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

Return flights

02 Aug - 16 Aug	Scoot Tigerair
14 Aug - 18 Aug	VietJet Air
18 Aug - 21 Aug	Scoot Tigerair
13 Aug - 23 Aug	VietJet Air
10 Aug - 31 Aug	AirAsia X
30 Aug - 06 Sep	Scoot Tigerair
25 Aug - 28 Aug	Scoot Tigerair
14 Aug - 19 Aug	AirAsia X
21 Aug - 02 Sep	VietJet Air
18 Aug - 25 Aug	VietJet Air
20 Aug - 01 Sep	VietJet Air
13 Aug - 17 Aug	VietJet Air
07 Aug - 10 Aug	VietJet Air
01 Aug - 20 Sep	Batik Air Malaysia
29 Aug - 05 Sep	Philippine Airlines
14 Aug - 04 Sep	AirAsia X
19 Aug - 11 Sep	Singapore Airlines
15 Aug - 04 Sep	AirAsia X
22 Aug - 11 Sep	China Southern
28 Aug - 04 Sep	China Southern

Also check the deals for one-way flights from Melbourne to Phnom-penh 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 Melbourne to Phnom-penh in August from $420

Return flights