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

Return flights

02 Dec - 12 Dec	VietJet Air
04 Dec - 15 Dec	Batik Air Malaysia
02 Dec - 10 Dec	VietJet Air
07 Dec - 18 Dec	Virgin Australia
07 Dec - 14 Dec	Virgin Australia
06 Dec - 17 Dec	Virgin Australia
02 Dec - 14 Dec	VietJet Air
01 Dec - 11 Dec	Scoot
01 Dec - 14 Dec	VietJet Air
02 Dec - 08 Dec	VietJet Air
30 Dec - 12 Jan	Scoot
30 Dec - 19 Jan	Scoot
07 Dec - 29 Jan	Jetstar
27 Dec - 05 Jan	Xiamen Airlines
30 Dec - 05 Jan	Air China
29 Dec - 06 Jan	Air China
29 Dec - 05 Jan	Air China
25 Dec - 02 Jan	VietJet Air
20 Dec - 01 Jan	Thai Airways
02 Dec - 20 Jan	China Southern

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 497€

Return flights