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

Return flights

14 Aug - 29 Aug	Thai AirAsia
29 Aug - 05 Sep	Thai AirAsia
20 Aug - 23 Aug	Thai AirAsia
22 Aug - 01 Sep	AirAsia
22 Aug - 30 Aug	AirAsia
24 Aug - 01 Sep	AirAsia
24 Aug - 30 Aug	AirAsia
22 Aug - 11 Sep	AirAsia
24 Aug - 11 Sep	AirAsia
22 Aug - 28 Aug	AirAsia
24 Aug - 28 Aug	AirAsia
22 Aug - 10 Sep	AirAsia
07 Aug - 24 Aug	Scoot Tigerair
24 Aug - 10 Sep	AirAsia
22 Aug - 03 Sep	AirAsia
22 Aug - 08 Sep	AirAsia
22 Aug - 02 Sep	AirAsia
02 Aug - 04 Aug	AirAsia
20 Aug - 30 Aug	AirAsia
11 Aug - 30 Aug	AirAsia

Also check the deals for one-way flights from Chiang Mai 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 Chiang Mai to Perth in August from 286€

Return flights