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

One-Way flights

19 May	Iberia Express
10 May	Iberia Express
25 May	Iberia Express
11 May	Iberia Express
01 May	Cathay Pacific
05 May	Cathay Pacific
03 May	Cathay Pacific
26 May	Cathay Pacific
12 May	Cathay Pacific
21 May	Etihad Airways

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 397€

One-Way flights