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

Return flights

04 Mar - 13 Mar	Air China
30 Mar - 17 Apr	Air China
07 Mar - 15 Mar	Air China
04 Mar - 11 Mar	Air China
06 Mar - 11 Mar	Air China
11 Mar - 20 Mar	Air China
06 Mar - 14 Mar	Air China
07 Mar - 14 Mar	Air China
08 Mar - 14 Mar	Air China
17 Mar - 31 Mar	Air China
13 Mar - 20 Mar	Air China
30 Mar - 06 Apr	Air China
31 Mar - 11 Apr	Air China
24 Mar - 01 Apr	Air China
31 Mar - 07 Apr	Air China
30 Mar - 09 Apr	Air China
27 Mar - 05 Apr	Air China
31 Mar - 21 Apr	Air China
31 Mar - 10 Apr	Air China
31 Mar - 18 Apr	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 $574

Return flights