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

Return flights

21 Apr - 29 Apr	Scandinavian Airlines
04 Apr - 18 Apr	SWISS
28 Apr - 11 May	Turkish Airlines
20 Apr - 30 Apr	Turkish Airlines
11 Apr - 18 Apr	Turkish Airlines
05 Apr - 22 Apr	SWISS
07 Apr - 27 Apr	Lufthansa
17 Apr - 08 May	Turkish Airlines
07 Apr - 19 Apr	Lufthansa
07 Apr - 13 Apr	Lufthansa
03 Apr - 27 Apr	SWISS
10 Apr - 30 Apr	SWISS

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 $653

Return flights