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

Return flights

31 Dec - 21 Jan	WestJet
04 Dec - 13 Dec	Air Transat
02 Dec - 09 Dec	Air Transat
02 Dec - 14 Jan	Air Transat
08 Dec - 15 Dec	Aer Lingus
01 Dec - 14 Jan	Air Transat
03 Dec - 12 Dec	Porter Airlines (Canada) Ltd
10 Dec - 25 Jan	Air Transat
28 Dec - 18 Jan	WestJet
30 Dec - 21 Jan	Flair Airlines
05 Dec - 12 Dec	Air Transat
05 Dec - 17 Jan	Air Transat
28 Dec - 19 Jan	WestJet
28 Dec - 17 Jan	WestJet
03 Dec - 10 Dec	Lufthansa
28 Dec - 15 Jan	WestJet
01 Dec - 08 Dec	Porter Airlines (Canada) Ltd
06 Dec - 13 Dec	Air Transat
09 Dec - 16 Dec	Air Transat
05 Dec - 26 Dec	Air Transat

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

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 December from 790€

Return flights