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

Return flights

03 Sep - 17 Sep	Jetstar
17 Sep - 08 Oct	Jetstar	direct
10 Sep - 17 Sep	Jetstar	direct
14 Sep - 21 Sep	Jetstar	direct
03 Sep - 17 Sep	Jetstar	direct
03 Sep - 10 Sep	Jetstar	direct
17 Sep - 22 Sep	Jetstar	direct
19 Sep - 22 Sep	Jetstar	direct
15 Sep - 19 Sep	Jetstar	direct
01 Sep - 20 Oct	Jetstar	direct
26 Sep - 01 Oct	Jetstar	direct
03 Sep - 04 Sep	Thai AirAsia
03 Sep - 11 Sep	Thai AirAsia
25 Sep - 14 Oct	AirAsia
25 Sep - 13 Oct	AirAsia
23 Sep - 13 Oct	AirAsia
25 Sep - 12 Oct	AirAsia
25 Sep - 15 Oct	AirAsia
20 Sep - 11 Oct	AirAsia
25 Sep - 11 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 $250

Return flights