AirHint found the following cheapest return flights from Hong Kong (HKG) to Perth (PER) in September 2025 (see full year).

Return flights

17 Sep - 31 Oct	AirAsia
23 Sep - 14 Oct	AirAsia
03 Sep - 08 Sep	AirAsia
06 Sep - 11 Sep	AirAsia
03 Sep - 10 Sep	AirAsia
09 Sep - 16 Sep	AirAsia
02 Sep - 06 Sep	AirAsia
03 Sep - 07 Sep	AirAsia
02 Sep - 07 Sep	AirAsia
06 Sep - 08 Sep	AirAsia
06 Sep - 14 Sep	AirAsia
03 Sep - 14 Sep	AirAsia
23 Sep - 01 Oct	AirAsia
24 Sep - 14 Oct	AirAsia
29 Sep - 06 Oct	HK Express
23 Sep - 13 Oct	AirAsia
27 Sep - 11 Oct	HK Express
26 Sep - 11 Oct	Thai Lion Air
23 Sep - 03 Oct	AirAsia
23 Sep - 02 Oct	AirAsia

Also check the deals for one-way flights from Hong Kong to Perth 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 Hong Kong to Perth in September from 255€

Return flights