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

Return flights

07 Mar - 13 Mar	Air France
31 Mar - 07 Apr	Air France
27 Mar - 07 Apr	Air France
03 Mar - 28 Apr	KLM
06 Mar - 13 Mar	KLM
03 Mar - 13 Mar	KLM
04 Mar - 12 Mar	Air China
29 Mar - 06 Apr	Air China
27 Mar - 08 Apr	Air China
04 Mar - 28 Apr	Air China
29 Mar - 09 Apr	Air China
05 Mar - 19 Mar	Air China
11 Mar - 19 Mar	Air China
11 Mar - 08 Apr	Air China
23 Mar - 10 Apr	Air China
28 Mar - 07 Apr	Air China
09 Mar - 31 Mar	Air China
26 Mar - 29 Mar	Air China
20 Mar - 31 Mar	Air China
25 Mar - 29 Mar	Air China

Also check the deals for one-way flights from Seoul to Barcelona 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 Barcelona in March from 488€

Return flights