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

Return flights

05 Dec - 08 Dec	Batik Air Malaysia
04 Dec - 21 Dec	Jetstar	direct
02 Dec - 05 Dec	Jetstar
02 Dec - 17 Dec	Jetstar
01 Dec - 15 Dec	Jetstar
01 Dec - 14 Dec	Jetstar
01 Dec - 17 Dec	Jetstar
01 Dec - 08 Dec	Jetstar
02 Dec - 23 Dec	Jetstar
03 Dec - 10 Dec	Jetstar
14 Dec - 04 Jan	Jetstar	direct
14 Dec - 07 Jan	Jetstar	direct
30 Dec - 28 Jan	Scoot Tigerair
31 Dec - 10 Jan	Scoot Tigerair
30 Dec - 25 Jan	Scoot Tigerair
15 Dec - 15 Jan	Scoot Tigerair
15 Dec - 12 Jan	Scoot Tigerair
26 Dec - 14 Jan	Scoot Tigerair
26 Dec - 13 Jan	Scoot Tigerair
27 Dec - 14 Jan	Scoot Tigerair

Also check the deals for one-way flights from Sydney to Osaka 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 Osaka in December from $584

Return flights