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

Return flights

02 Sep - 09 Sep	T'way Air	direct
24 Sep - 13 Oct	Ryanair
16 Sep - 20 Sep	Ryanair
13 Sep - 23 Sep	Ryanair
30 Sep - 11 Oct	LOT
02 Sep - 16 Sep	T'way Air	direct
01 Sep - 16 Sep	Croatia Airlines
16 Sep - 08 Oct	LOT
16 Sep - 09 Oct	LOT
08 Sep - 22 Sep	Ryanair
30 Sep - 07 Oct	KLM
14 Sep - 18 Sep	Ryanair
16 Sep - 06 Oct	LOT
02 Sep - 13 Sep	Ryanair
04 Sep - 13 Sep	Ryanair
25 Sep - 14 Oct	Ryanair
30 Sep - 18 Oct	LOT
02 Sep - 19 Sep	Ryanair
16 Sep - 07 Oct	Lufthansa
15 Sep - 07 Oct	Air France

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

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Zagreb to Seoul in September from 567€

Return flights