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

Return flights

11 Dec - 22 Dec	Virgin Australia
10 Dec - 21 Dec	Jetstar
10 Dec - 22 Dec	Jetstar
15 Dec - 19 Dec	Scoot
11 Dec - 17 Dec	Scoot
16 Dec - 21 Dec	VietJet Air
10 Dec - 15 Dec	Scoot
30 Dec - 11 Jan	AirAsia X
29 Dec - 04 Jan	Air China
13 Dec - 17 Dec	Scoot
31 Dec - 20 Jan	AirAsia X
28 Dec - 25 Jan	Air China
14 Dec - 18 Dec	AirAsia X
27 Dec - 07 Jan	VietJet Air
26 Dec - 30 Dec	China Southern
28 Dec - 08 Jan	AirAsia X
27 Dec - 05 Jan	VietJet Air
26 Dec - 04 Jan	Air China
25 Dec - 03 Jan	VietJet Air
30 Dec - 14 Jan	AirAsia X

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 $739

Return flights