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

Return flights

01 Apr - 10 May	SWISS
01 Apr - 27 Apr	SWISS
01 Apr - 09 Apr	SWISS
01 Apr - 07 Apr	SWISS
01 Apr - 29 Apr	SWISS
15 Apr - 21 Apr	Lufthansa
21 Apr - 27 Apr	Air China
02 Apr - 09 Apr	Lufthansa
02 Apr - 27 Apr	Lufthansa
01 Apr - 06 Apr	SWISS
02 Apr - 29 Apr	Lufthansa
02 Apr - 14 May	Lufthansa
03 Apr - 12 May	Lufthansa
29 Apr - 05 May	Lufthansa
29 Apr - 13 May	Lufthansa
15 Apr - 13 May	Lufthansa
28 Apr - 05 May	Lufthansa
28 Apr - 07 May	Lufthansa
08 Apr - 13 May	SWISS
23 Apr - 03 May	Lufthansa

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 468€

Return flights