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

Return flights

23 Dec - 10 Jan	Air China
23 Dec - 08 Jan	Air China
23 Dec - 09 Jan	Air China
26 Dec - 08 Jan	China Eastern
28 Dec - 29 Jan	Hainan Airlines
23 Dec - 05 Jan	China Eastern
07 Dec - 09 Dec	Hainan Airlines
22 Dec - 04 Jan	Air China
17 Dec - 01 Jan	Air China
09 Dec - 16 Dec	Air China
19 Dec - 28 Dec	Hainan Airlines
28 Dec - 29 Jan	China Southern	direct
19 Dec - 01 Jan	Hainan Airlines
24 Dec - 31 Dec	AirAsia
23 Dec - 30 Dec	AirAsia
19 Dec - 21 Dec	Air China

Also check the deals for one-way flights from Shenzhen to Sydney 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 Shenzhen to Sydney in December from $416

Return flights