AirHint found the following cheapest return flights from Phnom-penh (PNH) to Perth (PER) in August 2025 (see full year).

Return flights

04 Aug - 10 Aug	AirAsia Cambodia
12 Aug - 24 Aug	AirAsia Cambodia
10 Aug - 24 Aug	AirAsia Cambodia
06 Aug - 10 Aug	AirAsia Cambodia
05 Aug - 10 Aug	AirAsia Cambodia
12 Aug - 29 Aug	AirAsia Cambodia
10 Aug - 29 Aug	AirAsia Cambodia
12 Aug - 31 Aug	AirAsia Cambodia
10 Aug - 31 Aug	AirAsia Cambodia
12 Aug - 20 Aug	AirAsia Cambodia
31 Aug - 06 Sep	AirAsia Cambodia
31 Aug - 11 Sep	AirAsia Cambodia
31 Aug - 08 Sep	AirAsia Cambodia
31 Aug - 18 Sep	AirAsia Cambodia

Also check the deals for one-way flights from Phnom-penh to Perth in August.

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 Phnom-penh to Perth in August from $419

Return flights