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

Return flights

26 Aug - 11 Sep	LOT
19 Aug - 26 Aug	LOT
31 Aug - 14 Sep	LOT
21 Aug - 04 Sep	Lufthansa
29 Aug - 11 Sep	KLM
26 Aug - 02 Sep	Lufthansa
30 Aug - 11 Sep	Lufthansa
19 Aug - 02 Sep	LOT
26 Aug - 11 Sep	T'way Air	direct
23 Aug - 06 Sep	LOT
19 Aug - 26 Aug	T'way Air	direct
19 Aug - 02 Sep	T'way Air	direct
23 Aug - 30 Aug	LOT
18 Aug - 28 Aug	LOT
05 Aug - 19 Aug	Ryanair
16 Aug - 26 Aug	Norwegian Air Sweden AOC
07 Aug - 21 Aug	Ryanair
07 Aug - 23 Aug	Ryanair
09 Aug - 28 Aug	Norwegian Air Sweden AOC
06 Aug - 20 Aug	Emirates

Also check the deals for one-way flights from Zagreb to Seoul 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 Zagreb to Seoul in August from 667€

Return flights