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

One-Way flights

22 May	Vietnam Airlines
21 May	Vietnam Airlines
06 May	Etihad Airways
20 May	Etihad Airways
09 May	Vietnam Airlines
24 May	Vietnam Airlines
01 May	Etihad Airways
15 May	Air China
11 May	Air China
12 May	Air China

Also check the deals for return 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 one-way flights from Seoul to Barcelona in May from 296€

One-Way flights