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

Return flights

06 Jan - 20 Jan	Air China
15 Jan - 25 Jan	China Southern
15 Jan - 24 Jan	China Southern
20 Jan - 27 Jan	Air China
16 Jan - 27 Jan	Air China
09 Jan - 13 Jan	Air China
22 Jan - 25 Jan	Air China
09 Jan - 22 Jan	Air China
11 Jan - 15 Jan	Air China
11 Jan - 16 Jan	Air China
28 Jan - 01 Feb	Air China
22 Jan - 05 Feb	Air China
24 Jan - 07 Feb	Air China
27 Jan - 03 Feb	Air China
09 Jan - 10 Feb	Air China
12 Jan - 08 Feb	Air China
25 Jan - 08 Feb	Air China
30 Jan - 03 Feb	Air China
31 Jan - 28 Feb	Air China
16 Jan - 05 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 575€

Return flights