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

Return flights

16 Sep - 14 Oct	easyJet
21 Sep - 11 Oct	Wizz Air Malta
05 Sep - 17 Sep	easyJet
01 Sep - 16 Sep	Ryanair
02 Sep - 17 Sep	Vueling Airlines
02 Sep - 16 Sep	Vueling Airlines
06 Sep - 17 Sep	Ryanair
30 Sep - 11 Oct	LOT
30 Sep - 14 Oct	LOT
30 Sep - 15 Oct	LOT
02 Sep - 15 Sep	Wizz Air Malta
02 Sep - 22 Sep	Wizz Air Malta
03 Sep - 16 Sep	Ryanair
07 Sep - 14 Sep	Vueling Airlines
10 Sep - 22 Sep	Ryanair
24 Sep - 10 Oct	easyJet
30 Sep - 13 Oct	Etihad Airways
24 Sep - 30 Oct	Ryanair
07 Sep - 07 Oct	Vueling Airlines
10 Sep - 07 Oct	Ryanair

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

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 September from 533€

Return flights