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

Return flights

05 Sep - 05 Sep	Thai AirAsia
04 Sep - 08 Sep	AirAsia
03 Sep - 09 Sep	AirAsia
03 Sep - 08 Sep	AirAsia
04 Sep - 10 Sep	AirAsia
03 Sep - 10 Sep	AirAsia
04 Sep - 16 Sep	AirAsia
03 Sep - 16 Sep	AirAsia
04 Sep - 11 Sep	AirAsia
03 Sep - 11 Sep	AirAsia
24 Sep - 12 Oct	AirAsia
24 Sep - 14 Oct	AirAsia
24 Sep - 13 Oct	AirAsia
26 Sep - 15 Oct	AirAsia
26 Sep - 12 Oct	AirAsia
26 Sep - 14 Oct	AirAsia
19 Sep - 04 Oct	AirAsia
23 Sep - 12 Oct	AirAsia
26 Sep - 13 Oct	AirAsia
19 Sep - 06 Oct	AirAsia

Also check the deals for one-way flights from Bangkok to Perth 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 Bangkok to Perth in September from $302

Return flights