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

Return flights

09 Sep - 16 Sep	Scoot Tigerair
08 Sep - 15 Sep	China Southern
08 Sep - 16 Sep	AirAsia X
08 Sep - 13 Sep	AirAsia X
08 Sep - 28 Sep	AirAsia X
08 Sep - 27 Sep	AirAsia X
08 Sep - 18 Sep	AirAsia X
15 Sep - 28 Sep	AirAsia X
15 Sep - 27 Sep	AirAsia X
17 Sep - 28 Sep	AirAsia X
24 Sep - 11 Oct	AirAsia X
30 Sep - 10 Oct	Scoot Tigerair
24 Sep - 09 Oct	AirAsia X
17 Sep - 07 Oct	AirAsia X
24 Sep - 07 Oct	AirAsia X
28 Sep - 09 Oct	Hong Kong Airlines
29 Sep - 09 Oct	Hong Kong Airlines
30 Sep - 07 Oct	Scoot Tigerair
29 Sep - 08 Oct	Hong Kong Airlines

Also check the deals for one-way flights from Hangzhou to Sydney 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 Hangzhou to Sydney in September from 422€

Return flights