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

Return flights

24 Oct - 27 Oct	Jeju Air
16 Oct - 23 Oct	Jeju Air
16 Oct - 20 Oct	Jeju Air
14 Oct - 20 Oct	Jeju Air
29 Oct - 03 Nov	Jeju Air
15 Oct - 21 Oct	Jeju Air
23 Oct - 26 Oct	Jeju Air
24 Oct - 26 Oct	Jeju Air
24 Oct - 31 Oct	Jeju Air
10 Oct - 14 Oct	Jeju Air
19 Oct - 23 Oct	Jeju Air
22 Oct - 21 Nov	Jeju Air
29 Oct - 02 Nov	Jeju Air
29 Oct - 01 Nov	Singapore Airlines
29 Oct - 04 Nov	Singapore Airlines

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 225€

Return flights