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

Return flights

20 Apr - 30 Apr	Air China
09 Apr - 23 Apr	Air China
19 Apr - 26 Apr	Air China
02 Apr - 11 Apr	Air China
04 Apr - 14 Apr	Air China
19 Apr - 01 May	Air China
27 Apr - 10 May	Air China
22 Apr - 30 Apr	Air China
08 Apr - 17 Apr	Air China
03 Apr - 11 Apr	Air China
23 Apr - 26 Apr	Air China
23 Apr - 25 May	Air China
21 Apr - 01 May	Air China
30 Apr - 09 May	Air China
26 Apr - 09 May	Air China
24 Apr - 01 May	Air China
09 Apr - 19 Apr	Air China
18 Apr - 02 May	Air China
25 Apr - 05 May	Air China
25 Apr - 04 May	Air China

Also check the deals for one-way flights from Seoul to Barcelona in April.

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 April from 604€

Return flights