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

Return flights

07 Mar - 17 Mar	LOT
08 Mar - 18 Mar	LOT
01 Mar - 14 Mar	LOT
19 Mar - 09 Apr	Air France
19 Mar - 31 Mar	Iberia
18 Mar - 08 Apr	Air France
21 Mar - 21 Apr	LOT
08 Mar - 20 Mar	KLM
03 Mar - 21 Mar	KLM
26 Mar - 16 Apr	Iberia
24 Mar - 14 Apr	Iberia
11 Mar - 20 Apr	Cathay Pacific
08 Mar - 22 Mar	Etihad Airways
25 Mar - 05 Apr	Iberia
02 Mar - 08 Mar	Iberia
02 Mar - 15 Mar	Iberia
26 Mar - 07 Apr	Iberia
23 Mar - 06 Apr	Iberia
05 Mar - 17 Apr	Air China
16 Mar - 28 Mar	Qatar Airways

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 $645

Return flights