AirHint found the following cheapest return flights from Seoul (ICN) to Zagreb (ZAG) in May 2026 (see full year).

Return flights

13 May - 28 May	Lufthansa
19 May - 27 May	Lufthansa
12 May - 19 May	Lufthansa
21 May - 31 May	Lufthansa
13 May - 20 May	Lufthansa
07 May - 12 May	Lufthansa
26 May - 02 Jun	Lufthansa
26 May - 09 Jun	Lufthansa
11 May - 19 May	Lufthansa
12 May - 20 May	Lufthansa
29 May - 02 Jun	Lufthansa
12 May - 15 May	Lufthansa
12 May - 21 May	LOT
30 May - 08 Jun	Lufthansa
23 May - 02 Jun	Lufthansa
29 May - 05 Jun	Lufthansa
23 May - 06 Jun	LOT
29 May - 07 Jun	Lufthansa
23 May - 01 Jun	Lufthansa
23 May - 04 Jun	Lufthansa

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

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 May from $621

Return flights