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

Return flights

01 Dec - 29 Jan	VietJet Air
02 Dec - 20 Dec	Batik Air Malaysia
03 Dec - 31 Jan	Scoot
06 Dec - 30 Jan	Qantas
06 Dec - 31 Jan	Batik Air Malaysia
02 Dec - 06 Dec	Jetstar
10 Dec - 30 Jan	Jetstar
01 Dec - 31 Jan	Scoot
31 Dec - 28 Jan	Sichuan Airlines
30 Dec - 30 Jan	Hainan Airlines
11 Dec - 30 Jan	Batik Air Malaysia
08 Dec - 25 Jan	Virgin Australia
02 Dec - 31 Dec	Turkish Airlines
24 Dec - 31 Dec	AirAsia X
06 Dec - 21 Dec	Qatar Airways
15 Dec - 22 Dec	Qatar Airways
12 Dec - 29 Dec	Qatar Airways
19 Dec - 24 Dec	Qatar Airways
17 Dec - 18 Dec	Qatar Airways
18 Dec - 27 Dec	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 946€

Return flights