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

Return flights

30 Dec - 11 Jan	AirAsia
30 Dec - 22 Jan	AirAsia
31 Dec - 06 Jan	AirAsia
26 Dec - 17 Jan	Air India
26 Dec - 26 Jan	Air India
24 Dec - 28 Dec	Scoot
25 Dec - 09 Jan	AirAsia
26 Dec - 31 Dec	Air India
28 Dec - 02 Jan	Air India
25 Dec - 08 Jan	AirAsia
29 Dec - 06 Jan	AirAsia
26 Dec - 22 Jan	IndiGo
25 Dec - 29 Dec	AirAsia
26 Dec - 30 Dec	AirAsia
25 Dec - 30 Dec	AirAsia
25 Dec - 31 Dec	AirAsia
24 Dec - 25 Dec	AirAsia
26 Dec - 29 Dec	IndiGo
26 Dec - 28 Dec	Air India
27 Dec - 29 Dec	IndiGo

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 $308

Return flights