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

Return flights

21 Oct - 27 Oct	China Eastern
30 Oct - 06 Nov	Air China
28 Oct - 04 Nov	Air China
27 Oct - 09 Nov	Air China
23 Oct - 06 Nov	Air China
28 Oct - 05 Nov	Air China
01 Oct - 22 Oct	LOT
01 Oct - 19 Oct	LOT
26 Oct - 08 Nov	LOT
20 Oct - 12 Nov	Air China
31 Oct - 09 Nov	Air China
23 Oct - 07 Nov	Air China
24 Oct - 11 Nov	Air China
23 Oct - 26 Oct	Air China
01 Oct - 12 Oct	LOT
01 Oct - 14 Oct	LOT
01 Oct - 11 Oct	LOT
04 Oct - 21 Oct	LOT
21 Oct - 29 Oct	LOT
01 Oct - 20 Oct	LOT

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 514€

Return flights