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

Return flights

27 May - 11 Jun	Lufthansa
26 May - 05 Jun	Lufthansa
27 May - 12 Jun	Lufthansa
14 May - 28 May	Ryanair
14 May - 26 May	Lufthansa
10 May - 26 May	Ryanair
18 May - 27 May	Lufthansa
19 May - 01 Jun	Lufthansa
11 May - 20 May	Lufthansa
19 May - 27 May	Etihad Airways
26 May - 02 Jun	Etihad Airways
18 May - 28 May	Lufthansa
14 May - 20 May	Qatar Airways
16 May - 26 May	Lufthansa
11 May - 16 May	Ryanair
16 May - 20 Jun	Lufthansa
30 May - 07 Jun	Qatar Airways
30 May - 14 Jun	Qatar Airways

Also check the deals for one-way flights from Dublin to Seoul 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 Dublin to Seoul in May from 507€

Return flights