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

Return flights

18 Sep - 25 Sep	Batik Air Malaysia
20 Sep - 21 Sep	AirAsia
19 Sep - 21 Sep	AirAsia
20 Sep - 22 Sep	AirAsia
19 Sep - 22 Sep	AirAsia
21 Sep - 22 Sep	AirAsia
28 Sep - 28 Oct	AirAsia
23 Sep - 27 Sep	AirAsia
30 Sep - 18 Oct	Jetstar
19 Sep - 20 Sep	AirAsia
23 Sep - 25 Sep	AirAsia
23 Sep - 26 Sep	AirAsia
23 Sep - 01 Oct	AirAsia
28 Sep - 15 Oct	AirAsia
19 Sep - 01 Oct	AirAsia
21 Sep - 01 Oct	AirAsia
20 Sep - 01 Oct	AirAsia
28 Sep - 14 Oct	Batik Air Malaysia
28 Sep - 19 Oct	AirAsia
28 Sep - 18 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.

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Cheapest return flights from Perth to Colombo in September from 405€

Return flights