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

Return flights

03 Dec - 10 Dec	Air Transat
04 Dec - 11 Dec	Air Transat
16 Dec - 23 Dec	Brussels Airlines
31 Dec - 07 Jan	British Airways
02 Dec - 09 Dec	SWISS
06 Dec - 13 Dec	Air Canada
08 Dec - 15 Dec	Air Canada
01 Dec - 08 Dec	SWISS
05 Dec - 12 Dec	SWISS
07 Dec - 14 Dec	SWISS
09 Dec - 16 Dec	SWISS
25 Dec - 01 Jan	British Airways
30 Dec - 06 Jan	Air France
29 Dec - 05 Jan	Air Canada
28 Dec - 04 Jan	Air Canada
27 Dec - 03 Jan	Lufthansa

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.

Book a cheap hotel in Copenhagen

Cheap car rent in Copenhagen

Cheapest return flights from Montreal to Copenhagen in December from $655

Return flights