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

Return flights

27 Apr - 15 May	Ryanair
14 Apr - 07 May	Lufthansa
14 Apr - 23 Apr	Ryanair
21 Apr - 14 May	Lufthansa
08 Apr - 12 May	Etihad Airways
15 Apr - 06 May	Lufthansa
14 Apr - 08 May	Lufthansa
14 Apr - 24 Apr	Lufthansa
24 Apr - 07 May	Qatar Airways
27 Apr - 10 May	SWISS
05 Apr - 21 Apr	Etihad Airways
02 Apr - 16 Apr	Lufthansa
14 Apr - 02 May	Etihad Airways
18 Apr - 24 Apr	Lufthansa
30 Apr - 06 May	Qatar Airways
05 Apr - 18 Apr	Etihad Airways
04 Apr - 15 Apr	Lufthansa
11 Apr - 26 Apr	Ryanair
19 Apr - 30 Apr	Ryanair
06 Apr - 20 Apr	Ryanair

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 456€

Return flights