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

Return flights

04 Aug - 18 Aug	AirAsia
13 Aug - 19 Aug	AirAsia
05 Aug - 19 Aug	AirAsia
13 Aug - 18 Aug	AirAsia
05 Aug - 18 Aug	AirAsia
08 Aug - 19 Aug	AirAsia
13 Aug - 29 Aug	AirAsia
08 Aug - 18 Aug	AirAsia
05 Aug - 12 Aug	AirAsia
25 Aug - 29 Aug	AirAsia
31 Aug - 21 Sep	AirAsia
31 Aug - 16 Sep	AirAsia
27 Aug - 16 Sep	AirAsia
30 Aug - 16 Sep	AirAsia
13 Aug - 01 Sep	AirAsia
25 Aug - 12 Sep	AirAsia
31 Aug - 12 Sep	AirAsia
23 Aug - 12 Sep	AirAsia
25 Aug - 01 Sep	AirAsia
31 Aug - 01 Sep	AirAsia

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

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 Colombo to Perth in August from $441

Return flights