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

Return flights

03 Dec - 10 Dec	Air France
10 Dec - 15 Dec	Lufthansa
10 Dec - 14 Dec	Lufthansa
06 Dec - 14 Dec	KLM
19 Dec - 31 Dec	Lufthansa
25 Dec - 31 Dec	KLM
25 Dec - 30 Dec	Etihad Airways
31 Dec - 07 Jan	KLM
20 Dec - 08 Jan	Lufthansa
20 Dec - 28 Dec	Etihad Airways
20 Dec - 31 Dec	Lufthansa
25 Dec - 03 Jan	Etihad Airways
24 Dec - 03 Jan	Turkish Airlines
20 Dec - 02 Jan	Finnair
19 Dec - 27 Dec	Etihad Airways
20 Dec - 01 Jan	Lufthansa
20 Dec - 03 Jan	Turkish Airlines
19 Dec - 01 Jan	Scandinavian Airlines
27 Dec - 02 Jan	KLM
24 Dec - 04 Jan	Air France

Also check the deals for one-way flights from Seoul to Dublin 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 Dublin in December from $585

Return flights