AirHint found the following cheapest one-way flights from Seoul (ICN) to Zagreb (ZAG) in September 2025 (see full year).

One-Way flights

17 Sep	China Eastern
14 Sep	China Eastern
18 Sep	Etihad Airways
12 Sep	Etihad Airways
11 Sep	T'way Air	direct
10 Sep	Scoot Tigerair
18 Sep	T'way Air	direct
25 Sep	T'way Air	direct
04 Sep	T'way Air	direct
20 Sep	T'way Air	direct

Also check the deals for return flights from Seoul 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 one-way flights from Seoul to Zagreb in September from 288€

One-Way flights