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

Return flights

29 Jul - 17 Aug	AirAsia
24 Jul - 10 Aug	AirAsia
29 Jul - 18 Aug	AirAsia
28 Jul - 17 Aug	AirAsia
29 Jul - 10 Aug	AirAsia
28 Jul - 10 Aug	AirAsia
28 Jul - 18 Aug	AirAsia
25 Jul - 17 Aug	Singapore Airlines
25 Jul - 10 Aug	AirAsia
28 Jul - 16 Aug	Singapore Airlines
16 Jul - 31 Jul	AirAsia
24 Jul - 31 Jul	AirAsia
16 Jul - 29 Jul	AirAsia
16 Jul - 28 Jul	AirAsia
13 Jul - 31 Jul	AirAsia
29 Jul - 31 Jul	AirAsia
28 Jul - 31 Jul	AirAsia
24 Jul - 29 Jul	AirAsia
24 Jul - 28 Jul	AirAsia
13 Jul - 29 Jul	AirAsia

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

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 Perth to Phnom-penh in July from $388

Return flights