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

Return flights

07 Dec - 14 Dec	TAP
10 Dec - 17 Dec	TAP
05 Dec - 12 Dec	FrenchBee
06 Dec - 13 Dec	Azores Airlines
09 Dec - 16 Dec	British Airways
02 Dec - 09 Dec	British Airways
01 Dec - 08 Dec	British Airways
03 Dec - 10 Dec	Air Transat
08 Dec - 15 Dec	Air Transat
13 Dec - 20 Dec	Azores Airlines
31 Dec - 07 Jan	TAP
30 Dec - 06 Jan	Air Transat
29 Dec - 05 Jan	British Airways
27 Dec - 03 Jan	Azores Airlines
28 Dec - 04 Jan	TAP
26 Dec - 02 Jan	British Airways

Also check the deals for one-way flights from Montreal to Cologne 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 Cologne in December from $674

Return flights