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

Return flights

24 Aug - 08 Sep	Etihad Airways
24 Aug - 11 Sep	Etihad Airways
21 Aug - 04 Sep	Etihad Airways
24 Aug - 04 Sep	Etihad Airways
23 Aug - 04 Sep	Etihad Airways
29 Aug - 12 Sep	Air France
18 Aug - 22 Sep	Ryanair
25 Aug - 07 Sep	Ryanair
18 Aug - 15 Sep	Air France
25 Aug - 04 Sep	Ryanair
21 Aug - 28 Aug	Etihad Airways
25 Aug - 31 Aug	Ryanair
25 Aug - 28 Aug	Ryanair
19 Aug - 26 Aug	Etihad Airways
18 Aug - 27 Aug	Turkish Airlines
16 Aug - 23 Aug	Ryanair
20 Aug - 27 Aug	Turkish Airlines
22 Aug - 31 Aug	Ryanair
07 Aug - 11 Aug	Etihad Airways
29 Aug - 31 Aug	Aer Lingus

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

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 August from $702

Return flights