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

Return flights

25 Dec - 29 Dec	Air China
26 Dec - 30 Dec	Air China
24 Dec - 28 Dec	Air China
26 Dec - 06 Jan	Air China
25 Dec - 08 Jan	Air China
01 Dec - 07 Dec	Air China
22 Dec - 27 Dec	Air China
21 Dec - 30 Dec	Air China
20 Dec - 04 Jan	Air China
20 Dec - 28 Dec	Air China
09 Dec - 11 Dec	Air China
14 Dec - 18 Dec	Air China
05 Dec - 16 Dec	Air China
26 Dec - 01 Jan	Air China
15 Dec - 07 Jan	Air China
31 Dec - 10 Jan	Air China
30 Dec - 06 Jan	Air China
22 Dec - 01 Jan	Air China
21 Dec - 01 Jan	Air China
22 Dec - 06 Jan	Air China

Also check the deals for one-way flights from Seoul to Madrid 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 Seoul to Madrid in December from 323€

Return flights