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

Return flights

15 Aug - 18 Aug	China Eastern
03 Aug - 31 Aug	Lufthansa
31 Aug - 04 Sep	Air China
29 Aug - 04 Sep	Air China
26 Aug - 09 Sep	Scandinavian Airlines
26 Aug - 02 Sep	Scandinavian Airlines
31 Aug - 07 Sep	Scandinavian Airlines
31 Aug - 14 Sep	Scandinavian Airlines
24 Aug - 28 Aug	Air China
19 Aug - 02 Sep	Lufthansa
27 Aug - 09 Sep	Lufthansa
30 Aug - 08 Sep	Air China
30 Aug - 06 Sep	Air China
17 Aug - 29 Aug	Lufthansa
18 Aug - 27 Aug	Lufthansa
17 Aug - 24 Aug	Lufthansa
24 Aug - 30 Aug	Lufthansa
12 Aug - 21 Aug	Lufthansa
22 Aug - 31 Aug	Scandinavian Airlines
26 Aug - 29 Aug	SWISS

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 $523

Return flights