AirHint found the following cheapest return flights from Montreal (YUL) to Belgrade (BEG) in May 2026 (see full year).

Return flights

04 May - 11 May	SWISS
06 May - 13 May	Air Canada
05 May - 12 May	Air Canada
12 May - 19 May	SWISS
20 May - 27 May	SWISS
13 May - 20 May	SWISS
19 May - 26 May	SWISS
18 May - 25 May	Air Canada
11 May - 18 May	Air Canada
03 May - 10 May	SWISS
26 May - 02 Jun	SWISS
27 May - 03 Jun	SWISS
25 May - 01 Jun	Air Canada
28 May - 04 Jun	SWISS
30 May - 06 Jun	SWISS
31 May - 07 Jun	Lufthansa
29 May - 05 Jun	Air Canada

Also check the deals for one-way flights from Montreal to Belgrade in May.

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 May from $874

Return flights