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

Return flights

09 Dec - 12 Dec	AirAsia
04 Dec - 08 Dec	AirAsia
02 Dec - 08 Dec	AirAsia
03 Dec - 10 Dec	AirAsia
04 Dec - 07 Dec	AirAsia
02 Dec - 11 Dec	AirAsia
07 Dec - 15 Jan	AirAsia
02 Dec - 07 Dec	AirAsia
16 Dec - 19 Jan	Scoot
06 Dec - 13 Dec	AirAsia
09 Dec - 14 Dec	AirAsia
01 Dec - 08 Dec	Scoot
02 Dec - 11 Jan	Scoot
30 Dec - 22 Jan	IndiGo
26 Dec - 15 Jan	IndiGo
27 Dec - 16 Jan	IndiGo
26 Dec - 17 Jan	IndiGo
31 Dec - 07 Jan	AirAsia
17 Dec - 08 Jan	Scoot
31 Dec - 05 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 310€

Return flights