UVF-LHR

14h 05m1 stop

£624Air Canada

Find Deal

Wed, 3 Dec - Wed, 10 Dec

14:50 - 16:25LHR-UVF

53h 35m2 stops

17:15 - 06:30UVF-LHR

33h 15m1 stop

£643Air Canada

Find Deal

Wed, 21 Jan - Wed, 4 Feb

06:00 - 16:20LHR-UVF

38h 20m2 stops

17:15 - 06:30UVF-LHR

33h 15m1 stop

£644Multiple Airlines

Find Deal

Tue, 13 Jan - Wed, 28 Jan

06:00 - 16:20LHR-UVF

38h 20m2 stops

17:15 - 15:50UVF-LHR

42h 35m2 stops

£648Multiple Airlines

Find Deal

Tue, 13 Jan - Wed, 28 Jan

15:50 - 15:30LHR-UVF

27h 40m1 stop

16:25 - 20:10UVF-LHR

23h 45m2 stops

£708Delta

Find Deal

Wed, 31 Dec - Thu, 15 Jan

12:30 - 15:30LHR-UVF

31h 00m1 stop

16:25 - 20:10UVF-LHR

23h 45m2 stops

£710Delta

Find Deal

Wed, 31 Dec - Thu, 15 Jan

09:55 - 15:00LHR-UVF

33h 05m1 stop

14:23 - 12:05UVF-LHR

17h 42m1 stop

£713American Airlines

Find Deal

Thu, 4 Dec - Mon, 15 Dec

19:05 - 15:03LHR-UVF

23h 58m2 stops

14:07 - 09:40UVF-LHR

15h 33m1 stop

£716American Airlines

Find Deal

Mon, 9 Feb - Sat, 7 Mar

Icelandair flights from London Heathrow Airport to Saint Lucia

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

Icelandair

12 Jan

LHR09:20London Heathrow

33h 55m

2 stops

UVF15:15Castries Hewanorra

23 Jan

UVF16:50Castries Hewanorra

34h 05m

2 stops

LHR06:55London Heathrow

£600

Find similar

Icelandair

6 Jan

LHR07:25London Heathrow

35h 50m

1 stop

UVF15:15Castries Hewanorra

26 Jan

UVF16:40Castries Hewanorra

25h 00m

1 stop

LHR21:40London Heathrow

£617

Find similar

Icelandair

6 Jan

LHR09:20London Heathrow

33h 55m

2 stops

UVF15:15Castries Hewanorra

26 Jan

UVF16:40Castries Hewanorra

25h 00m

1 stop

LHR21:40London Heathrow

£639

Find similar

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

3 Dec

LHR13:45London Heathrow

54h 40m

2 stops

UVF16:25Castries Hewanorra

10 Dec

UVF17:15Castries Hewanorra

14h 05m

1 stop

LHR11:20London Heathrow

£624

Find similar

Air Canada

21 Jan

LHR14:50London Heathrow

53h 35m

2 stops

UVF16:25Castries Hewanorra

4 Feb

UVF17:15Castries Hewanorra

33h 15m

1 stop

LHR06:30London Heathrow

£643

Find similar

Air Canada

22 Nov

LHR13:45London Heathrow

54h 40m

2 stops

UVF16:25Castries Hewanorra

8 Dec

UVF17:15Castries Hewanorra

35h 15m

1 stop

LHR08:30London Heathrow

£645

Find similar

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

Mon 12/1

09:20-15:15

2 stops33h 55m

Castries Hewanorra

Fri 23/1

16:50-06:55

2 stops34h 05m

£600

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 26/2

12:20-16:00

1 stop31h 40m

Castries Hewanorra

Thu 5/3

17:23-20:45

1 stop23h 22m

£606

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 3/12

13:45-16:25

2 stops54h 40m

Castries Hewanorra

Wed 10/12

17:15-11:20

1 stop14h 05m

£624

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 21/1

14:50-16:25

2 stops53h 35m

Castries Hewanorra

Wed 4/2

17:15-06:30

1 stop33h 15m

£643

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 13/1

06:00-16:20

2 stops38h 20m

Castries Hewanorra

Wed 28/1

17:15-06:30

1 stop33h 15m

£644

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 13/1

06:00-16:20

2 stops38h 20m

Castries Hewanorra

Wed 28/1

17:15-15:50

2 stops42h 35m

£648

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 31/12

15:50-15:30

1 stop27h 40m

Castries Hewanorra

Thu 15/1

16:25-20:10

2 stops23h 45m

£708

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 31/12

12:30-15:30

1 stop31h 00m

Castries Hewanorra

Thu 15/1

16:25-20:10

2 stops23h 45m

£710

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 4/12

09:55-15:00

1 stop33h 05m

Castries Hewanorra

Mon 15/12

14:23-12:05

1 stop17h 42m

£713

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 9/2

19:05-15:03

2 stops23h 58m

Castries Hewanorra

Sat 7/3

14:07-09:40

1 stop15h 33m

£716

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 day to depart on your flight to Saint Lucia?

The cheapest day to depart on your flight to Saint Lucia is on a Tuesday when prices can be found for as low as £525. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £685.

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 40% 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

Direct flights	None

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 November 2025.
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 25.00% of all bookings. The subsequent popular models are Boeing 767-400 at 25.00%, Boeing 787-9 Dreamliner at 16.67%, and Airbus A330-300 at 16.67%.

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 £393	Free Cancellation	Rating 7.5 672 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom £436	Free Cancellation	Rating 6.7 7,500 reviews	Search British Airways flights
Air Canada	PriceFrom £531	Free Cancellation	Rating 7.1 10,416 reviews	Search Air Canada flights
Finnair	PriceFrom £659	Free Cancellation	Rating 7.6 1,335 reviews	Search Finnair flights
KLM	PriceFrom £699	Free Cancellation	Rating 7.7 1,408 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sun 7/12

Sun 14/12

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Saint Lucia

Popular Cities in Saint Lucia

Flights to Castriesfrom £663

Cheap flights from London Heathrow Airport to Saint Lucia from £358

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London Heathrow Airport to Saint Lucia

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Icelandair flights from London Heathrow Airport to Saint Lucia

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

Air Canada flights from London Heathrow Airport to Saint Lucia

Our best Air Canada 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

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

What is the cheapest day to depart on your flight 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 40% 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, WestJet, and Air Canada are the most popular carriers operating 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

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