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

Return flights

04 Dec - 11 Dec	Firefly
01 Dec - 11 Dec	AirAsia
15 Dec - 31 Dec	Scoot
06 Dec - 21 Dec	Firefly
01 Dec - 05 Dec	AirAsia
01 Dec - 02 Dec	AirAsia
01 Dec - 10 Dec	AirAsia
01 Dec - 12 Dec	AirAsia
01 Dec - 03 Dec	AirAsia
01 Dec - 09 Dec	AirAsia
29 Dec - 06 Jan	Firefly
26 Dec - 15 Jan	AirAsia
24 Dec - 13 Jan	AirAsia
26 Dec - 14 Jan	AirAsia
26 Dec - 13 Jan	AirAsia
30 Dec - 19 Jan	AirAsia
28 Dec - 15 Jan	AirAsia
30 Dec - 15 Jan	AirAsia
28 Dec - 14 Jan	AirAsia
30 Dec - 14 Jan	AirAsia

Also check the deals for one-way flights from Singapore to Colombo 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 Singapore to Colombo in December from $319

Return flights