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

Return flights

31 Oct - 07 Nov	Ryanair
31 Oct - 13 Nov	Ryanair
31 Oct - 28 Nov	Ryanair
31 Oct - 15 Nov	Ryanair
31 Oct - 06 Nov	Ryanair
30 Oct - 28 Nov	Ryanair
30 Oct - 14 Nov	Ryanair
31 Oct - 03 Nov	Ryanair
22 Oct - 03 Nov	Aer Lingus
28 Oct - 06 Nov	Hainan Airlines
21 Oct - 28 Oct	Ryanair
21 Oct - 31 Oct	Ryanair
27 Oct - 31 Oct	Ryanair
21 Oct - 30 Oct	Ryanair
22 Oct - 25 Oct	Aer Lingus
23 Oct - 31 Oct	Ryanair
20 Oct - 27 Oct	Ryanair
23 Oct - 27 Oct	Ryanair
20 Oct - 24 Oct	Ryanair
21 Oct - 27 Oct	Ryanair

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

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 October from 471€

Return flights