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

Return flights

31 Jul - 07 Aug	Cambodia Airways	direct
30 Jul - 06 Aug	Air Cambodia
30 Jul - 06 Aug	Cathay Pacific	direct
28 Jul - 01 Aug	Philippine Airlines
27 Jul - 29 Jul	HK Express
28 Jul - 01 Aug	Air Cambodia	direct
27 Jul - 29 Jul	Cathay Pacific	direct
28 Jul - 28 Jul	Cathay Pacific

Also check the deals for one-way flights from Hong Kong to Phnom-penh in July.

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 July from 183€

Return flights