AirHint found the following cheapest return flights from Toronto (YYZ) to Zagreb (ZAG) in September 2025 (see full year).

Return flights

09 Sep - 16 Sep	WestJet
01 Sep - 11 Sep	Air Transat
10 Sep - 17 Sep	Air Transat
08 Sep - 25 Sep	Condor
15 Sep - 22 Sep	Porter Airlines (Canada) Ltd
01 Sep - 30 Sep	Air Transat
02 Sep - 17 Sep	TAP
12 Sep - 27 Sep	Air Transat
13 Sep - 04 Oct	Air Transat
02 Sep - 12 Sep	TAP
13 Sep - 28 Sep	Air Transat
09 Sep - 04 Oct	WestJet
02 Sep - 09 Oct	Air France
09 Sep - 03 Oct	Condor
06 Sep - 05 Oct	WestJet
06 Sep - 05 Oct	Air Transat	direct
09 Sep - 03 Oct	Air Transat	direct

Also check the deals for one-way flights from Toronto to Zagreb in September.

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 Toronto to Zagreb in September from $573

Return flights