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

Return flights

31 Aug - 06 Sep	Air China
31 Aug - 11 Sep	Air China
31 Aug - 08 Sep	Air China
24 Aug - 01 Sep	Air China
24 Aug - 20 Sep	Air China
22 Aug - 01 Sep	Air China
31 Aug - 13 Sep	Air China
25 Aug - 04 Sep	Air China
29 Aug - 04 Sep	Air China
30 Aug - 11 Sep	Air China
22 Aug - 28 Aug	Air China
17 Aug - 25 Aug	Air China
24 Aug - 28 Aug	Air China
17 Aug - 21 Aug	Air China
19 Aug - 28 Aug	Air China
11 Aug - 20 Aug	Etihad Airways
12 Aug - 25 Aug	Etihad Airways
03 Aug - 24 Aug	Etihad Airways
11 Aug - 23 Aug	Etihad Airways
04 Aug - 27 Aug	Etihad Airways

Also check the deals for one-way flights from Seoul to Barcelona 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 Seoul to Barcelona in August from 517€

Return flights