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

Return flights

01 Sep - 04 Sep	Jeju Air
24 Sep - 29 Sep	Jeju Air
25 Sep - 29 Sep	Jeju Air
26 Sep - 29 Sep	Jeju Air
24 Sep - 01 Oct	Jeju Air
21 Sep - 25 Sep	Jeju Air
01 Sep - 03 Sep	Jeju Air
21 Sep - 29 Sep	Jeju Air
11 Sep - 16 Sep	Jeju Air
19 Sep - 22 Sep	Jeju Air
23 Sep - 30 Sep	Jeju Air
28 Sep - 02 Oct	Jeju Air
27 Sep - 04 Oct	Jeju Air
29 Sep - 06 Oct	Jeju Air
29 Sep - 02 Oct	Korean Air
30 Sep - 06 Oct	Jeju Air
29 Sep - 10 Oct	Jeju Air
30 Sep - 07 Oct	Jeju Air

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

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 September from 219€

Return flights