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

Return flights

30 Sep - 03 Oct	Ryanair
24 Sep - 28 Sep	Ryanair
19 Sep - 24 Sep	Ryanair
30 Sep - 02 Oct	Ryanair
30 Sep - 01 Oct	Ryanair
15 Sep - 16 Sep	Ryanair
24 Sep - 01 Oct	Ryanair
23 Sep - 25 Sep	Ryanair
29 Sep - 06 Oct	Ryanair
12 Sep - 16 Sep	Ryanair
28 Sep - 04 Oct	Ryanair
14 Sep - 16 Sep	Ryanair
22 Sep - 24 Sep	Ryanair
27 Sep - 28 Sep	Ryanair
15 Sep - 20 Sep	Ryanair
27 Sep - 04 Oct	Ryanair
08 Sep - 15 Sep	Ryanair
27 Sep - 16 Oct	Ryanair
26 Sep - 03 Oct	Ryanair
28 Sep - 05 Oct	Jet2

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 94€

Return flights