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

Return flights

31 Dec - 20 Jan	Air China
31 Dec - 22 Jan	Air China
05 Dec - 13 Dec	Air China
04 Dec - 13 Dec	Air China
30 Dec - 21 Jan	Korean Air
10 Dec - 14 Dec	Korean Air
10 Dec - 16 Dec	Korean Air
08 Dec - 12 Dec	Korean Air
03 Dec - 12 Dec	Korean Air
04 Dec - 12 Dec	Korean Air
09 Dec - 23 Dec	Korean Air
12 Dec - 23 Dec	Korean Air
25 Dec - 08 Jan	Korean Air
19 Dec - 23 Dec	Korean Air
23 Dec - 01 Jan	Korean Air
30 Dec - 22 Jan	Korean Air
29 Dec - 03 Jan	Air China
25 Dec - 04 Jan	Korean Air
28 Dec - 04 Jan	Korean Air
28 Dec - 02 Jan	Korean Air

Also check the deals for one-way flights from Busan to Madrid 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 Madrid in December from 349€

Return flights