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

Return flights

17 Jan - 24 Jan	LOT
12 Jan - 19 Jan	LOT
14 Jan - 21 Jan	LOT
19 Jan - 02 Feb	LOT
14 Jan - 20 Jan	LOT
12 Jan - 20 Jan	LOT
26 Jan - 04 Feb	LOT
24 Jan - 31 Jan	LOT
25 Jan - 01 Feb	LOT
14 Jan - 25 Jan	Air China
16 Jan - 27 Jan	Air China
18 Jan - 25 Jan	Air China
09 Jan - 15 Jan	Air China
30 Jan - 16 Feb	Air China
20 Jan - 05 Feb	Cathay Pacific
20 Jan - 03 Feb	Cathay Pacific
27 Jan - 05 Feb	Cathay Pacific
29 Jan - 17 Feb	Air China
04 Jan - 05 Feb	Air China
30 Jan - 09 Feb	Lufthansa

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 498€

Return flights