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

Return flights

25 Sep - 18 Oct	Condor
29 Sep - 25 Oct	Condor
23 Sep - 14 Oct	Condor
15 Sep - 19 Sep	Condor
23 Sep - 18 Oct	Condor
18 Sep - 11 Oct	Icelandair
27 Sep - 29 Oct	Condor
08 Sep - 14 Sep	WestJet
23 Sep - 07 Oct	Condor
23 Sep - 01 Oct	Icelandair
18 Sep - 22 Sep	Icelandair
20 Sep - 24 Sep	WestJet
23 Sep - 14 Oct	Air Canada	direct
16 Sep - 25 Sep	Condor
22 Sep - 30 Sep	Air Transat
08 Sep - 23 Sep	WestJet
07 Sep - 17 Sep	Condor
19 Sep - 24 Sep	Air Transat
13 Sep - 15 Oct	Air Canada
23 Sep - 27 Sep	Condor

Also check the deals for one-way flights from Toronto to Zurich 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 Zurich in September from $545

Return flights