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

Return flights

01 Sep - 07 Sep	Jetstar
02 Sep - 09 Sep	Thai AirAsia
05 Sep - 12 Sep	Jetstar
05 Sep - 10 Sep	Jetstar	direct
05 Sep - 08 Sep	Jetstar	direct
05 Sep - 12 Sep	Jetstar	direct
07 Sep - 14 Sep	Jetstar	direct
03 Sep - 07 Sep	Jetstar	direct
03 Sep - 13 Oct	Jetstar	direct
14 Sep - 19 Oct	Jetstar	direct
14 Sep - 21 Sep	Jetstar
07 Sep - 18 Sep	Jetstar
21 Sep - 01 Oct	Jetstar
21 Sep - 01 Oct	Jetstar	direct
04 Sep - 02 Oct	AirAsia
24 Sep - 14 Oct	Thai AirAsia
24 Sep - 13 Oct	Thai AirAsia
23 Sep - 13 Oct	Thai AirAsia
23 Sep - 14 Oct	Thai AirAsia
24 Sep - 12 Oct	Thai 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 $244

Return flights