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

Return flights

11 Aug - 09 Sep	Lufthansa
04 Aug - 09 Sep	Lufthansa
12 Aug - 26 Aug	T'way Air	direct
11 Aug - 19 Aug	Lufthansa
26 Aug - 04 Sep	T'way Air	direct
23 Aug - 04 Sep	Lufthansa
27 Aug - 04 Sep	China Southern
12 Aug - 19 Aug	LOT
12 Aug - 19 Aug	T'way Air	direct
12 Aug - 21 Aug	T'way Air	direct
12 Aug - 28 Aug	Lufthansa
10 Aug - 18 Aug	LOT
05 Aug - 26 Aug	LOT
05 Aug - 19 Aug	LOT
07 Aug - 19 Aug	Lufthansa
26 Aug - 09 Sep	T'way Air	direct
28 Aug - 11 Sep	T'way Air	direct
26 Aug - 03 Sep	LOT
26 Aug - 08 Sep	LOT
26 Aug - 07 Sep	LOT

Also check the deals for one-way flights from Seoul 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 Seoul to Zagreb in August from $594

Return flights