AirHint found the following cheapest return flights from Toronto (YTZ) to Tehran (IKA) in September 2025 (see full year).

Return flights

23 Sep - 21 Oct	Porter Airlines (Canada) Ltd
23 Sep - 14 Oct	Porter Airlines (Canada) Ltd
23 Sep - 17 Oct	Porter Airlines (Canada) Ltd
28 Sep - 26 Oct	Porter Airlines (Canada) Ltd
25 Sep - 28 Sep	Emirates
15 Sep - 16 Oct	Emirates
29 Sep - 21 Oct	Emirates
30 Sep - 20 Oct	Emirates
29 Sep - 20 Oct	Emirates
23 Sep - 16 Oct	Emirates
15 Sep - 09 Oct	Emirates
26 Sep - 29 Sep	Porter Airlines (Canada) Ltd
22 Sep - 30 Sep	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Toronto to Tehran 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 Tehran in September from $1368

Return flights