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Cheap flights from London Gatwick Airport to Saint Lucia from £400

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — UVF
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Gatwick to Saint Lucia

Keep the following information in mind while searching for Gatwick to Saint Lucia flight deals. Data was last updated 17 September 2025.

Round-trip from

£515

One-way from

£400

Popular in

December

Cheapest in

September

Average price

£472

Good round-trip deal

£547 or less

Good one-way deal

£510 or less
British Airways
  • British Airways
  • 9/3-15/3
  • Nonstop
  • 17h 20m total
  • London to Saint Lucia
Search Deals
9/10
  • 9/10
  • 2 total stops
  • 53h 05m total
  • London to Saint Lucia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£45 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from London Gatwick to Saint Lucia.
Search Deals
Price to beat on a one-way flight from London Gatwick to Saint Lucia.
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Find flight deals from Gatwick to Saint Lucia

Cheapest flights from Gatwick to Saint Lucia
Explore the most affordable flight options available from Gatwick to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Thu 30/1010:00LGW - UVF
Nonstop9h 05mBritish Airways
Thu 6/1122:05UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 15/9£531
Wed 1/1011:15LGW - UVF
Nonstop8h 45mBritish Airways
Wed 8/1020:25UVF - LGW
Nonstop8h 20mBritish Airways
Deal found 15/9£532
Wed 8/1011:15LGW - UVF
Nonstop8h 45mBritish Airways
Sun 12/1020:25UVF - LGW
Nonstop8h 20mBritish Airways
Deal found 15/9£554
Fri 31/1010:00LGW - UVF
Nonstop9h 05mBritish Airways
Fri 7/1120:50UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 16/9£563
Mon 10/1110:00LGW - UVF
Nonstop9h 05mBritish Airways
Tue 3/220:50UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 15/9£568
Wed 5/1110:05LGW - UVF
Nonstop9h 05mBritish Airways
Wed 19/1120:35UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 15/9£571
Wed 12/1110:05LGW - UVF
Nonstop9h 05mBritish Airways
Wed 19/1120:35UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 16/9£572
Tue 4/1110:00LGW - UVF
Nonstop9h 05mBritish Airways
Tue 16/1220:50UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 15/9£582
Mon 10/1110:00LGW - UVF
Nonstop9h 05mBritish Airways
Fri 30/120:50UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 15/9£598
Wed 5/1113:00LGW - SLU
2 stops28h 10mMultiple Airlines
Wed 19/1110:25SLU - LGW
3 stops29h 50mMultiple Airlines
Deal found 15/9£890
Wed 15/1009:25LGW - SLU
3 stops32h 45mMultiple Airlines
Mon 20/1020:20SLU - LGW
2 stops29h 00mMultiple Airlines
Deal found 16/9£941
Wed 12/1110:40LGW - SLU
3 stops30h 30mMultiple Airlines
Wed 19/1110:25SLU - LGW
3 stops29h 50mMultiple Airlines
Deal found 15/9£955

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick to Saint Lucia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Saint Lucia that are best for you.

Fly from

Gatwick

Fly to

Saint Lucia

Route

Depart

Return

Price

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Mon 9/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Tue 24/3

20:50-09:05

Nonstop8h 15m

£526

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 12/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Wed 25/3

20:35-08:50

Nonstop8h 15m

£526

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Wed 1/10

11:15-15:00

Nonstop8h 45m

Castries Hewanorra

Wed 8/10

20:25-09:45

Nonstop8h 20m

£532

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sun 15/3

10:05-15:10

Nonstop9h 05m

Castries Hewanorra

Sun 22/3

20:35-08:50

Nonstop8h 15m

£538

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Wed 11/3

10:05-15:10

Nonstop9h 05m

Castries Hewanorra

Tue 24/3

20:50-09:05

Nonstop8h 15m

£543

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 12/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Thu 26/3

22:05-10:20

Nonstop8h 15m

£559

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Mon 9/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Mon 23/3

22:05-10:20

Nonstop8h 15m

£559

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sun 8/3

10:05-15:10

Nonstop9h 05m

Castries Hewanorra

Tue 24/3

20:50-09:05

Nonstop8h 15m

£559

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 12/3

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Sun 22/3

20:35-08:50

Nonstop8h 15m

£559

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sun 8/3

10:05-15:10

Nonstop9h 05m

Castries Hewanorra

Wed 25/3

20:35-08:50

Nonstop8h 15m

£559

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 21 results
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Best time to book a flight from Gatwick to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Gatwick 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 from London Gatwick Airport to Saint Lucia

What is the cheapest month to book a flight from London Gatwick Airport to Saint Lucia?

Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to Saint Lucia (average of £328). Flying from London Gatwick Airport to Saint Lucia in December is currently the most expensive (average of £1,100). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LGW to LC?

Find hourly flight availability from Gatwick to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Gatwick Airport to Saint Lucia as you normally would.

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 17 September 2025.
See what other customers who have flown with Finnair and British Airways from London Gatwick Airport to Saint Lucia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,324 reviews
Check prices

Entertainment

6.9

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.5

Overall

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Finnair
7.6
Good
1,324 reviews
Finnair
7.6
Good
1,324 reviews
Check prices

Entertainment

6.9

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.5

Overall

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
British Airways
6.7
Okay
7,363 reviews
Finnair
7.6
Good
1,324 reviews
Check prices

Entertainment

6.9

Crew

8.1

Boarding

7.6

Food

6.7

Comfort

7.5

Overall

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Gatwick Airport to Saint Lucia?

    Airlines like British Airways fly from London Gatwick Airport to Saint Lucia in about 9h 05m. The time it takes to get you to your destination is usually consistent. London Gatwick Airport and Saint Lucia are separated by a distance of 4223 mi. All flights are typically direct.

  • What are the cheapest flights from London Gatwick Airport to Saint Lucia?

    The cheapest flight price from London Gatwick Airport to Saint Lucia is £394. On average you can expect to pay £1,384. The most popular route, (London Gatwick - Castries Hewanorra), can usually be booked for £484.

  • Can I find deals for flights from Gatwick to Saint Lucia that include hotel bookings?

    Yes. In addition to deals on Gatwick to Saint Lucia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Saint Lucia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Saint Lucia.

  • Can I find deals for business class flights from Gatwick to Saint Lucia?

    Yes. Cheapflights offers flight deals from Gatwick to Saint Lucia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Gatwick Airport to Saint Lucia?

    Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to Saint Lucia (average of £328). Flying from London Gatwick Airport to Saint Lucia in December is currently the most expensive (average of £1,100). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Gatwick to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Gatwick to Saint Lucia

Discover the top 3 airlines that operate flights from Gatwick to Saint Lucia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
TUI AirwaysCheapest£278Average£383FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
British AirwaysCheapest£400Average£584FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£578Average£776FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Gatwick to Saint Lucia?

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Why should you use Cheapflights to find cheap flight tickets from Gatwick to Saint Lucia?

Cheapflights helps you find that perfect flight to Saint Lucia from Gatwick by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Gatwick to Saint Lucia with no change fees?

Certainly. Search results for flights to Saint Lucia from Gatwick shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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