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

Return flights

31 Aug - 12 Sep	Air China
21 Aug - 01 Sep	Cathay Pacific
19 Aug - 01 Sep	Cathay Pacific
19 Aug - 26 Aug	Cathay Pacific
31 Aug - 15 Sep	Air China
28 Aug - 15 Sep	Air China
17 Aug - 29 Aug	Air China
22 Aug - 31 Aug	Qatar Airways
19 Aug - 31 Aug	Qatar Airways
30 Aug - 10 Sep	Air China
18 Aug - 08 Sep	Cathay Pacific
14 Aug - 23 Aug	Air China
18 Aug - 30 Aug	Air China
07 Aug - 14 Aug	Air China
01 Aug - 15 Aug	Air China
11 Aug - 25 Aug	Air China
07 Aug - 27 Aug	Air China
29 Aug - 15 Sep	Air China
23 Aug - 01 Sep	Air China
20 Aug - 01 Sep	Qatar Airways

Also check the deals for one-way flights from Madrid to Seoul in August.

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 August from 898€

Return flights