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

Return flights

23 Aug - 29 Aug	Air China
17 Aug - 23 Aug	Air China
21 Aug - 29 Aug	Air China
17 Aug - 28 Aug	Air China
16 Aug - 23 Aug	Air China
16 Aug - 20 Aug	Air China
15 Aug - 23 Aug	Air China
10 Aug - 21 Aug	Air China
15 Aug - 20 Aug	Air China
12 Aug - 19 Aug	Air China

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 $766

Return flights