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

On average, it takes 22h 24m to fly from United Kingdom to Saint Lucia if you fly out of London Heathrow (the most popular airport in United Kingdom) and into Castries Hewanorra (the most popular airport in Saint Lucia). If you’re flying out of Manchester and into Castries Hewanorra, then the flight time is around 29h 10m.

£366 Cheap Flights 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

Recent flights found to popular cities in Saint Lucia

Find flights to these popular cities in Saint Lucia from your nearest airport.

Flights to Castries

Search all flight deals to Castries

Multiple Airlines

9 Mar

LHR

13h 20m

1 stop

SLU

15 Mar

SLU

14h 10m

1 stop

LHR

£710

Find similar

Multiple Airlines

16 May

LHR

11h 55m

1 stop

SLU

23 May

SLU

15h 15m

1 stop

LHR

£719

Find similar

Multiple Airlines

12 Jan

LHR

11h 50m

1 stop

SLU

19 Jan

SLU

14h 10m

1 stop

LHR

£719

Find similar

Multiple Airlines

23 Feb

LHR

13h 20m

1 stop

SLU

16 Mar

SLU

13h 50m

1 stop

LHR

£725

Find similar

Multiple Airlines

2 Mar

LHR

33h 40m

1 stop

SLU

9 Mar

SLU

14h 10m

1 stop

LHR

£736

Find similar

Multiple Airlines

18 Mar

LHR

15h 00m

1 stop

SLU

22 Jun

SLU

15h 15m

1 stop

LHR

£741

Find similar

Multiple Airlines

13 Mar

LHR

13h 20m

1 stop

SLU

25 Mar

SLU

12h 50m

1 stop

LHR

£742

Find similar

Multiple Airlines

18 Mar

LHR

33h 35m

1 stop

SLU

15 Apr

SLU

15h 15m

1 stop

LHR

£745

Find similar

Multiple Airlines

25 Feb

LHR

29h 50m

1 stop

SLU

11 Mar

SLU

13h 15m

1 stop

LHR

£748

Find similar

Multiple Airlines

4 May

LHR

11h 55m

1 stop

SLU

19 May

SLU

15h 15m

1 stop

LHR

£752

Find similar

Multiple Airlines

5 Mar

LHR

33h 40m

1 stop

SLU

17 Mar

SLU

14h 10m

1 stop

LHR

£754

Find similar

Multiple Airlines

21 Jan

LHR

26h 40m

1 stop

SLU

4 Feb

SLU

12h 45m

1 stop

LHR

£755

Find similar

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.

06:00 - 16:25

MAN

UVF

38h 25m2 stops

17:15 - 17:00

UVF

MAN

43h 45m2 stops

£653Multiple Airlines

Thu, 29 Jan - Thu, 5 Feb

06:00 - 16:25

MAN

UVF

38h 25m2 stops

17:15 - 17:00

UVF

MAN

43h 45m2 stops

£654Multiple Airlines

Wed, 28 Jan - Wed, 4 Feb

13:25 - 16:25

BHX

UVF

31h 00m2 stops

17:15 - 12:35

UVF

BHX

39h 20m2 stops

£679Air Canada

Thu, 29 Jan - Thu, 5 Feb

11:15 - 15:05

LGW

UVF

8h 50mdirect

20:30 - 09:50

UVF

LGW

8h 20mdirect

£687British Airways

Sat, 18 Apr - Sat, 25 Apr

13:00 - 16:20

LHR

UVF

31h 20m1 stop

17:15 - 09:20

UVF

LHR

36h 05m2 stops

£690Air Canada

Tue, 20 Jan - Thu, 29 Jan

07:25 - 15:15

LHR

UVF

35h 50m1 stop

17:23 - 21:40

UVF

LHR

24h 17m1 stop

£693JetBlue

Thu, 5 Feb - Tue, 24 Feb

11:15 - 15:05

LGW

UVF

8h 50mdirect

22:05 - 11:25

UVF

LGW

8h 20mdirect

£694British Airways

Mon, 11 May - Thu, 21 May

08:05 - 15:43

LHR

UVF

35h 38m1 stop

17:21 - 09:30

UVF

LHR

36h 09m1 stop

£710JetBlue

Mon, 19 Jan - Mon, 2 Feb

13:45 - 15:05

LCY

UVF

29h 20m2 stops

16:25 - 17:20

UVF

LCY

20h 55m2 stops

£1,199KLM

Sun, 8 Feb - Sun, 22 Feb

13:45 - 15:05

LCY

UVF

29h 20m2 stops

16:25 - 16:35

UVF

LCY

20h 10m2 stops

£1,208KLM

Sun, 15 Feb - Sun, 22 Feb

Fly from

Route

Depart

Return

Price

ManchesterCastries

MAN - UVF

MANUVF

Manchester

Thu 29/1

06:00-16:25

2 stops38h 25m

Castries Hewanorra

Thu 5/2

17:15-17:00

2 stops43h 45m

£653

ManchesterCastries

MAN - UVF

MANUVF

Manchester

Wed 28/1

06:00-16:25

2 stops38h 25m

Castries Hewanorra

Wed 4/2

17:15-17:00

2 stops43h 45m

£654

BirminghamCastries

BHX - UVF

BHXUVF

Birmingham

Thu 29/1

13:25-16:25

2 stops31h 00m

Castries Hewanorra

Thu 5/2

17:15-12:35

2 stops39h 20m

£679

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sat 18/4

11:15-15:05

Nonstop8h 50m

Castries Hewanorra

Sat 25/4

20:30-09:50

Nonstop8h 20m

£687

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 20/1

13:00-16:20

1 stop31h 20m

Castries Hewanorra

Thu 29/1

17:15-09:20

2 stops36h 05m

£690

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 5/2

07:25-15:15

1 stop35h 50m

Castries Hewanorra

Tue 24/2

17:23-21:40

1 stop24h 17m

£693

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Mon 11/5

11:15-15:05

Nonstop8h 50m

Castries Hewanorra

Thu 21/5

22:05-11:25

Nonstop8h 20m

£694

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 19/1

08:05-15:43

1 stop35h 38m

Castries Hewanorra

Mon 2/2

17:21-09:30

1 stop36h 09m

£710

LondonCastries

LCY - UVF

LCYUVF

London City

Sun 8/2

13:45-15:05

2 stops29h 20m

Castries Hewanorra

Sun 22/2

16:25-17:20

2 stops20h 55m

£1,199

LondonCastries

LCY - UVF

LCYUVF

London City

Sun 15/2

13:45-15:05

2 stops29h 20m

Castries Hewanorra

Sun 22/2

16:25-16:35

2 stops20h 10m

£1,208

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Saint Lucia flights insights and trends

Explore insights for your Saint Lucia flight to craft the best travel plan

Prices

Airlines

Other information

What is the cheapest flight to Saint Lucia?

The best prices found on momondo for flights to Saint Lucia are:
£157 per person with Caribbean Airlines
£245 per person with interCaribbean Airways
£252 per person with JetBlue

See prices from:

Cheapest flights to cities in Saint Lucia

Click on the cities below to find out when it's cheapest to fly to Saint Lucia from United Kingdom

Castries

Find flights to Castries

Cheap Saint Lucia flight deals and tips

Summary info about Saint Lucia flight prices, duration and airlines

Best One-Way Price	£366
Best Round-Trip Price	£653
Fastest flight time	11h 50m

The best one-way flight price to Saint Lucia from United Kingdom in the last 72 hours is £366 (London Gatwick to Castries Hewanorra).

Search Deals

The best round-trip flight price to Saint Lucia from United Kingdom in the last 72 hours is £653 (Manchester to Castries Hewanorra).

Search Deals

The fastest flight to Saint Lucia from United Kingdom takes 11h 50m (London Heathrow to Castries George F. L. Charle).

Search Deals

Frequently asked questions about flying to Saint Lucia

Which airlines fly to Saint Lucia?

British Airways, TUI Airways and Finnair are the top three most popular airlines that fly to Saint Lucia according to our data. British Airways is the first choice among our users, with 73% of people opting to fly with this airline when travelling to Saint Lucia. Keep in mind that there are 9 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.

What is the most popular airport in Saint Lucia to fly to?

The most popular airport in Saint Lucia to fly to is Castries Hewanorra, based on our data. In the past 12 months, 76% of all momondo users who travelled to Saint Lucia chose to fly into Castries Hewanorra airport, which is located in the city of Castries.

How much are flights to Saint Lucia?

Flights to Saint Lucia have been found on momondo for as low as £409 per ticket recently. However, the average price tends to be £991 and anything for £812 or less is a good deal. £2,070 is the most expensive flight we’ve seen in the past week, though you may be able to avoid this price depending on what airport you fly from, what airline you choose, and how far in advance you book your flights.

What is the best day of the week to fly to Saint Lucia?

If your travel plans are flexible and you’re looking to save money on flights to Saint Lucia, then be sure to book your departure on a Tuesday. Flying out on a Tuesday, as well as a Monday, is your best option. Departing on a Saturday tends to be the most expensive day of the week to fly to Saint Lucia.

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

Prices for flights to Saint Lucia are updated daily.

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

There are 11 operators available for flights to Saint Lucia as of December 2025.

How old do you have to be to fly 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 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.

Why use momondo?

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

It is quick and easy to find flights to Saint Lucia 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 to Saint Lucia with flexible booking policies on momondo?

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

How can momondo help me find flights to Saint Lucia?

momondo helps you find the best flight to Saint Lucia by providing filters to narrow your choice of flights to those matching your criteria. You can select fights based on numerous factors such as price, departure and landing times, airport and airline.