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

Return flights

21 Oct - 25 Oct	Ryanair
18 Oct - 25 Oct	Ryanair
19 Oct - 25 Oct	Ryanair
14 Oct - 23 Oct	Ryanair
02 Oct - 21 Oct	Ryanair
16 Oct - 25 Oct	Ryanair
16 Oct - 23 Oct	Ryanair
13 Oct - 21 Oct	Ryanair
02 Oct - 25 Oct	Ryanair
02 Oct - 23 Oct	Ryanair
24 Oct - 02 Nov	Ryanair
24 Oct - 04 Nov	Ryanair
30 Oct - 02 Nov	Ryanair
25 Oct - 05 Nov	LOT
23 Oct - 03 Nov	Ryanair

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 $597

Return flights