AirHint found the following cheapest return flights from Madrid (MAD) to Seoul (ICN) in December 2025 (see full year).

Return flights

31 Dec - 07 Jan	Wizz Air Malta
31 Dec - 08 Jan	China Eastern
24 Dec - 31 Dec	Pegasus Airlines
31 Dec - 11 Jan	Wizz Air Malta
28 Dec - 11 Jan	China Eastern
31 Dec - 10 Jan	Wizz Air Malta
29 Dec - 07 Jan	Sichuan Airlines
31 Dec - 12 Jan	Wizz Air Malta
30 Dec - 08 Jan	China Eastern
28 Dec - 17 Jan	Iberia
30 Dec - 13 Jan	Ryanair
23 Dec - 31 Dec	Ryanair
27 Dec - 31 Dec	Hainan Airlines
22 Dec - 31 Dec	Air Europa
22 Dec - 30 Dec	Etihad Airways
20 Dec - 31 Dec	Ryanair
23 Dec - 30 Dec	Wizz Air
26 Dec - 30 Dec	Ryanair
23 Dec - 26 Dec	Turkish Airlines
29 Dec - 31 Dec	Turkish Airlines

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

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 December from 534€

Return flights