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

Return flights

18 Jan - 02 Feb	Scandinavian Airlines
19 Jan - 31 Jan	LOT
07 Jan - 13 Jan	LOT
11 Jan - 11 Feb	LOT
15 Jan - 22 Jan	Air China
01 Jan - 08 Jan	Air China
12 Jan - 19 Jan	Air China
01 Jan - 06 Jan	Air China
07 Jan - 15 Jan	Air China
08 Jan - 16 Jan	Air China
06 Jan - 18 Jan	Air China
09 Jan - 15 Jan	Air China
16 Jan - 01 Feb	Lufthansa
01 Jan - 28 Feb	Air China
20 Jan - 01 Feb	Lufthansa
23 Jan - 05 Feb	Lufthansa
23 Jan - 01 Feb	Air China
13 Jan - 13 Feb	Air China
12 Jan - 12 Feb	Air China
06 Jan - 06 Feb	Air China

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

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 January from 501€

Return flights