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

Return flights

23 Apr - 10 May	Iberia
23 Apr - 08 May	Iberia
23 Apr - 05 May	LOT
14 Apr - 05 May	LOT
09 Apr - 20 Apr	LOT
12 Apr - 21 Apr	Etihad Airways
21 Apr - 28 Apr	LOT
23 Apr - 30 Apr	Etihad Airways
14 Apr - 30 Apr	Etihad Airways
13 Apr - 26 Apr	Etihad Airways
06 Apr - 13 Apr	LOT
14 Apr - 19 Apr	Etihad Airways
15 Apr - 22 Apr	Etihad Airways
07 Apr - 29 Apr	Etihad Airways
07 Apr - 06 May	Etihad Airways
22 Apr - 03 May	Etihad Airways
25 Apr - 09 May	Air China
26 Apr - 10 May	Air China
29 Apr - 12 May	LOT
24 Apr - 09 May	Ryanair

Also check the deals for one-way 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 return flights from Madrid to Seoul in April from $651

Return flights