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

Return flights

20 Apr - 28 Apr	Air China
23 Apr - 01 May	Air China
16 Apr - 23 Apr	Air China
14 Apr - 30 Apr	Air China
24 Apr - 01 May	Air China
12 Apr - 28 Apr	Air China
09 Apr - 25 Apr	Air China
07 Apr - 21 Apr	Air China
12 Apr - 25 Apr	Air China
04 Apr - 11 Apr	Wizz Air
07 Apr - 14 Apr	Air China
04 Apr - 13 Apr	Wizz Air
21 Apr - 05 May	Cathay Pacific
12 Apr - 02 May	Air China
30 Apr - 10 May	Etihad Airways
25 Apr - 02 May	Air China
28 Apr - 13 May	Etihad Airways
30 Apr - 16 May	Etihad Airways
30 Apr - 17 May	Qatar Airways
02 Apr - 01 May	Air China

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 $716

Return flights