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

Return flights

17 Dec - 24 Dec	Air China
18 Dec - 24 Dec	Air China
15 Dec - 23 Dec	Air China
03 Dec - 09 Dec	Air Busan
03 Dec - 31 Jan	Air Busan
31 Dec - 15 Jan	Singapore Airlines
04 Dec - 07 Dec	Singapore Airlines
31 Dec - 11 Jan	Singapore Airlines
23 Dec - 26 Dec	Air China
29 Dec - 03 Jan	Air China
24 Dec - 28 Dec	Singapore Airlines
24 Dec - 31 Dec	Singapore Airlines
06 Dec - 14 Dec	Singapore Airlines
24 Dec - 01 Jan	Singapore Airlines
09 Dec - 15 Dec	Singapore Airlines
27 Dec - 04 Jan	Singapore Airlines
25 Dec - 03 Jan	Air China
24 Dec - 02 Jan	Singapore Airlines
30 Dec - 03 Jan	Japan Airlines
26 Dec - 04 Jan	Japan Airlines

Also check the deals for one-way flights from Busan 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 Busan to Barcelona in December from $476

Return flights