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Cheap flights from London Gatwick Airport to Castries from £556

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SLU
11 Jan — 18 Jan1
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 12 December 2025.

Thu 18/1209:20LGW - SLU
1 stop30h 45mMultiple Airlines
Sun 21/1216:00SLU - LGW
2 stops22h 35mMultiple Airlines
Deal found 10/12£907
Wed 17/1208:15LGW - SLU
3 stops38h 45mMultiple Airlines
Sun 21/1216:00SLU - LGW
2 stops22h 35mMultiple Airlines
Deal found 10/12£1,114
Wed 17/1210:40LGW - SLU
2 stops36h 20mMultiple Airlines
Thu 22/109:10SLU - LGW
2 stops16h 10mMultiple Airlines
Deal found 11/12£1,142
Thu 18/1209:20LGW - SLU
1 stop13h 40mMultiple Airlines
Fri 19/1216:00SLU - LGW
2 stops23h 25mMultiple Airlines
Deal found 10/12£1,275
Tue 16/1211:40LGW - SLU
2 stops25h 50mMultiple Airlines
Thu 18/1209:10SLU - LGW
1 stop16h 20mMultiple Airlines
Deal found 10/12£1,592
Sun 14/1211:40LGW - SLU
2 stops31h 55mMultiple Airlines
Thu 18/1209:10SLU - LGW
1 stop16h 20mMultiple Airlines
Deal found 10/12£1,854
Sat 27/1220:15LGW - SLU
2 stops26h 10mMultiple Airlines
Sat 3/113:55SLU - LGW
2 stops25h 15mMultiple Airlines
Deal found 11/12£1,928
Fri 12/1211:40LGW - SLU
2 stops29h 30mMultiple Airlines
Fri 19/1216:00SLU - LGW
2 stops18h 50mMultiple Airlines
Deal found 11/12£1,946

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 12 December 2025.

Round-trip from

£934

One-way from

£556

Popular in

December

Cheapest in

November

Average price

£907

Good round-trip deal

£650 or less

Good one-way deal

£433 or less
20/5-10/6
  • 20/5-10/6
  • 4 total stops
  • 68h 10m total
  • London to Castries
Search Deals
5/4
  • 5/4
  • 2 total stops
  • 31h 30m total
  • London to Castries
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£6 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 December 2025
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.
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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 12 December 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Castries that are best for you.

Fly from

Gatwick

Fly to

Castries

Route

Depart

Return

Price

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Wed 20/5

13:05-13:10

2 stops29h 05m

Castries George F. L. Charle

Wed 10/6

10:15-06:20

2 stops39h 05m

£934

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sun 15/3

10:40-15:35

3 stops32h 55m

Castries George F. L. Charle

Sun 22/3

05:00-15:10

3 stops30h 10m

£1,104

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Wed 11/2

19:25-17:35

2 stops26h 10m

Castries George F. L. Charle

Sun 22/2

12:35-05:35

1 stop13h 00m

£1,111

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Mon 5/1

12:55-15:15

2 stops30h 20m

Castries George F. L. Charle

Sat 10/1

12:35-05:20

2 stops36h 45m

£1,165

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sun 22/2

11:40-15:35

2 stops31h 55m

Castries George F. L. Charle

Fri 27/2

19:10-09:45

2 stops34h 35m

£1,190

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Wed 11/2

19:25-17:35

2 stops26h 10m

Castries George F. L. Charle

Thu 19/2

12:35-05:30

1 stop12h 55m

£1,210

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sun 15/2

11:40-15:35

2 stops31h 55m

Castries George F. L. Charle

Sun 22/2

12:35-05:35

1 stop13h 00m

£1,227

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Thu 12/2

19:35-18:25

2 stops26h 50m

Castries George F. L. Charle

Sun 22/2

12:35-05:35

1 stop13h 00m

£1,229

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sun 5/4

13:05-15:35

2 stops31h 30m

£556

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Thu 8/1

21:40-17:35

3 stops47h 55m

£586

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 12 results
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, March is the cheapest month in which you can book a flight from London Gatwick Airport to Castries (average of £285). Flying from London Gatwick Airport to Castries in July is currently the most expensive (average of £583). 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.

Reviews of airlines servicing Castries

Get insights into the airlines that provide service to Castries. 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 Castries. Reviews last updated 12 December 2025.
Read through reviews of airlines operating flights from London Gatwick Airport to Castries, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,571 reviews
Check prices

Entertainment

6.4

Food

6.4

Boarding

6.9

Comfort

6.7

Crew

7.6

Overall

6.7

Reviews

1 / 20
10.0
Excellent

María Victoria,Nov 2025

LHR - GRU

Seats were comfortable for economy. Blanket and pillow provided, same as headphones. For some reason the uk plug wouldn’t charge and had to use the US charger. Also couldn’t use WiFi as keep saying BA club pw was wrong although it wasn’t: but minor things. Overall good flight and attentive crew.
British Airways
6.7
Okay
7,571 reviews
British Airways
6.7
Okay
7,571 reviews
Check prices

Entertainment

6.4

Food

6.4

Boarding

6.9

Comfort

6.7

Crew

7.6

Overall

6.7

Reviews

1 / 20
10.0
Excellent

María Victoria,Nov 2025

LHR - GRU

Seats were comfortable for economy. Blanket and pillow provided, same as headphones. For some reason the uk plug wouldn’t charge and had to use the US charger. Also couldn’t use WiFi as keep saying BA club pw was wrong although it wasn’t: but minor things. Overall good flight and attentive crew.

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 1 airline has 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.

  • What is the cheapest airline to fly from London Gatwick Airport to Castries round-trip?

    According to our current data, British Airways (£451), offers the cheapest pricing from London Gatwick Airport to Castries. British Airways is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • 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, March is the cheapest month in which you can book a flight from London Gatwick Airport to Castries (average of £285). Flying from London Gatwick Airport to Castries in July is currently the most expensive (average of £583). 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.
Gatwick to Castries flights
Heathrow to Castries flights
London City to Castries flights
Heathrow to Castries flights

Top airline flying from Gatwick to Castries

Discover the top airline that operate flights from Gatwick to Castries. 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£451Average£577FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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