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

Return flights

30 Mar - 13 Apr	Air China
24 Mar - 31 Mar	Air China
16 Mar - 23 Mar	Air China
23 Mar - 30 Mar	Air China
25 Mar - 01 Apr	Air China
10 Mar - 19 Mar	Air China
29 Mar - 08 Apr	Air China
29 Mar - 16 Apr	Air China
22 Mar - 01 Apr	Air China
18 Mar - 01 Apr	Air China
09 Mar - 23 Mar	Air China
12 Mar - 23 Mar	Air China
15 Mar - 23 Mar	Air China
22 Mar - 29 Mar	Air China
26 Mar - 09 Apr	Air China
24 Mar - 01 Apr	Air China
30 Mar - 08 Apr	Air China
29 Mar - 05 Apr	Air China
03 Mar - 17 Mar	Air China
17 Mar - 23 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 398€

Return flights