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

Return flights

09 Dec - 16 Dec	AirAsia
02 Dec - 08 Dec	AirAsia
08 Dec - 13 Dec	AirAsia
14 Dec - 21 Dec	AirAsia	direct
09 Dec - 12 Dec	AirAsia
02 Dec - 07 Dec	HK Express
02 Dec - 05 Dec	AirAsia	direct
03 Dec - 09 Dec	AirAsia	direct
02 Dec - 07 Dec	AirAsia	direct
05 Dec - 09 Dec	Jeju Air
01 Dec - 15 Jan	AirAsia	direct
30 Dec - 07 Jan	Jeju Air
29 Dec - 04 Jan	AirAsia	direct
23 Dec - 06 Jan	AirAsia	direct
27 Dec - 01 Jan	AirAsia	direct
25 Dec - 01 Jan	AirAsia	direct
26 Dec - 01 Jan	AirAsia	direct
10 Dec - 13 Jan	China Southern
30 Dec - 07 Jan	AirAsia	direct

Also check the deals for one-way flights from Kota Kinabalu to Seoul 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 Kota Kinabalu to Seoul in December from 177€

Return flights