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£399+ Cheap flights to Saint Lucia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
— UVF
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Flights to Saint Lucia in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Saint Lucia
Explore the most affordable flight options available to Saint Lucia. Find the lowest fares based on data from user searches, with prices last updated on 10 March 2026.

Sun 13/911:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Fri 18/920:50
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 5/3£612
Mon 29/611:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Mon 6/722:05
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 5/3£614
Thu 14/511:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sun 24/520:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 9/3£619
Wed 11/1110:05
LGW
-
UVF
Nonstop9h 05m
British Airways
Sun 15/1120:35
UVF
-
LGW
Nonstop8h 15m
British Airways
Deal found 8/3£620
Sun 31/511:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Sun 14/620:30
UVF
-
LGW
Nonstop8h 20m
British Airways
Deal found 5/3£628
Mon 13/411:55
LHR
-
UVF
1 stop31h 42m
JetBlue
Wed 22/415:56
UVF
-
LHR
1 stop36h 34m
JetBlue
Deal found 5/3£634

Find flight deals to Saint Lucia

Find the latest flights to Saint Lucia in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 10 March 2026.

Return from

£799

One-way from

£399

Popular in

April

Cheapest in

November

Good round-trip deal

£655 or less

Good one-way deal

£461 or less
1/6-1/7
  • 1/6-1/7
  • 2 total stops
  • 25h 30m total
  • London to Castries
Search Deals
25/3
  • 25/3
  • 2 total stops
  • 37h 10m total
  • London to Saint Lucia
Search Deals
Highest demand for flights based on searches. 45% potential increase in price (£710 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease (£119 potential savings vs. average return price).
Search Deals
Price to beat on a round-trip flight from London to Saint Lucia.
Search Deals
Price to beat on a one-way flight from London to Saint Lucia.
Search Deals

Cheapflights Fare Finder

 
Locate flights to Saint Lucia that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 10 March 2026.
Use the filters below to find and compare flights to Saint Lucia that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 13/4

08:15-14:37

1 stop35h 22m

Castries Hewanorra

Wed 22/4

15:56-20:45

1 stop23h 49m

£679

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 31/3

09:55-13:58

2 stops57h 03m

Castries Hewanorra

Mon 6/4

15:18-06:45

2 stops34h 27m

£754

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 16/8

14:05-14:20

2 stops53h 15m

Castries Hewanorra

Tue 25/8

15:15-11:50

1 stop15h 35m

£770

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 2/4

15:15-13:58

1 stop27h 43m

Castries Hewanorra

Tue 7/4

15:18-13:45

2 stops41h 27m

£787

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Tue 12/5

20:10-13:40

2 stops46h 30m

Castries Hewanorra

Thu 21/5

14:30-10:45

1 stop15h 15m

£827

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 12/5

19:25-13:45

2 stops23h 20m

Castries Hewanorra

Thu 21/5

15:16-12:10

1 stop15h 54m

£832

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 11/5

20:10-14:13

2 stops23h 03m

Castries Hewanorra

Thu 21/5

15:16-12:10

1 stop15h 54m

£832

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sun 26/4

14:30-14:26

2 stops28h 56m

Castries Hewanorra

Mon 11/5

14:45-06:50

2 stops35h 05m

£928

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Fri 14/8

12:30-13:09

1 stop29h 39m

Castries Hewanorra

Fri 4/9

15:09-18:55

2 stops22h 46m

£933

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Fri 5/6

11:55-15:19

1 stop32h 24m

Castries Hewanorra

Sun 7/6

16:41-09:30

1 stop35h 49m

£934

Flights are sorted by cheapest return flights first.

Deals found on 7/3

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Saint Lucia

How long is the flight to Saint Lucia?

On average, a flight from London to Saint Lucia takes 20 hours 23 minutes. Flights to Saint Lucia from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Saint Lucia?

The most popular airlines flying from London to Saint Lucia are British Airways, Finnair and Air Canada.

British Airways
British Airways
From £486
Finnair
Finnair
From £697
Air Canada
Air Canada
From £535
TUI Airways
TUI Airways
From £262

What are the cheapest airlines that fly to Saint Lucia?

The cheapest airlines flying from London to Saint Lucia are TUI Airways, British Airways and Air Canada.

Reviews of airlines servicing Saint Lucia

Get insights into the airlines that provide service to Saint Lucia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Lucia. Reviews last updated 10 March 2026.
Get a feel of what it's like to fly with Finnair,JetBlue, andIcelandair to Saint Lucia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,371 reviews
Check prices

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,371 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
JetBlue
7.2
Good
2,900 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Icelandair
7.1
Good
619 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
7,781 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

FAQs about flying to Saint Lucia

Saint Lucia climate

The climate is tropical – and lovely – year round. Temperatures average 27 degrees and mild trade winds keep humidity to a comfortable level. December and January are the coolest months, while June through August are the hottest. The hurricane season runs from June to November. January to April is the dry season while the rainy season lasts from May to August.

What is good to know if travelling to Saint Lucia?

  • Don’t miss the drive-in volcano, Mount Soufriere. It is said to be the only drive-in volcano in the world.
  • Pigeon Island is a national park on a 40-acre islet linked by a causeway to the west coast of St Lucia. It has several military sites (barracks and garrisons) built by the British as they fought the French for control of St Lucia.
  • Bathe like a French soldier: when the French “owned” St Lucia, King Louis XVI had bathhouses built for his men at Diamond Falls. The mineral-rich falls were believed to have therapeutic properties. A dip under the falls is still popular. And the ever-changing colours – the water turns yellow, then black then green then grey – come from sulphuric deposits over many years.
  • The Pitons can be climbed in about two hours. Bathe in the nearby Sulphur Springs, a mineral-rich river. Afterwards, have a local beer of the same name.
  • La Tille waterfall, set in a ten-acre natural garden, is less well-known than Diamond Falls, but beautiful.
  • Leatherback turtles crawl onto the beach at Grande Anse in the north of the island to lay their eggs, between mid-March and the end of July.
  • Take a hike through the rainforest. The Barre de l’lsle Trail splits the island in two and takes about three hours to hike.

Saint Lucia airport overview

Hewanorra International Airport is the smaller of St Lucia’s two airports (the other is George F L Charles Airport) and handles approximately 500,000 passengers annually. It was originally a military facility and used to be known as Beane Army Airfield.

The airport is situated 3.7km (2.3 miles) north of Vieux Fort and 56km (34 miles) from Castries. As you’d expect in the Caribbean, staff members are friendly and helpful and passengers should have a good experience travelling through Hewanorra International Airport.

Once you’re ready to leave the airport, there are several ways of getting around St Lucia, including helicopter charters, yachts and ferries. Visitors are encouraged to try some of these alternative modes as they offer a unique glimpse into the Caribbean lifestyle.

  • When is the best time to fly to Saint Lucia?

    Peak Season:  The best time to visit is between November and May. The ARC – Atlantic Rally for Cruisers, a major yacht event in November and the Jazz Festival takes place on Pigeon Island in May. The carnival takes place in July.  Off Season:  Hurricane season is June through November

  • Can I find cheaper flights to Saint Lucia if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Saint Lucia on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Saint Lucia?

    Based on reviews from Cheapflights users, TUI Airways is rated the highest out of the airlines that fly to Saint Lucia.

  • What is the cheapest airport to fly to in Saint Lucia?

    Castries George F. L. Charle is currently the cheapest airport to fly to in Saint Lucia. One-way flights to Castries George F. L. Charle typically cost £116, while return flights cost around £124.

  • How much is a return flight to Saint Lucia?

    A return flight to Saint Lucia will typically cost around £377, however they can be found for as little as £369.

  • Where does the fastest flight to Saint Lucia depart from?

    For those looking to save time traveling to Saint Lucia, London offers the quickest one-way flight (8 hours 50 minutes).

  • Does Castries Hewanorra have car hire?

    Yes. Those touching down at Castries Hewanorra can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Castries Hewanorra?

    Yes. Castries Hewanorra has hotels nearby for those requiring accommodations. Charlery's Inn is the closest property to Castries Hewanorra (0.0 mi away from Castries Hewanorra).

See more FAQs

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Flights to Castries
Flights to Castries

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