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

Return flights

02 Dec - 11 Dec	Lufthansa
02 Dec - 09 Dec	Lufthansa
04 Dec - 11 Dec	Lufthansa
05 Dec - 12 Dec	Lufthansa
04 Dec - 07 Dec	Lufthansa
08 Dec - 14 Dec	Lufthansa
02 Dec - 13 Dec	LOT
01 Dec - 11 Dec	Lufthansa
01 Dec - 06 Dec	Lufthansa
01 Dec - 08 Dec	LOT
29 Dec - 07 Jan	LOT
28 Dec - 04 Jan	Lufthansa
30 Dec - 09 Jan	LOT
18 Dec - 05 Jan	Air China
20 Dec - 06 Jan	Lufthansa
20 Dec - 05 Jan	Air China
27 Dec - 04 Jan	LOT
19 Dec - 05 Jan	Turkish Airlines
26 Dec - 01 Jan	Turkish Airlines
24 Dec - 02 Jan	LOT

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

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 Seoul to Zagreb in December from 513€

Return flights