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

Return flights

08 Sep - 15 Sep	Jetstar
12 Sep - 16 Sep	Jetstar
09 Sep - 16 Sep	AirAsia
10 Sep - 17 Sep	Jetstar
03 Sep - 10 Sep	Jetstar	direct
03 Sep - 07 Sep	Jetstar	direct
10 Sep - 15 Oct	Jetstar	direct
01 Sep - 26 Oct	Jetstar	direct
04 Sep - 18 Sep	AirAsia
14 Sep - 19 Sep	Jetstar
14 Sep - 21 Sep	Jetstar
08 Sep - 15 Sep	Jetstar	direct
30 Sep - 10 Oct	Scoot Tigerair
29 Sep - 05 Oct	Jetstar	direct
30 Sep - 07 Oct	Scoot Tigerair
22 Sep - 12 Oct	Thai AirAsia
24 Sep - 12 Oct	Thai AirAsia
24 Sep - 14 Oct	Thai AirAsia
24 Sep - 15 Oct	Thai AirAsia
22 Sep - 13 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 208€

Return flights