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

Return flights

20 Aug - 27 Aug	VietJet Air
19 Aug - 26 Aug	China Southern
21 Aug - 28 Aug	China Southern
16 Aug - 24 Aug	Philippine Airlines
30 Aug - 07 Sep	Philippine Airlines
29 Aug - 04 Sep	Singapore Airlines
18 Aug - 27 Aug	Cathay Pacific
24 Aug - 30 Aug	China Southern
16 Aug - 23 Aug	China Southern

Also check the deals for one-way flights from Brisbane 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 Brisbane to Phnom-penh in August from 500€

Return flights