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

Return flights

02 Dec - 14 Dec	Batik Air Malaysia
03 Dec - 10 Dec	Batik Air Malaysia
03 Dec - 12 Dec	Jetstar
09 Dec - 14 Dec	Batik Air Malaysia
08 Dec - 13 Dec	Jetstar
01 Dec - 13 Dec	Batik Air Malaysia
02 Dec - 14 Dec	Jetstar	direct
02 Dec - 12 Dec	Cebu Pacific
02 Dec - 15 Dec	Jetstar	direct
01 Dec - 14 Dec	Cebu Pacific
01 Dec - 01 Jan	China Airlines
14 Dec - 15 Jan	VietJet Air
15 Dec - 05 Jan	VietJet Air
30 Dec - 18 Jan	Air China
29 Dec - 09 Jan	Virgin Australia
30 Dec - 11 Jan	T'way Air
31 Dec - 20 Jan	Scoot
25 Dec - 07 Jan	Air China
23 Dec - 11 Jan	VietJet Air
26 Dec - 01 Jan	Air China

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.

Book a cheap hotel in Osaka

Cheap car rent in Osaka

Cheapest return flights from Sydney to Osaka in December from $546

Return flights