How long is the flight from United Kingdom to Saint Lucia?

On average, it takes 15h 55m to fly from United Kingdom to Saint Lucia if you fly out of London (the most popular airport in United Kingdom) and into Castries (the most popular airport in Saint Lucia). If you’re flying out of Birmingham and into Castries, then the flight time is around 26h 40m.

What is the cheapest airline that flies from United Kingdom to Saint Lucia?

JetBlue, WestJet, and KLM are the most popular carriers operating from United Kingdom to Saint Lucia

How many flights depart from United Kingdom to Saint Lucia on average per week?

6 flights are operational weekly from United Kingdom to Saint Lucia as of February 2026. The most popular departure day for this route is Wed, with 33% of flights per week taking off on this day.

Which airlines fly to Saint Lucia?

British Airways, Finnair and Air Canada are the top three most popular airlines that fly to Saint Lucia from United Kingdom according to our data. British Airways is the first choice among our users, with 88% 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 day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United Kingdom 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 9% of their flights experiencing any sort of delay.

What is the most punctual flight time for the United Kingdom 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.

When did momondo last update prices for flights from United Kingdom to Saint Lucia?

Prices for flights from United Kingdom to Saint Lucia refresh daily.

How many operators does momondo search for flights from United Kingdom to Saint Lucia?

There are 5 operators available for flights from United Kingdom to Saint Lucia as of February 2026.

How old do you have to be to fly from United Kingdom to Saint Lucia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United Kingdom to Saint Lucia.

What documentation or ID do you need to fly to Saint Lucia?

The required travel and health documents for your Saint Lucia 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 Saint Lucia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£289 Cheap Flights from the United Kingdom to Saint Lucia in 2026

Q: How often are flights from the United Kingdom to Saint Lucia delayed?

Historically, on average around 21% of flights between United Kingdom and Saint Lucia have experienced a delay on any given week. The average delay length over the past 12 months has been 120 minutes.

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Find the cheapest flights from the United Kingdom to Saint Lucia

Round-trip

One-way

Last minute

Direct

Recent return flight deals from the United Kingdom to Saint Lucia

Enter your travel dates to find the best prices.

11:15 - 15:05

LGW

UVF

8h 50mdirect

20:30 - 09:50

UVF

LGW

8h 20mdirect

£593British Airways

Tue, 2 Jun - Sat, 6 Jun

11:15 - 15:05

LGW

UVF

8h 50mdirect

20:30 - 09:50

UVF

LGW

8h 20mdirect

£610British Airways

Sat, 9 May - Sun, 17 May

11:15 - 15:05

LGW

UVF

8h 50mdirect

20:50 - 10:10

UVF

LGW

8h 20mdirect

£627British Airways

Tue, 12 May - Fri, 22 May

08:15 - 13:04

LHR

UVF

33h 49m

1 stop

14:24 - 20:45

UVF

LHR

25h 21m

1 stop

£656JetBlue

Mon, 1 Jun - Mon, 8 Jun

08:30 - 15:20

LHR

UVF

35h 50m

1 stop

16:15 - 21:00

UVF

LHR

23h 45m

2 stops

£662Air Canada

Tue, 31 Mar - Mon, 6 Apr

08:45 - 15:20

LHR

UVF

35h 35m

2 stops

15:15 - 06:30

UVF

LHR

34h 15m

2 stops

£665Air Canada

Tue, 21 Apr - Tue, 5 May

09:40 - 15:15

LHR

SLU

33h 35m

1 stop

16:20 - 09:55

SLU

LHR

13h 35m

1 stop

£689Multiple Airlines

Wed, 11 Mar - Mon, 16 Mar

09:40 - 15:15

LHR

SLU

33h 35m

1 stop

16:20 - 09:55

SLU

LHR

13h 35m

1 stop

£719Multiple Airlines

Wed, 11 Mar - Mon, 16 Mar

12:20 - 14:26

MAN

UVF

31h 06m

2 stops

14:45 - 19:05

UVF

MAN

23h 20m

2 stops

£805American Airlines

Tue, 28 Apr - Wed, 6 May

15:20 - 14:26

MAN

UVF

52h 06m

2 stops

15:13 - 21:45

UVF

MAN

49h 32m

2 stops

£850American Airlines

Tue, 7 Apr - Tue, 14 Apr

British Airways flights from United Kingdom to Saint Lucia

Our best British Airways deals on United Kingdom to Saint Lucia flight tickets

British Airways

2 Jun

LGW11:15London Gatwick

8h 50m

UVF15:05Castries Hewanorra

6 Jun

UVF20:30Castries Hewanorra

8h 20m

LGW09:50London Gatwick

£593

British Airways

9 May

LGW11:15London Gatwick

8h 50m

UVF15:05Castries Hewanorra

17 May

UVF20:30Castries Hewanorra

8h 20m

LGW09:50London Gatwick

£610

British Airways

12 May

LGW11:15London Gatwick

8h 50m

UVF15:05Castries Hewanorra

22 May

UVF20:50Castries Hewanorra

8h 20m

LGW10:10London Gatwick

£618

JetBlue flights from United Kingdom to Saint Lucia

Our best JetBlue deals on United Kingdom to Saint Lucia flight tickets

JetBlue

1 Jun

LHR08:15London Heathrow

33h 49m

1 stop

UVF13:04Castries Hewanorra

8 Jun

UVF14:24Castries Hewanorra

25h 21m

1 stop

LHR20:45London Heathrow

£656

JetBlue

1 Jun

LHR08:15London Heathrow

33h 49m

1 stop

UVF13:04Castries Hewanorra

8 Jun

UVF14:24Castries Hewanorra

25h 21m

1 stop

LHR20:45London Heathrow

£683

JetBlue

11 May

LHR08:15London Heathrow

35h 12m

1 stop

UVF14:27Castries Hewanorra

21 May

UVF14:24Castries Hewanorra

25h 21m

1 stop

LHR20:45London Heathrow

£698

momondo Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Saint Lucia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 2/6

11:15-15:05

Nonstop8h 50m

Castries Hewanorra

Sat 6/6

20:30-09:50

Nonstop8h 20m

£593

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sat 9/5

11:15-15:05

Nonstop8h 50m

Castries Hewanorra

Sun 17/5

20:30-09:50

Nonstop8h 20m

£610

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 12/5

11:15-15:05

Nonstop8h 50m

Castries Hewanorra

Fri 22/5

20:50-10:10

Nonstop8h 20m

£627

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 1/6

08:15-13:04

1 stop33h 49m

Castries Hewanorra

Mon 8/6

14:24-20:45

1 stop25h 21m

£656

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 31/3

08:30-15:20

1 stop35h 50m

Castries Hewanorra

Mon 6/4

16:15-21:00

2 stops23h 45m

£662

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 21/4

08:45-15:20

2 stops35h 35m

Castries Hewanorra

Tue 5/5

15:15-06:30

2 stops34h 15m

£665

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Wed 11/3

09:40-15:15

1 stop33h 35m

Castries George F. L. Charle

Mon 16/3

16:20-09:55

1 stop13h 35m

£689

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Wed 11/3

09:40-15:15

1 stop33h 35m

Castries George F. L. Charle

Mon 16/3

16:20-09:55

1 stop13h 35m

£719

ManchesterCastries

MAN - UVF

MANUVF

Manchester

Tue 28/4

12:20-14:26

2 stops31h 06m

Castries Hewanorra

Wed 6/5

14:45-19:05

2 stops23h 20m

£805

ManchesterCastries

MAN - UVF

MANUVF

Manchester

Tue 7/4

15:20-14:26

2 stops52h 06m

Castries Hewanorra

Tue 14/4

15:13-21:45

2 stops49h 32m

£850

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 United Kingdom 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

Other information

What is the cheapest United Kingdom to Saint Lucia flight route?

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

What cabin class options are available on United Kingdom to Saint Lucia flights?

There are 3 cabin classes available to choose from on United Kingdom to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap United Kingdom to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Saint Lucia

Best price found	£446
Fastest flight time	8h 50m
Direct flights	Every day
Airports in Saint Lucia	7 airports

The best one-way flight to Saint Lucia from United Kingdom in the past 72 hours is £446. The best return flight deal from United Kingdom to Saint Lucia found on momondo in the last 72 hours is £637.

The fastest flight from United Kingdom to Saint Lucia takes 8h 50m

Direct flights go from United Kingdom to Saint Lucia every day.

There are 7 airports in Saint Lucia. From United Kingdom there are direct flights to Castries Hewanorra (UVF).

Search flight deals

When did momondo last update prices for flights from United Kingdom to Saint Lucia?
Prices for flights from United Kingdom to Saint Lucia refresh daily.
How many operators does momondo search for flights from United Kingdom to Saint Lucia?
There are 5 operators available for flights from United Kingdom to Saint Lucia as of February 2026.
How old do you have to be to fly from United Kingdom to Saint Lucia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United Kingdom to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The required travel and health documents for your Saint Lucia 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 Saint Lucia. 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 United Kingdom to Saint Lucia?
momondo data reveals that the most frequently booked plane model on the route from United Kingdom to Saint Lucia is Boeing 777, representing 97.74% of all bookings. The subsequent popular models are Airbus A350-1000 at 0.42%, Airbus A330-300 at 0.42%, and Airbus A350-900 at 0.42%.

Best airlines flying from United Kingdom to Saint Lucia

Compare and see reviews for airlines that fly from United Kingdom to Saint Lucia with momondo

Airline	Rating	Free Cancellation	Price
TUI Airways	PriceFrom £281	Free Cancellation	Rating 0.0 0 reviews	Search TUI Airways flights
British Airways	PriceFrom £471	Free Cancellation	Rating 6.7 7,761 reviews	Search British Airways flights
Air Canada	PriceFrom £531	Free Cancellation	Rating 7.1 10,742 reviews	Search Air Canada flights
Finnair	PriceFrom £585	Free Cancellation	Rating 7.6 1,367 reviews	Search Finnair flights
KLM	PriceFrom £1,068	Free Cancellation	Rating 7.7 1,458 reviews	Search KLM flights

Why use momondo?

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

It is quick and easy to find United Kingdom to Saint Lucia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Saint Lucia that suits you.

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

Flights from United Kingdom to Saint Lucia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Saint Lucia from United Kingdom.

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

Yes. momondo can track prices for United Kingdom to Saint Lucia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Flights to Castriesfrom £665

Cheap flights from the United Kingdom to Saint Lucia from £326

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Saint Lucia departing on 19/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Recent return flight deals from the United Kingdom to Saint Lucia

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British Airways flights from United Kingdom to Saint Lucia

Our best British Airways deals on United Kingdom to Saint Lucia flight tickets

JetBlue flights from United Kingdom to Saint Lucia

Our best JetBlue deals on United Kingdom to Saint Lucia flight tickets

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Use the filters below to find and compare flights from the United Kingdom to Saint Lucia that are best for you.

See travel insights to Saint Lucia from

How to get the cheapest flight ticket from United Kingdom to Saint Lucia

What is the cheapest United Kingdom to Saint Lucia flight route?

What cabin class options are available on United Kingdom to Saint Lucia flights?

What is the cheapest airline that flies from United Kingdom to Saint Lucia?

Which airlines fly to Saint Lucia?

How often are flights from the United Kingdom to Saint Lucia delayed?

What is the most punctual flight time for the United Kingdom 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 the United Kingdom to Saint Lucia flights?

How many flights depart from United Kingdom to Saint Lucia on average per week?

How long is the flight from United Kingdom to Saint Lucia?

Cheap United Kingdom to Saint Lucia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Saint Lucia

Best price found

Fastest flight time

Direct flights

Airports in Saint Lucia

Best airlines flying from United Kingdom to Saint Lucia

Compare and see reviews for airlines that fly from United Kingdom to Saint Lucia with momondo

Why use momondo?

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

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

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

I’m not ready to book a flight from United Kingdom 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

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

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