AirHint found the following cheapest return flights from Seoul (ICN) to Madrid (MAD) in October 2026 (see full year).

Return flights

13 Oct - 22 Oct	Air China
23 Oct - 29 Oct	Air China
13 Oct - 27 Oct	Air China
29 Oct - 07 Nov	Air China
24 Oct - 07 Nov	Air China
23 Oct - 05 Nov	Air China
24 Oct - 06 Nov	Air China
19 Oct - 28 Oct	Air China
12 Oct - 22 Oct	Air China
22 Oct - 30 Oct	Air China
23 Oct - 30 Oct	Air China
23 Oct - 27 Oct	Air China
25 Oct - 05 Nov	Air China
19 Oct - 02 Nov	Air China
22 Oct - 01 Nov	Air China
12 Oct - 30 Nov	Air China
26 Oct - 06 Nov	Air China
26 Oct - 02 Nov	Air China
20 Oct - 27 Oct	Air China
20 Oct - 29 Oct	Air China

Also check the deals for one-way flights from Seoul to Madrid 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 Seoul to Madrid in October from 501€

Return flights