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

Return flights

04 May - 11 May	British Airways
11 May - 18 May	British Airways
18 May - 25 May	British Airways
15 May - 22 May	British Airways
08 May - 15 May	British Airways
29 May - 05 Jun	British Airways
05 May - 27 May	Lufthansa
06 May - 29 May	Lufthansa
07 May - 14 May	Lufthansa
13 May - 20 May	Lufthansa
06 May - 13 May	Lufthansa
20 May - 10 Jun	Lufthansa
19 May - 16 Jun	Lufthansa
19 May - 02 Jun	Lufthansa
26 May - 02 Jun	Lufthansa
13 May - 03 Jun	Lufthansa
25 May - 01 Jun	Lufthansa
20 May - 04 Jun	Lufthansa
26 May - 01 Jun	Lufthansa
19 May - 09 Jun	Lufthansa

Also check the deals for one-way flights from Montreal to Zagreb 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 Zagreb in May from $575

Return flights