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

Return flights

14 Sep - 22 Sep	AirAsia
08 Sep - 15 Sep	AirAsia
13 Sep - 27 Sep	Batik Air Malaysia
12 Sep - 25 Sep	Batik Air Malaysia
05 Sep - 26 Sep	Scoot
02 Sep - 22 Sep	AirAsia
03 Sep - 10 Sep	AirAsia
02 Sep - 15 Sep	AirAsia
02 Sep - 18 Sep	AirAsia
01 Sep - 18 Sep	AirAsia
19 Sep - 01 Oct	AirAsia
30 Sep - 18 Oct	AirAsia
08 Sep - 13 Oct	AirAsia
30 Sep - 16 Oct	AirAsia
16 Sep - 16 Oct	AirAsia
16 Sep - 01 Oct	AirAsia
30 Sep - 13 Oct	AirAsia
30 Sep - 01 Oct	AirAsia
30 Sep - 14 Oct	AirAsia
30 Sep - 15 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 $402

Return flights