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

Return flights

16 Sep - 24 Sep	Lufthansa
09 Sep - 16 Sep	T'way Air
17 Sep - 24 Sep	Lufthansa
17 Sep - 28 Sep	Lufthansa
17 Sep - 27 Sep	Air France
12 Sep - 14 Sep	KLM
29 Sep - 18 Oct	KLM
26 Sep - 03 Oct	Singapore Airlines
29 Sep - 12 Oct	KLM
28 Sep - 07 Oct	Lufthansa
30 Sep - 06 Oct	KLM

Also check the deals for one-way flights from Hong Kong to Zagreb in September.

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 September from 596€

Return flights