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

Return flights

16 Aug - 25 Aug	AirAsia
16 Aug - 03 Sep	AirAsia
16 Aug - 31 Aug	AirAsia
29 Aug - 31 Aug	AirAsia	direct
29 Aug - 09 Sep	AirAsia	direct
29 Aug - 14 Sep	AirAsia	direct
29 Aug - 03 Sep	AirAsia	direct
29 Aug - 13 Sep	AirAsia	direct
07 Aug - 25 Aug	AirAsia
16 Aug - 02 Sep	AirAsia
29 Aug - 02 Sep	AirAsia	direct
24 Aug - 25 Aug	AirAsia	direct
16 Aug - 27 Aug	AirAsia
16 Aug - 17 Aug	AirAsia
16 Aug - 19 Aug	AirAsia
16 Aug - 18 Aug	AirAsia
16 Aug - 24 Aug	AirAsia
24 Aug - 09 Sep	AirAsia	direct
24 Aug - 03 Sep	AirAsia	direct
16 Aug - 05 Sep	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 $136

Return flights