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

Return flights

31 Dec - 10 Jan	Japan Airlines
30 Dec - 03 Jan	Japan Airlines
31 Dec - 07 Jan	Malaysia Airlines
31 Dec - 04 Jan	Japan Airlines
27 Dec - 04 Jan	Japan Airlines
31 Dec - 02 Jan	Malaysia Airlines
31 Dec - 03 Jan	Malaysia Airlines
28 Dec - 01 Jan	Japan Airlines
29 Dec - 08 Jan	Japan Airlines
29 Dec - 05 Jan	Japan Airlines

Also check the deals for one-way flights from Osaka 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 Osaka to Sydney in December from 1162€

Return flights