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

Return flights

05 Dec - 07 Dec	AirAsia X
09 Dec - 11 Dec	AirAsia X
09 Dec - 12 Dec	AirAsia X
05 Dec - 11 Dec	AirAsia X
05 Dec - 12 Dec	AirAsia X
09 Dec - 14 Dec	AirAsia X
05 Dec - 14 Dec	AirAsia X
09 Dec - 27 Dec	AirAsia X
09 Dec - 26 Dec	AirAsia X
09 Dec - 25 Dec	AirAsia X
26 Dec - 02 Jan	Air China
29 Dec - 26 Jan	Air China
29 Dec - 24 Jan	Air China
28 Dec - 29 Jan	Air China
27 Dec - 18 Jan	Air China
26 Dec - 16 Jan	Air China
18 Dec - 13 Jan	Virgin Australia
28 Dec - 14 Jan	AirAsia X
28 Dec - 13 Jan	AirAsia X
29 Dec - 14 Jan	AirAsia X

Also check the deals for one-way flights from Sydney to Shenzhen 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 Shenzhen in December from 644€

Return flights