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

Return flights

07 Dec - 09 Dec	AirAsia
29 Dec - 05 Jan	AirAsia	direct
11 Dec - 14 Dec	AirAsia	direct
30 Dec - 06 Jan	AirAsia	direct
18 Dec - 21 Dec	AirAsia
16 Dec - 19 Dec	AirAsia
29 Dec - 03 Jan	AirAsia	direct
26 Dec - 28 Dec	AirAsia	direct
07 Dec - 09 Dec	Scoot	direct
13 Dec - 20 Dec	AirAsia	direct
09 Dec - 12 Dec	Scoot	direct
16 Dec - 19 Dec	Scoot	direct
27 Dec - 01 Jan	AirAsia
18 Dec - 21 Dec	Scoot	direct
29 Dec - 02 Jan	Scoot	direct
27 Dec - 01 Jan	Scoot	direct

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

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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from Kota Kinabalu to Singapore in December from 149€

Return flights