AirHint found the following cheapest return flights from London (LON) to Charleroi (CRL) in September 2025 (see full year).

Return flights

17 Sep - 19 Sep	Wizz Air Malta
10 Sep - 12 Sep	Wizz Air Malta
24 Sep - 25 Sep	Wizz Air UK
17 Sep - 21 Sep	Wizz Air Malta
11 Sep - 16 Sep	Wizz Air UK
15 Sep - 22 Sep	Wizz Air Malta
18 Sep - 25 Sep	Wizz Air UK
17 Sep - 07 Oct	Wizz Air Malta
22 Sep - 25 Sep	Ryanair
23 Sep - 30 Sep	Wizz Air UK
27 Sep - 30 Sep	Wizz Air UK
30 Sep - 01 Oct	Ryanair
28 Sep - 02 Oct	Ryanair

Also check the deals for one-way flights from London to Charleroi in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from London to Charleroi in September from $147

Return flights