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

Return flights

03 Sep - 10 Sep	VietJet Air
18 Sep - 20 Oct	Turkish Airlines
02 Sep - 09 Sep	Qatar Airways
05 Sep - 12 Sep	Turkish Airlines
28 Sep - 13 Oct	Turkish Airlines
23 Sep - 07 Oct	Turkish Airlines
10 Sep - 12 Oct	Turkish Airlines
15 Sep - 15 Oct	Qatar Airways
14 Sep - 15 Oct	Qatar Airways
05 Sep - 13 Sep	Qatar Airways
08 Sep - 20 Sep	Qatar Airways
26 Sep - 16 Oct	Qatar Airways
13 Sep - 28 Sep	Qatar Airways
14 Sep - 09 Oct	Qatar Airways
20 Sep - 26 Sep	Emirates
14 Sep - 10 Oct	Emirates

Also check the deals for one-way flights from Sydney to Tehran in September.

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 September from $1194

Return flights