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

Return flights

10 Dec - 14 Dec	HK Express
10 Dec - 15 Dec	HK Express
12 Dec - 15 Dec	HK Express
04 Dec - 08 Dec	Jeju Air
01 Dec - 03 Dec	HK Express
06 Dec - 11 Dec	HK Express
19 Dec - 25 Dec	Jeju Air
03 Dec - 08 Dec	HK Express
06 Dec - 10 Dec	HK Express
05 Dec - 09 Dec	HK Express
30 Dec - 02 Jan	Jeju Air
24 Dec - 03 Jan	Jeju Air
24 Dec - 02 Jan	Jeju Air
26 Dec - 01 Jan	Jeju Air
27 Dec - 01 Jan	Jeju Air
27 Dec - 02 Jan	Jeju Air
31 Dec - 04 Jan	HK Express
29 Dec - 02 Jan	Jeju Air
31 Dec - 03 Jan	HK Express
30 Dec - 04 Jan	Jeju Air

Also check the deals for one-way flights from Busan to Kota Kinabalu 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 Kota Kinabalu in December from $308

Return flights