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

Return flights

08 Dec - 15 Dec	British Airways
03 Dec - 10 Dec	FrenchBee
05 Dec - 12 Dec	Condor
04 Dec - 11 Dec	Brussels Airlines
10 Dec - 17 Dec	Condor
02 Dec - 09 Dec	SWISS
01 Dec - 08 Dec	SWISS
07 Dec - 14 Dec	SWISS
09 Dec - 16 Dec	SWISS
06 Dec - 13 Dec	Brussels Airlines
31 Dec - 07 Jan	SWISS
30 Dec - 06 Jan	Air France
29 Dec - 05 Jan	Air France
28 Dec - 04 Jan	KLM
26 Dec - 02 Jan	Condor
25 Dec - 01 Jan	SWISS
27 Dec - 03 Jan	Air Canada

Also check the deals for one-way flights from Montreal to Belgrade 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 Belgrade in December from 671€

Return flights