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

Return flights

05 Dec - 08 Dec	Air France
02 Dec - 10 Dec	Air France
02 Dec - 11 Dec	Air France
04 Dec - 08 Dec	Air France
04 Dec - 09 Dec	Air France
04 Dec - 10 Dec	Air France
05 Dec - 09 Dec	Air France
05 Dec - 11 Dec	Air France
08 Dec - 11 Dec	Air France
02 Dec - 09 Dec	Air France
10 Dec - 10 Jan	Air China
18 Dec - 05 Jan	Lufthansa
17 Dec - 02 Jan	Air China
18 Dec - 02 Jan	Air China
30 Dec - 14 Jan	Turkish Airlines
31 Dec - 14 Jan	Turkish Airlines
26 Dec - 06 Jan	Etihad Airways
26 Dec - 08 Jan	Etihad Airways
26 Dec - 20 Jan	Etihad Airways
19 Dec - 06 Jan	Etihad Airways

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 488€

Return flights