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

Return flights

21 May - 26 May	Air France
21 May - 29 May	Air France
14 May - 19 May	Air France
26 May - 29 May	Air France
06 May - 20 May	KLM
06 May - 12 May	KLM
11 May - 21 May	KLM
27 May - 31 May	Scandinavian Airlines
03 May - 11 May	Air China
13 May - 27 May	Air China
21 May - 04 Jun	Air China
31 May - 15 Jun	Air China
31 May - 16 Jun	Air China
24 May - 04 Jun	Air China
28 May - 04 Jun	Air China
31 May - 12 Jun	Air China
31 May - 13 Jun	Air China
26 May - 04 Jun	Air China
28 May - 05 Jun	Air China
31 May - 07 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 558€

Return flights