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

Return flights

08 Sep - 11 Sep	Scoot
09 Sep - 12 Sep	Scoot
10 Sep - 24 Sep	Scoot
07 Sep - 14 Sep	Scoot
09 Sep - 15 Sep	Scoot
06 Sep - 15 Sep	Scoot
06 Sep - 24 Sep	Scoot
06 Sep - 14 Sep	Scoot
06 Sep - 17 Sep	Scoot
06 Sep - 10 Sep	Scoot
09 Sep - 28 Oct	Scoot
09 Sep - 01 Oct	Scoot
09 Sep - 24 Oct	Scoot
24 Sep - 01 Oct	Scoot
23 Sep - 06 Oct	AirAsia X
23 Sep - 05 Oct	China Southern
30 Sep - 31 Oct	Hong Kong Airlines
22 Sep - 06 Oct	Scoot
17 Sep - 15 Oct	Scoot
13 Sep - 01 Oct	Scoot

Also check the deals for one-way flights from Sydney to Osaka in September.

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 September from $447

Return flights