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

Return flights

31 Aug - 14 Sep	Norwegian Air Sweden AOC
22 Aug - 29 Aug	Turkish Airlines
28 Aug - 11 Sep	Ryanair
21 Aug - 07 Sep	Air France
28 Aug - 12 Sep	Ryanair
24 Aug - 10 Sep	Ryanair
19 Aug - 03 Sep	Vueling Airlines
30 Aug - 13 Sep	Ryanair
12 Aug - 26 Aug	Finnair
30 Aug - 12 Sep	Ryanair
04 Aug - 12 Aug	Vueling Airlines
17 Aug - 31 Aug	Finnair
04 Aug - 21 Aug	Etihad Airways
18 Aug - 25 Aug	Finnair
05 Aug - 18 Aug	Finnair
20 Aug - 04 Sep	Turkish Airlines
04 Aug - 14 Aug	Finnair
11 Aug - 29 Aug	Finnair
30 Aug - 06 Sep	Turkish Airlines
17 Aug - 28 Aug	Ryanair

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

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 August from 647€

Return flights