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

Return flights

12 Oct - 18 Oct	Ryanair
13 Oct - 22 Oct	Ryanair
14 Oct - 25 Oct	Ryanair
30 Oct - 17 Nov	Ryanair
30 Oct - 10 Nov	Ryanair
01 Oct - 25 Oct	Ryanair
12 Oct - 19 Oct	Ryanair
13 Oct - 20 Oct	Ryanair
13 Oct - 25 Oct	Ryanair
12 Oct - 17 Oct	Ryanair
12 Oct - 25 Oct	Ryanair
16 Oct - 25 Oct	Ryanair
15 Oct - 01 Nov	Ryanair
26 Oct - 02 Nov	Ryanair
16 Oct - 17 Nov	Ryanair
15 Oct - 03 Nov	Ryanair
16 Oct - 03 Nov	Ryanair

Also check the deals for one-way flights from Hahn 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 Hahn to Seoul in October from 546€

Return flights