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

Return flights

01 Aug - 16 Aug	China Southern
02 Aug - 16 Aug	China Southern
16 Aug - 23 Aug	China Southern
17 Aug - 23 Aug	China Southern
17 Aug - 22 Aug	China Southern
05 Aug - 19 Aug	China Southern
10 Aug - 19 Aug	China Southern
13 Aug - 17 Sep	China Southern
13 Aug - 16 Sep	China Southern
06 Aug - 04 Sep	China Southern
14 Aug - 11 Sep	China Southern
20 Aug - 23 Sep	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.

Book a cheap hotel in Phnom-penh

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Cheapest return flights from Brisbane to Phnom-penh in August from $596

Return flights