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

Return flights

02 Oct - 25 Oct	T'way Air	direct
02 Oct - 16 Oct	Lufthansa
02 Oct - 14 Oct	Lufthansa
02 Oct - 09 Oct	Lufthansa
24 Oct - 09 Nov	Ryanair
02 Oct - 11 Oct	T'way Air	direct
13 Oct - 24 Oct	Croatia Airlines
02 Oct - 18 Oct	T'way Air
04 Oct - 23 Oct	LOT
04 Oct - 25 Oct	LOT
25 Oct - 02 Nov	LOT
14 Oct - 25 Oct	LOT

Also check the deals for one-way flights from Zagreb to Seoul in October.

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 October from 538€

Return flights