AirHint found the following cheapest one-way flights from Madrid (MAD) to Seoul (ICN) in May 2026 (see full year).

One-Way flights

23 May	Iberia
12 May	Cathay Pacific
05 May	Cathay Pacific
06 May	Cathay Pacific
27 May	Cathay Pacific
21 May	Etihad Airways
17 May	Etihad Airways
04 May	Finnair
12 May	Korean Air	direct
01 May	Korean Air	direct

Also check the deals for return flights from Madrid to Seoul in May.

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 one-way flights from Madrid to Seoul in May from 405€

One-Way flights