AirHint found the following cheapest return flights from Hong Kong (HKG) to Zagreb (ZAG) in August 2025 (see full year).

Return flights

28 Aug - 04 Sep	T'way Air
20 Aug - 27 Aug	SWISS
08 Aug - 17 Aug	Finnair
24 Aug - 31 Aug	Sichuan Airlines
29 Aug - 06 Sep	SWISS
09 Aug - 23 Aug	Air France
09 Aug - 17 Aug	Turkish Airlines
02 Aug - 15 Aug	Turkish Airlines
11 Aug - 23 Aug	Turkish Airlines
13 Aug - 27 Aug	Turkish Airlines
02 Aug - 08 Aug	Sichuan Airlines
15 Aug - 25 Aug	Turkish Airlines

Also check the deals for one-way flights from Hong Kong to Zagreb 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 Zagreb in August from 655€

Return flights