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

Return flights

01 Dec - 10 Dec	Cathay Pacific
09 Dec - 15 Dec	Scandinavian Airlines
06 Dec - 15 Dec	Scandinavian Airlines
04 Dec - 17 Dec	Cathay Pacific
04 Dec - 22 Dec	LOT
05 Dec - 13 Dec	LOT
16 Dec - 30 Dec	China Eastern
19 Dec - 09 Jan	LOT
26 Dec - 08 Jan	LOT
04 Dec - 13 Dec	LOT
03 Dec - 11 Dec	Scandinavian Airlines
03 Dec - 13 Dec	LOT
31 Dec - 15 Jan	Lufthansa
24 Dec - 15 Jan	Lufthansa
23 Dec - 06 Jan	Lufthansa
24 Dec - 04 Jan	Lufthansa
29 Dec - 08 Jan	Lufthansa
24 Dec - 07 Jan	Lufthansa
27 Dec - 06 Jan	Lufthansa
24 Dec - 03 Jan	Lufthansa

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 509€

Return flights