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

Return flights

04 Apr - 13 Apr	SWISS
13 Apr - 28 Apr	SWISS
02 Apr - 14 Apr	KLM
02 Apr - 12 Apr	KLM
01 Apr - 11 Apr	KLM
02 Apr - 11 Apr	KLM
08 Apr - 19 Apr	Air France
08 Apr - 22 Apr	Air France
07 Apr - 21 Apr	Air France
07 Apr - 18 Apr	Air France
08 Apr - 06 May	Air France
18 Apr - 03 May	Air China
20 Apr - 02 May	Air China
23 Apr - 03 May	Air China
09 Apr - 07 May	Air France
25 Apr - 02 May	Air China
13 Apr - 14 May	Air China
28 Apr - 05 May	Finnair
28 Apr - 07 May	Finnair
29 Apr - 03 May	Etihad Airways

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 $638

Return flights