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

Return flights

04 Dec - 15 Dec	Hainan Airlines
04 Dec - 12 Dec	Jetstar
02 Dec - 22 Dec	AirAsia X
04 Dec - 07 Dec	Batik Air Malaysia
06 Dec - 16 Dec	Qantas
01 Dec - 21 Dec	AirAsia X
05 Dec - 29 Dec	AirAsia X
12 Dec - 24 Dec	Virgin Australia
11 Dec - 21 Jan	Virgin Australia
24 Dec - 30 Dec	Thai Airways
31 Dec - 28 Jan	AirAsia X
07 Dec - 25 Jan	AirAsia X
09 Dec - 12 Jan	AirAsia X
06 Dec - 24 Jan	Qantas
14 Dec - 18 Jan	Batik Air Malaysia
14 Dec - 19 Dec	AirAsia X
26 Dec - 31 Jan	Scoot
20 Dec - 18 Jan	Thai Airways
30 Dec - 09 Jan	AirAsia X
16 Dec - 15 Jan	Jetstar

Also check the deals for one-way flights from Sydney to Istanbul 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 Istanbul in December from 774€

Return flights