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

Return flights

16 Oct - 13 Nov	Porter Airlines (Canada) Ltd
10 Oct - 18 Oct	British Airways
11 Oct - 18 Oct	WestJet
08 Oct - 22 Oct	Air Transat
06 Oct - 25 Oct	Turkish Airlines
05 Oct - 19 Oct	Air Transat
09 Oct - 18 Oct	Turkish Airlines
12 Oct - 30 Oct	Turkish Airlines
02 Oct - 10 Oct	Turkish Airlines
15 Oct - 09 Nov	Turkish Airlines
02 Oct - 31 Oct	Turkish Airlines
03 Oct - 31 Oct	Turkish Airlines
01 Oct - 30 Nov	Turkish Airlines
31 Oct - 30 Nov	Turkish Airlines

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

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 October from 898€

Return flights