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

Return flights

05 Mar - 13 Mar	China Southern
10 Mar - 20 Mar	China Southern
10 Mar - 17 Mar	China Southern
10 Mar - 18 Mar	China Southern
01 Mar - 08 Mar	Ryanair
08 Mar - 14 Mar	Ryanair
08 Mar - 24 Mar	Ryanair
01 Mar - 14 Mar	Ryanair
08 Mar - 17 Mar	Ryanair
05 Mar - 21 Mar	Ryanair
01 Mar - 01 Apr	LOT
21 Mar - 02 Apr	LOT
20 Mar - 02 Apr	LOT
07 Mar - 07 Apr	LOT
03 Mar - 17 Apr	Etihad Airways
19 Mar - 02 Apr	Etihad Airways
19 Mar - 05 Apr	China Southern
19 Mar - 07 Apr	China Southern
18 Mar - 02 Apr	LOT
19 Mar - 06 Apr	China Southern

Also check the deals for one-way flights from Madrid to Seoul 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 Madrid to Seoul in March from 479€

Return flights