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

Return flights

22 Sep - 28 Sep	T'way Air
30 Sep - 16 Oct	Air France
23 Sep - 11 Oct	Ryanair
18 Sep - 29 Sep	Vueling Airlines
29 Sep - 15 Oct	Vueling Airlines
25 Sep - 13 Oct	Ryanair
27 Sep - 11 Oct	Ryanair
17 Sep - 24 Sep	T'way Air
22 Sep - 08 Oct	KLM
29 Sep - 14 Oct	Vueling Airlines
29 Sep - 10 Oct	Vueling Airlines
29 Sep - 06 Oct	Air France
16 Sep - 28 Sep	Ryanair
22 Sep - 24 Sep	T'way Air
30 Sep - 17 Oct	Wizz Air Malta
18 Sep - 25 Sep	Air France
16 Sep - 25 Sep	Air France
18 Sep - 23 Sep	Vueling Airlines
20 Sep - 28 Sep	Air Europa
22 Sep - 25 Sep	T'way Air

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 608€

Return flights