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

Return flights

31 Aug - 15 Sep	Sichuan Airlines
26 Aug - 16 Sep	Etihad Airways
31 Aug - 13 Sep	Etihad Airways
28 Aug - 10 Sep	Sichuan Airlines
31 Aug - 07 Sep	Sichuan Airlines
24 Aug - 12 Sep	Etihad Airways
24 Aug - 05 Sep	Sichuan Airlines
28 Aug - 13 Sep	Etihad Airways
31 Aug - 11 Sep	Sichuan Airlines
25 Aug - 10 Sep	Etihad Airways
18 Aug - 25 Aug	Finnair
25 Aug - 27 Aug	Air Europa
18 Aug - 27 Aug	Ryanair
20 Aug - 27 Aug	Air Europa
17 Aug - 24 Aug	Iberia
20 Aug - 31 Aug	Air Europa
16 Aug - 27 Aug	Iberia
11 Aug - 16 Aug	Ryanair
17 Aug - 29 Aug	Iberia
13 Aug - 20 Aug	Ryanair

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 590€

Return flights