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

Return flights

16 Oct - 21 Oct	Jeju Air
16 Oct - 23 Oct	Jeju Air
16 Oct - 18 Oct	Jeju Air
15 Oct - 18 Oct	Jeju Air
14 Oct - 18 Oct	Jeju Air
24 Oct - 27 Oct	Jeju Air
16 Oct - 22 Oct	Jeju Air
15 Oct - 22 Oct	Jeju Air
13 Oct - 18 Oct	Jeju Air
10 Oct - 15 Oct	Jeju Air
30 Oct - 02 Nov	Jeju Air
23 Oct - 10 Nov	Jeju Air
31 Oct - 04 Nov	Singapore Airlines
26 Oct - 01 Nov	Korean Air
25 Oct - 01 Nov	Korean Air

Also check the deals for one-way flights from Busan to Kota Kinabalu in October.

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 October from $217

Return flights