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

Return flights

29 Dec - 05 Jan	SWISS
04 Dec - 11 Dec	Air Transat
10 Dec - 17 Dec	Air Transat
05 Dec - 12 Dec	Air Transat
08 Dec - 15 Dec	Air Transat
03 Dec - 10 Dec	Air Transat
07 Dec - 14 Dec	Air Transat
02 Dec - 09 Dec	British Airways
06 Dec - 13 Dec	Air France
31 Dec - 07 Jan	Air Canada
14 Dec - 21 Dec	British Airways
16 Dec - 23 Dec	British Airways
30 Dec - 06 Jan	British Airways
28 Dec - 04 Jan	British Airways
26 Dec - 02 Jan	British Airways
22 Dec - 03 Jan	British Airways

Also check the deals for one-way flights from Montreal to Copenhagen 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 Copenhagen in December from 468€

Return flights