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

Return flights

29 Dec - 04 Jan	Ryanair
05 Dec - 07 Dec	Ryanair
06 Dec - 07 Dec	Ryanair
04 Dec - 07 Dec	Ryanair
16 Dec - 27 Jan	Ryanair
15 Dec - 18 Dec	Ryanair
06 Dec - 08 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
30 Dec - 01 Jan	Ryanair
18 Dec - 21 Dec	Ryanair
29 Dec - 02 Jan	Ryanair
12 Dec - 14 Dec	Ryanair
30 Dec - 02 Jan	Ryanair
27 Dec - 30 Dec	Ryanair
10 Dec - 11 Dec	Ryanair
19 Dec - 03 Jan	Ryanair

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

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 December from 125€

Return flights