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

Return flights

30 Jul - 17 Aug	AirAsia
30 Jul - 19 Aug	AirAsia
30 Jul - 18 Aug	AirAsia
30 Jul - 15 Aug	AirAsia
24 Jul - 28 Jul	AirAsia
31 Jul - 04 Aug	AirAsia
25 Jul - 27 Jul	Royal Brunei
22 Jul - 29 Jul	AirAsia
30 Jul - 11 Aug	AirAsia
30 Jul - 13 Aug	AirAsia
24 Jul - 27 Jul	Royal Brunei
30 Jul - 08 Aug	AirAsia
30 Jul - 16 Aug	AirAsia
30 Jul - 03 Aug	AirAsia
18 Jul - 21 Jul	Royal Brunei
30 Jul - 31 Jul	AirAsia
30 Jul - 30 Jul	AirAsia
28 Jul - 29 Jul	AirAsia	direct
19 Jul - 22 Jul	Royal Brunei
27 Jul - 27 Jul	AirAsia	direct

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

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 July from $152

Return flights