AirHint found the following cheapest return flights from Dublin (DUB) to Seoul (ICN) in April 2026 (see full year).

Return flights

16 Apr - 20 Apr	Scandinavian Airlines
20 Apr - 11 May	SWISS
30 Apr - 11 May	Scandinavian Airlines
08 Apr - 22 Apr	Lufthansa
17 Apr - 20 Apr	Scandinavian Airlines
07 Apr - 21 Apr	Lufthansa
18 Apr - 15 May	SWISS
22 Apr - 13 May	Turkish Airlines
13 Apr - 04 May	SWISS
18 Apr - 25 Apr	SWISS
08 Apr - 18 Apr	Turkish Airlines
01 Apr - 08 Apr	Air France
01 Apr - 15 Apr	Finnair
03 Apr - 18 Apr	Etihad Airways
06 Apr - 13 Apr	Etihad Airways

Also check the deals for one-way flights from Dublin to Seoul in April.

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 Dublin to Seoul in April from 533€

Return flights