AirHint found the following cheapest return flights from Montreal (YUL) to Zagreb (ZAG) in October 2025 (see full year).

Return flights

02 Oct - 09 Oct	Air Transat
09 Oct - 16 Oct	Air Transat
01 Oct - 08 Oct	Air France
05 Oct - 12 Oct	Air France
07 Oct - 14 Oct	Air France
19 Oct - 26 Oct	Air France
04 Oct - 11 Oct	Air France
06 Oct - 13 Oct	Air France
08 Oct - 15 Oct	Air France
12 Oct - 19 Oct	Air France
27 Oct - 03 Nov	Air Canada
29 Oct - 05 Nov	Lufthansa
30 Oct - 06 Nov	Air Transat
28 Oct - 04 Nov	Air Transat
25 Oct - 01 Nov	KLM
26 Oct - 14 Nov	Lufthansa
26 Oct - 02 Nov	Lufthansa
31 Oct - 07 Nov	Condor

Also check the deals for one-way flights from Montreal to Zagreb in October.

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 October from 558€

Return flights