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

JetBlue 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 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.

£414 Cheap Flights from Saint Lucia to London Heathrow Airport in 2026

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Find the cheapest flights from Saint Lucia to London

Round-trip

One-way

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Recent return flight deals from Saint Lucia to London

Enter your travel dates to find the best prices.

16:20 - 06:30

UVF

LHR

33h 10m

2 stops

08:40 - 15:25

LHR

UVF

35h 45m

2 stops

£725Air Canada

Wed, 22 Apr - Wed, 29 Apr

16:20 - 06:35

UVF

LHR

33h 15m

1 stop

08:40 - 15:25

LHR

UVF

35h 45m

2 stops

£732Air Canada

Wed, 22 Apr - Wed, 29 Apr

16:20 - 09:35

UVF

LHR

36h 15m

1 stop

12:05 - 15:25

LHR

UVF

32h 20m

1 stop

£745Air Canada

Wed, 22 Apr - Wed, 29 Apr

16:05 - 06:30

UVF

LHR

33h 25m

2 stops

14:10 - 14:05

LHR

UVF

52h 55m

2 stops

£778Air Canada

Sun, 12 Apr - Wed, 13 May

16:05 - 09:35

UVF

LHR

36h 30m

1 stop

14:10 - 14:05

LHR

UVF

52h 55m

2 stops

£781Air Canada

Sun, 12 Apr - Wed, 13 May

16:15 - 09:35

UVF

LHR

36h 20m

1 stop

08:40 - 15:20

LHR

UVF

59h 40m

2 stops

£782Air Canada

Mon, 20 Apr - Mon, 27 Apr

16:20 - 09:35

UVF

LHR

36h 15m

1 stop

17:40 - 15:25

LHR

UVF

26h 45m

1 stop

£786Air Canada

Wed, 8 Apr - Wed, 15 Apr

16:15 - 21:00

UVF

LHR

23h 45m

2 stops

08:40 - 14:05

LHR

UVF

34h 25m

2 stops

£787Air Canada

Fri, 10 Apr - Mon, 11 May

17:50 - 08:05

SLU

LHR

33h 15m

3 stops

13:25 - 14:35

LHR

SLU

30h 10m

3 stops

£903Multiple Airlines

Sat, 2 May - Sat, 9 May

19:10 - 20:10

SLU

LHR

20h 00m

2 stops

22:15 - 09:30

LHR

SLU

40h 15m

3 stops

£1,012Multiple Airlines

Mon, 20 Apr - Mon, 27 Apr

JetBlue flights from Saint Lucia to London Heathrow Airport

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

JetBlue

5 May

UVF15:57Castries Hewanorra

23h 48m

1 stop

LHR20:45London Heathrow

12 May

LHR08:40London Heathrow

34h 47m

2 stops

UVF14:27Castries Hewanorra

£993

JetBlue

23 Apr

UVF15:57Castries Hewanorra

36h 33m

1 stop

LHR09:30London Heathrow

6 May

LHR08:40London Heathrow

34h 47m

2 stops

UVF14:27Castries Hewanorra

£1,112

JetBlue

1 May

UVF15:57Castries Hewanorra

23h 48m

1 stop

LHR20:45London Heathrow

30 Sept

LHR08:40London Heathrow

58h 35m

2 stops

UVF14:15Castries Hewanorra

£1,173

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

22 Apr

UVF16:20Castries Hewanorra

33h 10m

2 stops

LHR06:30London Heathrow

29 Apr

LHR08:40London Heathrow

35h 45m

2 stops

UVF15:25Castries Hewanorra

£725

Air Canada

22 Apr

UVF16:20Castries Hewanorra

33h 15m

1 stop

LHR06:35London Heathrow

29 Apr

LHR08:40London Heathrow

35h 45m

2 stops

UVF15:25Castries Hewanorra

£732

Air Canada

22 Apr

UVF16:20Castries Hewanorra

36h 15m

1 stop

LHR09:35London Heathrow

29 Apr

LHR12:05London Heathrow

32h 20m

1 stop

UVF15:25Castries Hewanorra

£745

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

Cheapest return flight

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 22/4

16:20-06:30

2 stops33h 10m

London Heathrow

Wed 29/4

08:40-15:25

2 stops35h 45m

£725

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 22/4

16:20-06:35

1 stop33h 15m

London Heathrow

Wed 29/4

08:40-15:25

2 stops35h 45m

£732

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 22/4

16:20-09:35

1 stop36h 15m

London Heathrow

Wed 29/4

12:05-15:25

1 stop32h 20m

£745

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 12/4

16:05-06:30

2 stops33h 25m

London Heathrow

Wed 13/5

14:10-14:05

2 stops52h 55m

£778

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 12/4

16:05-09:35

1 stop36h 30m

London Heathrow

Wed 13/5

14:10-14:05

2 stops52h 55m

£781

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Mon 20/4

16:15-09:35

1 stop36h 20m

London Heathrow

Mon 27/4

08:40-15:20

2 stops59h 40m

£782

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 8/4

16:20-09:35

1 stop36h 15m

London Heathrow

Wed 15/4

17:40-15:25

1 stop26h 45m

£786

Fastest return journey

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 10/4

16:15-21:00

2 stops23h 45m

London Heathrow

Mon 11/5

08:40-14:05

2 stops34h 25m

£787

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sat 2/5

17:50-08:05

3 stops33h 15m

London Heathrow

Sat 9/5

13:25-14:35

3 stops30h 10m

£903

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Mon 20/4

19:10-20:10

2 stops20h 00m

London Heathrow

Mon 27/4

22:15-09:30

3 stops40h 15m

£1,012

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 is only 1 cabin class 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 14% 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

Fastest flight time	12h 00m
Direct flights	None

The fastest flight from Saint Lucia to London Heathrow Airport takes 12h 00m

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

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 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%.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Northampton

Stratford-upon-Avon

Swindon

Southend-on-Sea

Ipswich

Canterbury

Ilford

Wembley

Poole

Guildford

Chelmsford

Hayes

Dover

Folkestone

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.