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

Return flights

01 Dec - 30 Jan	China Eastern
04 Dec - 11 Dec	China Eastern
12 Dec - 30 Jan	Air China
02 Dec - 12 Dec	Shenzhen Airlines
17 Dec - 24 Dec	Air China
12 Dec - 29 Dec	Air China
02 Dec - 09 Dec	Air China
02 Dec - 11 Dec	Air China
06 Dec - 11 Dec	Air China
05 Dec - 07 Dec	Air China
05 Dec - 08 Dec	Air China
05 Dec - 09 Dec	Air China
12 Dec - 10 Jan	Air China
13 Dec - 10 Jan	Air China
12 Dec - 09 Jan	Air China
04 Dec - 08 Jan	Air France
26 Dec - 01 Jan	Air France
26 Dec - 07 Jan	Air France
26 Dec - 05 Jan	Air France
26 Dec - 08 Jan	Air France

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

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 December from 450€

Return flights