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Cheap flights from London Gatwick Airport to Castries from £419

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SLU
27 Apr — 4 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to Castries

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to Castries
Explore the most affordable flight options available from Gatwick to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2026.

Thu 19/1110:05
LGW
-
SLU
1 stop12h 55m
Multiple Airlines
Sat 28/1115:45
SLU
-
LGW
1 stop13h 20m
Multiple Airlines
Deal found 26/3£783
Sat 25/412:40
LGW
-
SLU
2 stops34h 00m
Multiple Airlines
Sat 2/517:50
SLU
-
LGW
2 stops35h 55m
Multiple Airlines
Deal found 25/3£900
Fri 5/609:40
LGW
-
SLU
3 stops32h 30m
Multiple Airlines
Fri 12/618:00
SLU
-
LGW
2 stops35h 45m
Multiple Airlines
Deal found 26/3£922
Fri 5/609:40
LGW
-
SLU
3 stops32h 30m
Multiple Airlines
Sat 13/617:50
SLU
-
LGW
2 stops35h 55m
Multiple Airlines
Deal found 25/3£965
Sat 25/407:30
LGW
-
SLU
3 stops36h 05m
Multiple Airlines
Sat 9/517:50
SLU
-
LGW
2 stops35h 55m
Multiple Airlines
Deal found 28/3£971
Sun 12/411:05
LGW
-
SLU
1 stop12h 55m
Multiple Airlines
Sat 18/417:50
SLU
-
LGW
2 stops31h 30m
Multiple Airlines
Deal found 27/3£987
Sat 25/407:30
LGW
-
SLU
3 stops39h 10m
Multiple Airlines
Wed 6/510:15
SLU
-
LGW
3 stops24h 45m
Multiple Airlines
Deal found 24/3£994
Thu 14/521:30
LGW
-
SLU
3 stops44h 40m
Multiple Airlines
Sun 31/518:00
SLU
-
LGW
2 stops35h 45m
Multiple Airlines
Deal found 25/3£1,021
Fri 8/512:40
LGW
-
SLU
2 stops29h 30m
Multiple Airlines
Sat 16/517:50
SLU
-
LGW
2 stops35h 55m
Multiple Airlines
Deal found 24/3£1,023
Sat 6/612:40
LGW
-
SLU
2 stops30h 55m
Multiple Airlines
Sat 13/617:50
SLU
-
LGW
3 stops33h 05m
Multiple Airlines
Deal found 25/3£1,027

Find flight deals from Gatwick to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 March 2026.

Round-trip from

£900

One-way from

£410

Popular in

April

Cheapest in

November

Good round-trip deal

£665 or less

Good one-way deal

£504 or less
25/4-2/5
  • 25/4-2/5
  • 4 total stops
  • 69h 55m total
  • London to Castries
Search Deals
5/5
  • 5/5
  • 3 total stops
  • 53h 05m total
  • London to Castries
Search Deals
Highest demand for flights based on searches. 39% potential increase in price (£407 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (£92 potential savings vs. average return price).
Search Deals
Price to beat on a round-trip flight from London Gatwick to Castries George F. L. Charle.
Search Deals
Price to beat on a one-way flight from London Gatwick to Castries George F. L. Charle.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick to Castries 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 28 March 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sat 25/4

07:30-14:35

3 stops36h 05m

Castries George F. L. Charle

Sat 9/5

17:50-10:45

2 stops35h 55m

£971

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sat 25/4

07:30-17:40

3 stops39h 10m

Castries George F. L. Charle

Wed 6/5

10:15-16:00

3 stops24h 45m

£994

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Fri 15/5

09:50-13:10

3 stops32h 20m

Castries George F. L. Charle

Mon 18/5

19:10-06:20

2 stops30h 10m

£1,074

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sun 26/4

12:40-15:35

2 stops31h 55m

Castries George F. L. Charle

Sun 3/5

05:00-10:45

2 stops24h 45m

£1,103

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Fri 8/5

08:55-13:10

3 stops33h 15m

Castries George F. L. Charle

Sun 17/5

18:00-10:45

2 stops35h 45m

£1,137

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Thu 14/5

13:05-14:35

2 stops30h 30m

Castries George F. L. Charle

Sun 31/5

18:00-10:45

2 stops35h 45m

£1,180

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Fri 5/6

10:35-13:10

3 stops31h 35m

Castries George F. L. Charle

Fri 26/6

18:00-10:45

2 stops35h 45m

£1,186

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Mon 4/5

12:40-15:35

2 stops31h 55m

Castries George F. L. Charle

Fri 8/5

18:00-10:45

2 stops35h 45m

£1,224
Fastest return journey

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Wed 13/5

08:50-13:10

3 stops33h 20m

Castries George F. L. Charle

Wed 20/5

10:15-10:45

2 stops19h 30m

£1,230

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Fri 10/4

12:40-15:15

3 stops31h 35m

Castries George F. L. Charle

Thu 16/4

17:50-10:45

2 stops35h 55m

£1,230

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Gatwick to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries 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 Castries

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

Currently, May is the cheapest month in which you can book a flight from London Gatwick Airport to Castries (average of £359). Flying from London Gatwick Airport to Castries in December is currently the most expensive (average of £661). 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.

Related info for your journey

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

  • What airport do you fly into for flights to Castries from London Gatwick?

    Castries George F. L. Charle (SLU) is the airport you will fly into if you book a flight from London Gatwick to Castries. You should not have trouble finding flights to George F. L. Charle from London Gatwick; the airport handles an average of 0 inbound flights from London Gatwick per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Castries airport from London Gatwick. It is only a 0.7 mi journey from George F. L. Charle (SLU) to Castries’s city center.

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

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

  • How can I find direct flights from Gatwick to Castries?

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

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

    Yes. Cheapflights offers flight deals from Gatwick to Castries 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 Castries?

    Currently, May is the cheapest month in which you can book a flight from London Gatwick Airport to Castries (average of £359). Flying from London Gatwick Airport to Castries in December is currently the most expensive (average of £661). 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

Travelling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Gros Islet
Rodney Bay

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Gatwick to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Castries flights
Gatwick to Castries flights
London City to Castries flights
Heathrow to Castries flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Gatwick to Castries?

Deals for Gatwick to Castries flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Gatwick to Castries for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Castries from Gatwick? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Gatwick to Castries become cheaper?

Yes, Cheapflights offers price alerts on Gatwick to Castries flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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