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

Return flights

01 Sep - 10 Sep	Batik Air Malaysia
05 Sep - 21 Sep	AirAsia
17 Sep - 23 Oct	AirAsia
07 Sep - 14 Sep	AirAsia
07 Sep - 17 Sep	AirAsia
17 Sep - 24 Sep	AirAsia
07 Sep - 24 Sep	AirAsia
05 Sep - 17 Sep	AirAsia
05 Sep - 24 Sep	AirAsia
04 Sep - 14 Sep	Malaysia Airlines
07 Sep - 11 Sep	AirAsia
17 Sep - 08 Oct	AirAsia
17 Sep - 03 Oct	AirAsia
17 Sep - 01 Oct	AirAsia
16 Sep - 03 Oct	AirAsia
16 Sep - 01 Oct	AirAsia
19 Sep - 03 Oct	Malaysia Airlines
21 Sep - 08 Oct	AirAsia
21 Sep - 03 Oct	AirAsia
25 Sep - 08 Oct	AirAsia

Also check the deals for one-way flights from Perth to Colombo 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 Colombo

Cheap car rent in Colombo

Cheapest return flights from Perth to Colombo in September from $419

Return flights