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

One-Way flights

04 Dec	Jetstar	direct
02 Dec	Jetstar	direct
01 Dec	Jetstar
15 Dec	Virgin Australia
06 Dec	Jetstar	direct
26 Dec	Xiamen Airlines
03 Dec	Jetstar
11 Dec	Jetstar	direct
14 Dec	Jetstar	direct
09 Dec	Jetstar	direct

Also check the deals for return 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 one-way flights from Sydney to Osaka in December from $366

One-Way flights