AirHint found the following cheapest return flights from Kota Kinabalu (BKI) to Singapore (SIN) in August 2025 (see full year).

Return flights

30 Aug - 15 Sep	AirAsia	direct
30 Aug - 08 Sep	AirAsia	direct
30 Aug - 09 Sep	AirAsia	direct
30 Aug - 19 Sep	AirAsia	direct
30 Aug - 14 Sep	AirAsia	direct
30 Aug - 02 Sep	Malaysia Airlines
30 Aug - 07 Sep	AirAsia	direct
30 Aug - 04 Sep	AirAsia	direct
30 Aug - 12 Sep	AirAsia	direct
30 Aug - 16 Sep	AirAsia	direct
28 Aug - 31 Aug	Royal Brunei
24 Aug - 26 Aug	Royal Brunei
17 Aug - 20 Aug	AirAsia
30 Aug - 30 Aug	Malaysia Airlines
21 Aug - 31 Aug	AirAsia
28 Aug - 31 Aug	AirAsia	direct
23 Aug - 31 Aug	AirAsia
24 Aug - 31 Aug	AirAsia	direct
20 Aug - 31 Aug	AirAsia
26 Aug - 31 Aug	AirAsia

Also check the deals for one-way flights from Kota Kinabalu to Singapore in August.

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 Singapore in August from 140€

Return flights