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

Return flights

02 Dec - 05 Dec	AirAsia
15 Dec - 31 Dec	Air India
17 Dec - 26 Dec	Air India
20 Dec - 02 Jan	Air India
19 Dec - 08 Jan	AirAsia
23 Dec - 26 Dec	Air India
21 Dec - 04 Jan	IndiGo
14 Dec - 16 Dec	Air India
02 Dec - 07 Dec	Air India
03 Dec - 07 Dec	Air India
02 Dec - 09 Dec	Air India
25 Dec - 18 Jan	Air India
22 Dec - 19 Jan	Air India
26 Dec - 31 Dec	Air India
23 Dec - 31 Dec	Air India
27 Dec - 01 Jan	Air India
14 Dec - 04 Jan	AirAsia
19 Dec - 08 Jan	Singapore Airlines	direct
17 Dec - 04 Jan	AirAsia
15 Dec - 04 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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from Colombo to Singapore in December from $319

Return flights