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

Return flights

04 Dec - 11 Dec	Jetstar
03 Dec - 10 Dec	Jetstar
02 Dec - 09 Dec	Jetstar
02 Dec - 10 Dec	Jetstar	direct
07 Dec - 14 Dec	Jetstar
02 Dec - 12 Dec	Cebu Pacific
03 Dec - 07 Dec	Cebu Pacific
02 Dec - 15 Dec	Jetstar	direct
01 Dec - 14 Dec	Cebu Pacific
02 Dec - 11 Dec	Cebu Pacific
15 Dec - 15 Jan	VietJet Air
30 Dec - 09 Jan	T'way Air
30 Dec - 20 Jan	Air China
30 Dec - 14 Jan	Scoot
24 Dec - 02 Jan	VietJet Air
04 Dec - 13 Jan	Cebu Pacific
28 Dec - 18 Jan	Air China
27 Dec - 20 Jan	Air China
31 Dec - 29 Jan	Scoot
31 Dec - 20 Jan	Scoot

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 $587

Return flights