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

Return flights

01 Sep - 03 Sep	FitsAir
10 Sep - 09 Oct	FitsAir
08 Sep - 13 Sep	AirAsia
03 Sep - 04 Sep	FitsAir
24 Sep - 28 Sep	IndiGo
18 Sep - 28 Sep	IndiGo
09 Sep - 10 Sep	IndiGo
11 Sep - 16 Sep	IndiGo
07 Sep - 09 Sep	IndiGo
04 Sep - 06 Sep	IndiGo
04 Sep - 08 Sep	IndiGo
23 Sep - 07 Oct	AirAsia
07 Sep - 10 Oct	Singapore Airlines	direct
30 Sep - 11 Oct	AirAsia
29 Sep - 11 Oct	AirAsia
24 Sep - 11 Oct	AirAsia
28 Sep - 04 Oct	Air India
30 Sep - 02 Oct	AirAsia
30 Sep - 05 Oct	AirAsia
28 Sep - 01 Oct	IndiGo

Also check the deals for one-way flights from Colombo to Singapore in September.

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 September from 216€

Return flights