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

Return flights

02 Dec - 08 Dec	AirAsia
05 Dec - 08 Dec	AirAsia
08 Dec - 10 Dec	AirAsia
06 Dec - 08 Dec	AirAsia
04 Dec - 08 Dec	AirAsia
02 Dec - 10 Dec	AirAsia
05 Dec - 10 Dec	AirAsia
01 Dec - 08 Dec	AirAsia
06 Dec - 10 Dec	AirAsia
04 Dec - 10 Dec	AirAsia
20 Dec - 04 Jan	Firefly
14 Dec - 03 Jan	AirAsia
31 Dec - 21 Jan	AirAsia
27 Dec - 15 Jan	AirAsia
13 Dec - 03 Jan	AirAsia
31 Dec - 20 Jan	AirAsia
29 Dec - 19 Jan	AirAsia
31 Dec - 19 Jan	AirAsia
29 Dec - 15 Jan	AirAsia
26 Dec - 15 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 298€

Return flights