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

Return flights

31 Mar - 28 Apr	Air China
27 Mar - 12 Apr	Air China
31 Mar - 14 Apr	Air China
10 Mar - 31 Mar	Air China
15 Mar - 12 Apr	Air China
26 Mar - 12 Apr	Air China
04 Mar - 11 Mar	Air China
29 Mar - 10 Apr	Air China
15 Mar - 10 Apr	Air China
02 Mar - 08 Mar	Air China
13 Mar - 09 Apr	Air China
05 Mar - 12 Mar	Air China
15 Mar - 07 Apr	Air China
24 Mar - 11 Apr	Air China
03 Mar - 08 Mar	Air China
03 Mar - 12 Mar	Air China
03 Mar - 10 Mar	Air China
05 Mar - 10 Mar	Air China
06 Mar - 31 Mar	Air China
01 Mar - 13 Mar	Air China

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

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 Seoul to Madrid in March from 458€

Return flights