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

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

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

Prices for flights from Saint Lucia to London Heathrow Airport were last updated today.

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

As of August 2025, there is 1 operator available to choose from for flights from Saint Lucia to London Heathrow Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Saint Lucia to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£370 Cheap Flights from Saint Lucia to London Heathrow Airport in 2025

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 Saint Lucia to London

Round-trip

One-way

Last minute

Recent return flight deals from Saint Lucia to London

17:31 - 20:45UVF-LHR

22h 14m1 stop

08:15 - 14:15LHR-UVF

35h 00m1 stop

£741JetBlue

Find Deal

Tue, 12 Aug - Tue, 16 Sep

16:35 - 09:05SLU-LHR

35h 30m3 stops

07:40 - 13:10LHR-SLU

34h 30m3 stops

£820

Find Deal

Mon, 22 Sep - Fri, 26 Sep

15:10 - 11:50UVF-LHR

15h 40m1 stop

19:30 - 14:15LHR-UVF

47h 45m2 stops

£821Air Canada

Find Deal

Fri, 5 Sep - Sun, 19 Oct

16:54 - 20:45UVF-LHR

23h 51m1 stop

12:20 - 15:34LHR-UVF

31h 14m1 stop

£836JetBlue

Find Deal

Sun, 25 Jan - Mon, 2 Feb

15:20 - 20:45UVF-LHR

24h 25m1 stop

11:55 - 14:00LHR-UVF

31h 05m1 stop

£855JetBlue

Find Deal

Mon, 15 Sep - Wed, 15 Oct

15:10 - 21:00UVF-LHR

24h 50m2 stops

19:30 - 14:15LHR-UVF

47h 45m2 stops

£872Air Canada

Find Deal

Fri, 5 Sep - Sun, 19 Oct

15:20 - 20:45UVF-LHR

24h 25m1 stop

08:25 - 14:15LHR-UVF

58h 50m2 stops

£941Icelandair

Find Deal

Wed, 10 Sep - Tue, 30 Sep

15:35 - 11:30UVF-LHR

15h 55m1 stop

17:00 - 14:30LHR-UVF

25h 30m2 stops

£978American Airlines

Find Deal

Sun, 25 Jan - Mon, 2 Feb

15:35 - 12:05UVF-LHR

16h 30m1 stop

17:00 - 14:30LHR-UVF

25h 30m2 stops

£980American Airlines

Find Deal

Sun, 25 Jan - Mon, 2 Feb

15:20 - 06:30UVF-LHR

34h 10m2 stops

08:25 - 14:15LHR-UVF

58h 50m2 stops

£990Icelandair

Find Deal

Wed, 10 Sep - Tue, 30 Sep

JetBlue flights from Saint Lucia to London Heathrow Airport

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

JetBlue

12 Aug

UVF17:31Castries Hewanorra

22h 14m

1 stop

LHR20:45London Heathrow

16 Sept

LHR08:15London Heathrow

35h 00m

1 stop

UVF14:15Castries Hewanorra

£741

Find similar

JetBlue

25 Jan

UVF16:54Castries Hewanorra

23h 51m

1 stop

LHR20:45London Heathrow

2 Feb

LHR12:20London Heathrow

31h 14m

1 stop

UVF15:34Castries Hewanorra

£836

Find similar

JetBlue

15 Sept

UVF15:20Castries Hewanorra

24h 25m

1 stop

LHR20:45London Heathrow

15 Oct

LHR11:55London Heathrow

31h 05m

1 stop

UVF14:00Castries Hewanorra

£855

Find similar

Air Canada flights from Saint Lucia to London Heathrow Airport

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

Air Canada

5 Sept

UVF15:10Castries Hewanorra

15h 40m

1 stop

LHR11:50London Heathrow

19 Oct

LHR19:30London Heathrow

47h 45m

2 stops

UVF14:15Castries Hewanorra

£821

Find similar

Air Canada

5 Sept

UVF15:10Castries Hewanorra

24h 50m

2 stops

LHR21:00London Heathrow

19 Oct

LHR19:30London Heathrow

47h 45m

2 stops

UVF14:15Castries Hewanorra

£872

Find similar

Air Canada

5 Sept

UVF15:10Castries Hewanorra

34h 25m

1 stop

LHR06:35London Heathrow

5 Oct

LHR15:10London Heathrow

52h 05m

2 stops

UVF14:15Castries Hewanorra

£994

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Tue 12/8

17:31-20:45

1 stop22h 14m

London Heathrow

Tue 16/9

08:15-14:15

1 stop35h 00m

£741

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Mon 22/9

16:35-09:05

3 stops35h 30m

London Heathrow

Fri 26/9

07:40-13:10

3 stops34h 30m

£820

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 5/9

15:10-11:50

1 stop15h 40m

London Heathrow

Sun 19/10

19:30-14:15

2 stops47h 45m

£821

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 25/1

16:54-20:45

1 stop23h 51m

London Heathrow

Mon 2/2

12:20-15:34

1 stop31h 14m

£836

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Mon 15/9

15:20-20:45

1 stop24h 25m

London Heathrow

Wed 15/10

11:55-14:00

1 stop31h 05m

£855

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 5/9

15:10-21:00

2 stops24h 50m

London Heathrow

Sun 19/10

19:30-14:15

2 stops47h 45m

£872

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 10/9

15:20-20:45

1 stop24h 25m

London Heathrow

Tue 30/9

08:25-14:15

2 stops58h 50m

£941

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 25/1

15:35-11:30

1 stop15h 55m

London Heathrow

Mon 2/2

17:00-14:30

2 stops25h 30m

£978

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 25/1

15:35-12:05

1 stop16h 30m

London Heathrow

Mon 2/2

17:00-14:30

2 stops25h 30m

£980

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 10/9

15:20-06:30

2 stops34h 10m

London Heathrow

Tue 30/9

08:25-14:15

2 stops58h 50m

£990

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 Saint Lucia to London Heathrow Airport

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 Saint Lucia to London Heathrow flight route?

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

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

There are 1 cabin classes available to choose from on Saint Lucia to London Heathrow 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 Saint Lucia to London Heathrow Airport flights?

You could potentially save up to 6% on your flight if you consider stops on a Saint Lucia to London Heathrow Airport flight.

Cheap Saint Lucia to London Heathrow Airport flight deals and tips

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

Best price found	£370
Fastest flight time	10h 55m
Direct flights	Fri

The best one-way flight to London Heathrow Airport from Saint Lucia in the past 72 hours is £370. The best return flight deal from Saint Lucia to London Heathrow Airport found on momondo in the last 72 hours is £741.

The fastest flight from Saint Lucia to London Heathrow Airport takes 10h 55m

Direct flights go from Saint Lucia to London Heathrow Airport on Friday. Airline offering direct flights is Virgin Atlantic..

Search flight deals

When did momondo last update prices for flights from Saint Lucia to London Heathrow Airport?
Prices for flights from Saint Lucia to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Saint Lucia to London Heathrow Airport?
As of August 2025, there is 1 operator available to choose from for flights from Saint Lucia to London Heathrow Airport.
How old do you have to be to fly from Saint Lucia to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Saint Lucia to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Saint Lucia to London Heathrow Airport?
Based on momondo bookings for flights between Saint Lucia and London Heathrow Airport, the leading plane model is Boeing 777, making up 33.33% of the total bookings. Other popular models include Airbus A330-300 with 33.33% and Airbus A330-900neo with 33.33%.

Best airlines flying from Saint Lucia to London Heathrow Airport

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

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom £581	Free Cancellation	Rating 7.4 655 reviews		Search Virgin Atlantic flights

Eastbourne

Milton Keynes

Luton

Slough

Northampton

Southend-on-Sea

Maidstone

Swindon

Canterbury

Gatwick

Stratford-upon-Avon

Ipswich

Ilford

Dartford

Guildford

Colchester

Worthing

Hounslow

Swanage

Salisbury

Why use momondo?

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

Finding the right flight to London from Saint Lucia 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 London quick and easy, saving you time and money.

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

Yes. All flights to London from Saint Lucia on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Saint Lucia to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Saint Lucia and alert you when they change.

An easier way to manage your London Heathrow Airport 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

Wed 6/8

Wed 13/8

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 London

Popular Cities in the United Kingdom

Flights to London Gatwick Airportfrom £45

Flights to London City Airportfrom £135

Flights to London Stansted Airportfrom £30

Flights to London Luton Airportfrom £31

Flights to London Southend Airportfrom £125

Flights to Belfast Intl Airportfrom £29

Flights to Glasgow Intl Airportfrom £31

Flights to Belfast City Airportfrom £31

Flights to Glasgow Prestwick Airportfrom £111

Flights to Lerwick Sumburgh Airport

Cheap flights from Saint Lucia to London from £370

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Saint Lucia to London departing on 5/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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 Saint Lucia to London

Recent return flight deals from Saint Lucia to London

Recent one-way flight deals from Saint Lucia to London

Recent last minute flight deals from Saint Lucia to London

JetBlue flights from Saint Lucia to London Heathrow Airport

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

Air Canada flights from Saint Lucia to London Heathrow Airport

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

momondo Fare Finder

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

See travel insights to London from

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

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 Saint Lucia to London Heathrow flight route?

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

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

There are 1 cabin classes available to choose from on Saint Lucia to London Heathrow 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 Saint Lucia to London Heathrow Airport flights?

You could potentially save up to 6% on your flight if you consider stops on a Saint Lucia to London Heathrow Airport flight.

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

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

Cheap Saint Lucia to London Heathrow Airport flight deals and tips

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

Best price found

Fastest flight time

Direct flights

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

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

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

What documentation or ID do you need to fly to London Heathrow Airport?

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

Best airlines flying from Saint Lucia to London Heathrow Airport

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

Travelling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London Heathrow Airport 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 London

Popular Cities in the United Kingdom

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