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

Return flights

25 Aug - 24 Sep	WestJet
24 Aug - 24 Sep	WestJet
26 Aug - 24 Sep	WestJet
20 Aug - 10 Sep	TAP
24 Aug - 22 Sep	WestJet
22 Aug - 11 Sep	TAP
25 Aug - 10 Sep	WestJet
26 Aug - 13 Sep	WestJet
25 Aug - 13 Sep	WestJet
26 Aug - 06 Sep	WestJet
07 Aug - 30 Aug	WestJet
13 Aug - 26 Aug	Porter Airlines (Canada) Ltd
05 Aug - 26 Aug	TAP
08 Aug - 24 Aug	TAP
08 Aug - 31 Aug	Air Canada
03 Aug - 23 Aug	TAP
03 Aug - 31 Aug	TAP
24 Aug - 31 Aug	WestJet
01 Aug - 17 Aug	Air Canada
04 Aug - 11 Aug	WestJet

Also check the deals for one-way flights from Toronto to Tehran in August.

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 August from 820€

Return flights