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

Return flights

05 Dec - 09 Dec	Jetstar
01 Dec - 08 Dec	Jetstar
01 Dec - 05 Dec	Jetstar
04 Dec - 08 Dec	Hong Kong Airlines
05 Dec - 09 Dec	Jetstar	direct
07 Dec - 11 Dec	Jetstar
23 Dec - 07 Jan	Scoot Tigerair
24 Dec - 06 Jan	Jetstar
07 Dec - 12 Dec	Air China
08 Dec - 13 Dec	Air China
07 Dec - 21 Dec	Air China
12 Dec - 16 Dec	Air China
23 Dec - 05 Jan	Scoot Tigerair
21 Dec - 04 Jan	Jetstar
24 Dec - 13 Jan	AirAsia X
23 Dec - 11 Jan	AirAsia X
24 Dec - 11 Jan	AirAsia X
29 Dec - 06 Jan	Jetstar
28 Dec - 06 Jan	Jetstar
24 Dec - 14 Jan	AirAsia X

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 $739

Return flights