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

Return flights

10 Sep - 24 Sep	Porter Airlines (Canada) Ltd
12 Sep - 13 Oct	Air Transat
15 Sep - 16 Oct	Porter Airlines (Canada) Ltd
13 Sep - 26 Sep	Air Transat
07 Sep - 21 Sep	WestJet
12 Sep - 19 Sep	Air Transat
01 Sep - 14 Sep	Air Transat
23 Sep - 30 Sep	Air Transat
22 Sep - 20 Oct	Turkish Airlines
27 Sep - 21 Oct	Air Transat
04 Sep - 03 Oct	Qatar Airways
24 Sep - 24 Oct	Turkish Airlines
24 Sep - 22 Oct	Turkish Airlines
24 Sep - 06 Oct	Turkish Airlines
02 Sep - 14 Sep	Air Transat
13 Sep - 31 Oct	Qatar Airways
12 Sep - 04 Oct	Air Transat
12 Sep - 30 Sep	Air Transat
01 Sep - 30 Sep	Emirates
03 Sep - 14 Sep	WestJet

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 880€

Return flights