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

Return flights

12 Dec - 15 Dec	Pegasus Airlines
08 Dec - 12 Dec	Pegasus Airlines
13 Dec - 16 Dec	Pegasus Airlines
08 Dec - 12 Dec	Pegasus Airlines	direct
13 Dec - 16 Dec	Pegasus Airlines	direct
22 Dec - 29 Dec	Pegasus Airlines	direct
25 Dec - 29 Dec	Wizz Air
26 Dec - 02 Jan	Wizz Air
26 Dec - 02 Jan	Pegasus Airlines	direct
25 Dec - 29 Dec	Pegasus Airlines	direct
12 Dec - 15 Dec	Pegasus Airlines	direct
12 Dec - 21 Dec	Pegasus Airlines	direct

Also check the deals for one-way flights from Istanbul 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 Istanbul to Charleroi in December from $195

Return flights