AirHint found the following cheapest one-way flights from Beijing (PEK) to Phnom-penh (PNH) in August 2025 (see full year).

One-Way flights

05 Aug	Shenzhen Airlines
30 Aug	Air China	direct
31 Aug	Air China	direct
28 Aug	Air China	direct
28 Aug	Cathay Pacific
02 Aug	Vietnam Airlines
04 Aug	Vietnam Airlines
02 Aug	Air China	direct
05 Aug	Air China	direct

Also check the deals for return flights from Beijing 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 one-way flights from Beijing to Phnom-penh in August from $149

One-Way flights