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

Return flights

29 Aug - 13 Sep	Etihad Airways
19 Aug - 28 Aug	LOT
11 Aug - 28 Aug	LOT
31 Aug - 13 Sep	Etihad Airways
20 Aug - 03 Sep	ITA Airways
30 Aug - 10 Sep	Etihad Airways
31 Aug - 08 Sep	Ryanair
25 Aug - 11 Sep	Etihad Airways
04 Aug - 18 Aug	Iberia
29 Aug - 19 Sep	Etihad Airways
18 Aug - 30 Aug	Ryanair
10 Aug - 19 Aug	Iberia
25 Aug - 06 Sep	Finnair
21 Aug - 30 Aug	Turkish Airlines
28 Aug - 06 Sep	Turkish Airlines
21 Aug - 31 Aug	Turkish Airlines
24 Aug - 31 Aug	Turkish Airlines
19 Aug - 04 Sep	Wizz Air UK
11 Aug - 19 Aug	Turkish Airlines
13 Aug - 28 Aug	Turkish Airlines

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 651€

Return flights