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

Return flights

28 Aug - 01 Sep	Vietnam Airlines
22 Aug - 31 Aug	Vietnam Airlines
27 Aug - 30 Aug	Philippine Airlines
19 Aug - 22 Aug	Vietnam Airlines
13 Aug - 18 Aug	Vietnam Airlines
15 Aug - 18 Aug	Vietnam Airlines
14 Aug - 18 Aug	Vietnam Airlines
06 Aug - 11 Aug	Vietnam Airlines
01 Aug - 31 Aug	Vietnam Airlines
11 Aug - 13 Aug	Vietnam Airlines
04 Aug - 08 Aug	Philippine Airlines

Also check the deals for one-way flights from Busan 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 Busan to Phnom-penh in August from $239

Return flights