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

Return flights

08 Aug - 15 Aug	Air Cambodia	direct
11 Aug - 18 Aug	Air Cambodia	direct
13 Aug - 20 Aug	Air Cambodia	direct
07 Aug - 14 Aug	Cambodia Airways	direct
12 Aug - 22 Aug	Cambodia Airways
04 Aug - 22 Aug	Air Cambodia	direct
06 Aug - 08 Aug	Air Cambodia	direct
12 Aug - 22 Aug	Cambodia Airways	direct
06 Aug - 07 Aug	Air Cambodia	direct
05 Aug - 06 Aug	Cambodia Airways	direct

Also check the deals for one-way flights from Hong Kong 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 Hong Kong to Phnom-penh in August from 153€

Return flights