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

Return flights

23 May - 30 May	Air France
21 May - 30 May	Air France
21 May - 29 May	Air France
19 May - 29 May	Air France
19 May - 26 May	Air France
23 May - 02 Jun	Air France
15 May - 24 May	Air France
09 May - 19 May	Air China
09 May - 15 May	Air China
21 May - 26 May	Air China
11 May - 22 May	Air China
22 May - 05 Jun	Air China
29 May - 02 Jun	Air China
25 May - 01 Jun	Air China
31 May - 07 Jun	Air China
30 May - 07 Jun	Air China
26 May - 25 Jun	Air China
25 May - 25 Jun	Air China
26 May - 26 Jun	Air China
18 May - 01 Jun	Air China

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

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 May from 559€

Return flights