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

Return flights

10 Sep - 17 Sep	Jetstar	direct
03 Sep - 10 Sep	Jetstar	direct
24 Sep - 08 Oct	Jetstar	direct
29 Sep - 11 Oct	Thai VietJet Air
05 Sep - 07 Sep	Jetstar	direct
07 Sep - 19 Sep	Jetstar	direct
19 Sep - 22 Sep	Jetstar	direct
24 Sep - 15 Oct	Jetstar	direct
19 Sep - 18 Oct	Scoot Tigerair
20 Sep - 11 Oct	Scoot Tigerair
05 Sep - 09 Sep	Jetstar
05 Sep - 13 Sep	Jetstar
21 Sep - 28 Sep	Jetstar
28 Sep - 04 Oct	Thai AirAsia
24 Sep - 30 Sep	Jetstar
09 Sep - 10 Sep	AirAsia
19 Sep - 25 Oct	Scoot Tigerair
26 Sep - 04 Oct	Scoot Tigerair
23 Sep - 12 Oct	AirAsia
23 Sep - 13 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 224€

Return flights