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

One-Way flights

10 Dec	T'way Air	direct
13 Dec	T'way Air	direct
05 Dec	T'way Air	direct
03 Dec	T'way Air	direct
06 Dec	T'way Air	direct
17 Dec	T'way Air	direct
12 Dec	T'way Air	direct
15 Dec	Philippine Airlines
29 Dec	Qatar Airways
16 Dec	Qatar Airways

Also check the deals for return 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 one-way flights from Seoul to Barcelona in December from 207€

One-Way flights