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

Return flights

11 Dec - 14 Dec	Scoot
08 Dec - 11 Dec	Scoot
09 Dec - 12 Dec	Scoot
07 Dec - 14 Dec	Jetstar
08 Dec - 15 Dec	Scoot
07 Dec - 17 Dec	VietJet Air
15 Dec - 16 Dec	Scoot
11 Dec - 18 Dec	Scoot
06 Dec - 12 Dec	Scoot
06 Dec - 24 Dec	VietJet Air
08 Dec - 17 Jan	Scoot
15 Dec - 06 Jan	Scoot
09 Dec - 06 Jan	Scoot
29 Dec - 05 Jan	T'way Air
28 Dec - 06 Jan	Scoot
28 Dec - 12 Jan	Scoot
29 Dec - 13 Jan	Scoot
28 Dec - 05 Jan	Scoot
30 Dec - 14 Jan	Scoot
29 Dec - 15 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 639€

Return flights