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

Return flights

16 Dec - 18 Jan	Sichuan Airlines
11 Dec - 23 Jan	Sichuan Airlines
04 Dec - 18 Jan	Sichuan Airlines
10 Dec - 14 Jan	Air China
02 Dec - 09 Dec	Air China
12 Dec - 18 Jan	Air China
01 Dec - 08 Dec	Air China
07 Dec - 16 Jan	Air China
02 Dec - 16 Jan	Air China
10 Dec - 15 Jan	Air China
03 Dec - 10 Dec	Air China
01 Dec - 31 Dec	Air China
15 Dec - 18 Jan	Wizz Air
14 Dec - 17 Jan	Ryanair
01 Dec - 11 Dec	Air China
09 Dec - 16 Dec	Air China
08 Dec - 14 Dec	Air China
08 Dec - 15 Dec	Air China
10 Dec - 16 Dec	Air China
07 Dec - 14 Dec	Sichuan Airlines

Also check the deals for one-way flights from Rome 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 Rome to Sydney in December from $717

Return flights