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

Return flights

22 Oct - 11 Nov	Ryanair
23 Oct - 05 Nov	Ryanair
22 Oct - 05 Nov	Ryanair
15 Oct - 11 Nov	Ryanair
21 Oct - 05 Nov	Ryanair
04 Oct - 17 Oct	Aer Lingus
01 Oct - 15 Oct	Aer Lingus
27 Oct - 13 Nov	Ryanair
02 Oct - 12 Oct	Air France
16 Oct - 03 Nov	Hainan Airlines
01 Oct - 14 Oct	Air France
01 Oct - 13 Oct	Etihad Airways
01 Oct - 07 Oct	Air France
05 Oct - 11 Oct	Etihad Airways
26 Oct - 13 Nov	Lufthansa
23 Oct - 30 Oct	Ryanair
27 Oct - 26 Nov	Ryanair
01 Oct - 16 Oct	Etihad Airways
21 Oct - 06 Nov	Lufthansa
01 Oct - 09 Oct	Air France

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 516€

Return flights