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

Return flights

24 Dec - 17 Jan	Qatar Airways
23 Dec - 17 Jan	Qatar Airways
15 Dec - 15 Jan	Qatar Airways
19 Dec - 25 Jan	Qatar Airways
20 Dec - 11 Jan	Qatar Airways
16 Dec - 16 Jan	Qatar Airways
17 Dec - 02 Jan	Qatar Airways
19 Dec - 09 Jan	Qatar Airways
19 Dec - 16 Jan	Qatar Airways

Also check the deals for one-way flights from Sydney 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 Sydney to Tehran in December from 1556€

Return flights