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

Return flights

04 Dec - 11 Dec	Lufthansa
05 Dec - 09 Dec	Lufthansa
06 Dec - 09 Dec	Lufthansa
02 Dec - 09 Dec	Lufthansa
06 Dec - 11 Dec	Lufthansa
02 Dec - 11 Dec	Lufthansa
16 Dec - 31 Dec	LOT
17 Dec - 07 Jan	Lufthansa
03 Dec - 11 Dec	Turkish Airlines
11 Dec - 18 Dec	Turkish Airlines
03 Dec - 10 Dec	Turkish Airlines
25 Dec - 07 Jan	KLM
20 Dec - 05 Jan	LOT
23 Dec - 05 Jan	LOT
19 Dec - 09 Jan	Lufthansa
23 Dec - 09 Jan	Air France
25 Dec - 01 Jan	KLM
26 Dec - 03 Jan	Lufthansa
26 Dec - 04 Jan	Lufthansa
28 Dec - 05 Jan	Lufthansa

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.

Book a cheap hotel in Zagreb

Cheap car rent in Zagreb

Cheapest return flights from Seoul to Zagreb in December from $617

Return flights