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

Return flights

02 Oct - 15 Oct	Ryanair
02 Oct - 17 Oct	Ryanair
03 Oct - 18 Oct	Ryanair
03 Oct - 17 Oct	Ryanair
22 Oct - 07 Nov	Ryanair
23 Oct - 07 Nov	Ryanair
23 Oct - 09 Nov	Ryanair
23 Oct - 30 Oct	Ryanair
23 Oct - 05 Nov	Ryanair
03 Oct - 10 Oct	Ryanair
03 Oct - 12 Oct	Ryanair
31 Oct - 07 Nov	Ryanair
04 Oct - 12 Oct	Ryanair
15 Oct - 26 Oct	Ryanair
13 Oct - 23 Oct	Ryanair
25 Oct - 06 Nov	Ryanair
21 Oct - 05 Nov	Ryanair
29 Oct - 06 Nov	Aer Lingus
30 Oct - 06 Nov	Ryanair
27 Oct - 03 Nov	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 $622

Return flights