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

Return flights

16 Sep - 18 Sep	Ryanair
17 Sep - 24 Sep	Ryanair
23 Sep - 24 Sep	Ryanair
18 Sep - 21 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
13 Sep - 17 Sep	Ryanair
16 Sep - 17 Sep	Ryanair
24 Sep - 28 Sep	Ryanair
12 Sep - 17 Sep	Ryanair
09 Sep - 11 Sep	Ryanair
30 Sep - 01 Oct	Ryanair
26 Sep - 03 Oct	Ryanair
07 Sep - 14 Oct	Ryanair
22 Sep - 06 Oct	Ryanair
27 Sep - 04 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.

Book a cheap hotel in Charleroi

Cheap car rent in Charleroi

Cheapest return flights from London to Charleroi in September from 87€

Return flights