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

Return flights

04 Dec - 14 Dec	Alaska Airlines
03 Dec - 24 Dec	Qatar Airways
08 Dec - 23 Dec	Qatar Airways
03 Dec - 13 Dec	Qatar Airways
02 Dec - 05 Dec	Qatar Airways
05 Dec - 15 Dec	Qatar Airways
02 Dec - 17 Dec	Qatar Airways
01 Dec - 11 Dec	Qatar Airways
06 Dec - 16 Dec	Qatar Airways
24 Dec - 13 Jan	Alaska Airlines
01 Dec - 06 Jan	Qatar Airways
05 Dec - 01 Jan	Qatar Airways
23 Dec - 10 Jan	Alaska Airlines
25 Dec - 08 Jan	Alaska Airlines
05 Dec - 10 Jan	Qatar Airways
24 Dec - 07 Jan	Qatar Airways
18 Dec - 25 Dec	Alaska Airlines
29 Dec - 11 Jan	Qatar Airways
14 Dec - 18 Jan	Qatar Airways
20 Dec - 20 Jan	Qatar Airways

Also check the deals for one-way flights from Ontario 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 Ontario to Tehran in December from $1765

Return flights