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

Return flights

19 Aug - 26 Aug	LOT
13 Aug - 20 Aug	LOT
30 Aug - 09 Sep	LOT
30 Aug - 16 Sep	LOT
31 Aug - 14 Sep	Lufthansa
27 Aug - 10 Sep	Lufthansa
30 Aug - 10 Sep	Lufthansa
19 Aug - 02 Sep	LOT
19 Aug - 26 Aug	T'way Air	direct
19 Aug - 02 Sep	T'way Air	direct
13 Aug - 18 Aug	LOT
18 Aug - 23 Aug	LOT
19 Aug - 23 Aug	LOT
30 Aug - 13 Sep	LOT
07 Aug - 12 Aug	Ryanair
19 Aug - 23 Aug	T'way Air	direct
02 Aug - 12 Aug	Ryanair
13 Aug - 19 Aug	LOT
21 Aug - 04 Sep	Emirates
21 Aug - 04 Sep	T'way Air	direct

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 $765

Return flights