AirHint found the following cheapest return flights from Busan (PUS) to Kota Kinabalu (BKI) in May 2026 (see full year).

Return flights

13 May - 17 May	Korean Air
22 May - 26 May	Singapore Airlines
16 May - 23 May	Singapore Airlines
22 May - 25 May	Singapore Airlines
15 May - 18 May	Singapore Airlines
15 May - 22 May	Singapore Airlines
02 May - 05 May	Singapore Airlines
23 May - 25 May	Singapore Airlines
01 May - 05 May	Korean Air
01 May - 04 May	Korean Air

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

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 May from $789

Return flights