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

One-Way flights

21 Apr	Iberia Express
26 Apr	Iberia Express
25 Apr	Iberia Express
03 Apr	Iberia
08 Apr	Iberia Express
13 Apr	Iberia
29 Apr	Cathay Pacific
11 Apr	Aegean Airlines
02 Apr	SKY express
20 Apr	Etihad Airways

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

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 April from 372€

One-Way flights