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

Return flights

02 Oct - 13 Oct	Lufthansa
22 Oct - 05 Nov	Aer Lingus
22 Oct - 29 Oct	Qatar Airways
17 Oct - 10 Nov	Scandinavian Airlines
29 Oct - 03 Nov	Lufthansa
25 Oct - 05 Nov	Lufthansa
01 Oct - 29 Oct	Lufthansa
23 Oct - 04 Nov	Hainan Airlines
17 Oct - 23 Oct	Lufthansa
03 Oct - 15 Oct	Lufthansa
17 Oct - 24 Oct	Lufthansa
29 Oct - 07 Nov	Finnair
18 Oct - 04 Nov	Lufthansa
04 Oct - 11 Oct	Hainan Airlines
24 Oct - 27 Oct	Scandinavian Airlines
27 Oct - 03 Nov	Scandinavian Airlines
27 Oct - 11 Nov	Lufthansa
23 Oct - 09 Nov	SWISS
02 Oct - 28 Oct	Finnair
01 Oct - 28 Oct	Lufthansa

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 605€

Return flights