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

Return flights

03 Dec - 10 Dec	TAP
10 Dec - 17 Dec	TAP
01 Dec - 08 Dec	Air Transat
07 Dec - 14 Dec	Air Transat
22 Dec - 29 Dec	TAP
17 Dec - 24 Dec	TAP
31 Dec - 07 Jan	TAP
29 Dec - 05 Jan	TAP
12 Dec - 19 Dec	TAP
22 Dec - 02 Jan	Azores Airlines
11 Dec - 07 Jan	Air Transat
15 Dec - 22 Dec	TAP
26 Dec - 02 Jan	TAP
14 Dec - 19 Dec	Air Transat
14 Dec - 21 Dec	Air Transat
25 Dec - 05 Jan	Air Transat
28 Dec - 04 Jan	Air Transat
23 Dec - 02 Jan	Air Transat

Also check the deals for one-way flights from Montreal 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 Montreal to Charleroi in December from $697

Return flights