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

Return flights

10 Jan - 03 Feb	LOT
24 Jan - 31 Jan	LOT
14 Jan - 18 Feb	KLM
15 Jan - 19 Feb	KLM
28 Jan - 03 Feb	LOT
04 Jan - 02 Feb	Scandinavian Airlines
06 Jan - 31 Jan	Lufthansa
11 Jan - 17 Jan	LOT
24 Jan - 29 Jan	KLM
15 Jan - 22 Jan	Air China
25 Jan - 31 Jan	Finnair
01 Jan - 01 Feb	Air China
03 Jan - 01 Feb	Turkish Airlines
29 Jan - 07 Feb	Finnair
17 Jan - 25 Jan	Turkish Airlines
19 Jan - 25 Jan	Turkish Airlines
31 Jan - 08 Feb	Finnair
12 Jan - 18 Jan	Air China
04 Jan - 10 Jan	Air China
04 Jan - 05 Feb	Wizz Air Malta

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 559€

Return flights