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

Return flights

09 Dec - 10 Dec	AirAsia
01 Dec - 06 Dec	AirAsia
01 Dec - 10 Dec	AirAsia
08 Dec - 10 Dec	AirAsia
05 Dec - 06 Dec	AirAsia
05 Dec - 10 Dec	AirAsia
01 Dec - 05 Dec	AirAsia
01 Dec - 03 Dec	AirAsia
01 Dec - 04 Dec	AirAsia
09 Dec - 14 Dec	AirAsia
26 Dec - 09 Jan	AirAsia
25 Dec - 09 Jan	AirAsia
18 Dec - 08 Jan	AirAsia
18 Dec - 04 Jan	AirAsia
19 Dec - 09 Jan	AirAsia
24 Dec - 09 Jan	AirAsia
16 Dec - 04 Jan	AirAsia
18 Dec - 05 Jan	AirAsia
16 Dec - 05 Jan	AirAsia
18 Dec - 03 Jan	AirAsia

Also check the deals for one-way flights from Colombo 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.

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Cheapest return flights from Colombo to Singapore in December from $367

Return flights