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

Return flights

31 Dec - 18 Jan	SWISS
29 Dec - 17 Jan	Air Canada
29 Dec - 18 Jan	Lufthansa
08 Dec - 18 Jan	SWISS
08 Dec - 15 Dec	SWISS
28 Dec - 12 Jan	Lufthansa
29 Dec - 12 Jan	Lufthansa
09 Dec - 18 Jan	Lufthansa
09 Dec - 16 Dec	SWISS
30 Dec - 18 Jan	British Airways
30 Dec - 17 Jan	Air Canada
11 Dec - 18 Dec	Porter Airlines (Canada) Ltd
29 Dec - 10 Jan	Azores Airlines
10 Dec - 17 Dec	Air France
11 Dec - 19 Dec	Porter Airlines (Canada) Ltd
13 Dec - 20 Dec	Azores Airlines
14 Dec - 21 Dec	Porter Airlines (Canada) Ltd
12 Dec - 19 Dec	Air France
09 Dec - 31 Dec	Air Canada
15 Dec - 22 Dec	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Montreal to Bucharest 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 Bucharest in December from 534€

Return flights