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

Return flights

19 Sep - 27 Sep	T'way Air
17 Sep - 23 Sep	T'way Air
20 Sep - 27 Sep	T'way Air
06 Sep - 13 Sep	T'way Air
30 Sep - 07 Oct	Singapore Airlines
16 Sep - 23 Sep	Singapore Airlines
23 Sep - 27 Sep	KLM
27 Sep - 04 Oct	Singapore Airlines
11 Sep - 21 Sep	Singapore Airlines
02 Sep - 11 Sep	KLM

Also check the deals for one-way flights from Osaka 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 Osaka to Zagreb in September from 644€

Return flights