AirHint found the following cheapest return flights from Barcelona (BCN) to Seoul (ICN) in October 2025 (see full year).

Return flights

01 Oct - 04 Nov	LOT
01 Oct - 12 Oct	LOT
21 Oct - 28 Oct	LOT
01 Oct - 15 Oct	LOT
01 Oct - 11 Oct	LOT
25 Oct - 08 Nov	LOT
21 Oct - 03 Nov	Air China
22 Oct - 29 Oct	Air China
28 Oct - 06 Nov	Air China
31 Oct - 22 Nov	Air China
28 Oct - 13 Nov	Air China
31 Oct - 17 Nov	Air China
01 Oct - 31 Oct	LOT
27 Oct - 07 Nov	LOT
15 Oct - 20 Nov	Air China
15 Oct - 05 Nov	Air China
16 Oct - 24 Oct	Air China
27 Oct - 31 Oct	LOT
01 Oct - 13 Oct	Etihad Airways
16 Oct - 25 Oct	Wizz Air

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

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 Barcelona to Seoul in October from 558€

Return flights