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

Return flights

08 Dec - 15 Dec	Air Transat
01 Dec - 08 Dec	Air Transat
04 Dec - 11 Dec	Air Transat
05 Dec - 12 Dec	FrenchBee
03 Dec - 10 Dec	FrenchBee
07 Dec - 14 Dec	Air Transat
10 Dec - 17 Dec	FrenchBee
06 Dec - 13 Dec	Air Transat
02 Dec - 09 Dec	British Airways
09 Dec - 16 Dec	Air Transat
31 Dec - 07 Jan	British Airways
15 Dec - 31 Jan	British Airways
26 Dec - 09 Jan	FrenchBee
30 Dec - 06 Jan	FrenchBee
29 Dec - 05 Jan	British Airways
18 Dec - 10 Jan	Porter Airlines (Canada) Ltd
17 Dec - 02 Jan	WestJet
26 Dec - 02 Jan	FrenchBee
25 Dec - 01 Jan	British Airways
28 Dec - 04 Jan	Air Transat

Also check the deals for one-way flights from Montreal to Berlin 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 Berlin in December from $588

Return flights