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Cheap flights from London to Castries from £522

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 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SLU
10 Jul — 17 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Castries

Enter your travel dates to find the best prices.

Cheapest flights from London to Castries
Explore the most affordable flight options available from London to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 June 2026.

Thu 3/910:45
LHR
-
SLU
1 stop13h 15m
Multiple Airlines
Thu 17/912:35
SLU
-
LHR
1 stop12h 15m
Multiple Airlines
Deal found 9/6£657
Wed 16/911:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Wed 30/912:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 6/6£714
Sun 26/711:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Mon 7/912:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 7/6£771
Sat 26/911:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Mon 5/1012:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 8/6£775
Fri 24/711:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Sun 6/912:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 6/6£797
Mon 9/1109:40
LHR
-
SLU
1 stop13h 15m
Multiple Airlines
Mon 16/1116:50
SLU
-
LHR
1 stop13h 05m
Multiple Airlines
Deal found 10/6£832
Sun 26/711:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Fri 4/912:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 10/6£840
Sat 25/711:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Sun 6/912:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 6/6£841
Fri 31/711:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Sun 6/912:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 6/6£842
Mon 13/711:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Fri 4/912:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 8/6£843
Wed 5/811:10
LHR
-
SLU
1 stop12h 50m
Multiple Airlines
Wed 19/812:35
SLU
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 10/6£849
Sat 21/1110:05
LGW
-
SLU
1 stop12h 55m
Multiple Airlines
Wed 2/1215:45
SLU
-
LGW
1 stop13h 20m
Multiple Airlines
Deal found 6/6£859

Find flight deals from London to Castries

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 10 June 2026.

Round-trip from

£657

One-way from

£522

Good round-trip deal

£612 or less

Good one-way deal

£492 or less
3/9-17/9
  • 3/9-17/9
  • 2 total stops
  • 25h 30m total
  • London to Castries
Search Deals
14/11
  • 14/11
  • 1 total stop
  • 12h 55m total
  • London to Castries
Search Deals
Price to beat on a round-trip flight from London (LON) to Castries George F. L. Charle.
Search Deals
Price to beat on a one-way flight from London (LON) to Castries George F. L. Charle.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 10 June 2026.
Use the filters below to find and compare flights from London 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 21/11

10:05-19:00

1 stop12h 55m

Castries George F. L. Charle

Wed 2/12

15:45-09:05

1 stop13h 20m

£859
Fastest return journey

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Fri 3/7

11:10-19:00

1 stop12h 50m

Castries George F. L. Charle

Fri 10/7

12:35-06:15

1 stop12h 40m

£911

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Tue 1/12

10:05-19:00

1 stop12h 55m

Castries George F. L. Charle

Sun 20/12

15:45-09:05

1 stop13h 20m

£921

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Sat 1/8

11:10-19:00

1 stop12h 50m

Castries George F. L. Charle

Mon 10/8

12:35-06:15

1 stop12h 40m

£952

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Sat 5/12

10:05-19:00

1 stop12h 55m

Castries George F. L. Charle

Wed 16/12

15:45-09:05

1 stop13h 20m

£958

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Wed 8/7

11:10-19:00

1 stop12h 50m

Castries George F. L. Charle

Wed 5/8

12:35-06:15

1 stop12h 40m

£996

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Thu 24/9

16:50-14:35

3 stops26h 45m

Castries George F. L. Charle

Sun 4/10

18:55-10:00

3 stops34h 05m

£1,105

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Mon 2/11

10:00-08:10

3 stops26h 10m

Castries George F. L. Charle

Mon 16/11

19:40-10:55

3 stops35h 15m

£1,116

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Sat 7/11

15:00-14:30

3 stops27h 30m

Castries George F. L. Charle

Sun 15/11

05:00-20:00

2 stops35h 00m

£1,132

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Tue 1/9

08:50-09:30

3 stops29h 40m

Castries George F. L. Charle

Tue 15/9

11:45-15:10

3 stops22h 25m

£1,192

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 30 resultsSorted by cheapest first
1
2
3

Best time to book a flight from London to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from London 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 to Castries
No data available for this route at this time. Please check back soon.

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 10 June 2026.
Get a feel of what it's like to fly with British Airways from London to Castries by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,035 reviews
Check prices

Boarding

6.9

Food

6.4

Overall

6.7

Comfort

6.8

Entertainment

6.4

Crew

7.7

Reviews

1 / 20
6.0
Good

David,Jan 2026

LHR - MAD

It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.
British Airways
6.7
Okay
8,035 reviews
British Airways
6.7
Okay
8,035 reviews
Check prices

Boarding

6.9

Food

6.4

Overall

6.7

Comfort

6.8

Entertainment

6.4

Crew

7.7

Reviews

1 / 20
6.0
Good

David,Jan 2026

LHR - MAD

It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.

Related info for your journey

Find useful and relevant information for your journey from London 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?

    For a flight from London to Castries, you will be flying into George F. L. Charle. Castries George F. L. Charle (SLU) is just 0.7 mi from the center of the city. George F. L. Charle is the only Castries airport and it handles 0 inbound flights from London per day. 0 airlines have flights to Castries George F. L. Charle from London on a regular basis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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.

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

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Castries flexibly with Cheapflights today.

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