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

Return flights

21 Sep - 13 Oct	Pegasus Airlines
24 Sep - 14 Oct	Ryanair
27 Sep - 27 Oct	Pegasus Airlines
26 Sep - 18 Oct	Ryanair
27 Sep - 18 Oct	Pegasus Airlines
20 Sep - 04 Oct	Pegasus Airlines
22 Sep - 29 Sep	Ryanair
26 Sep - 04 Oct	Ryanair
28 Sep - 10 Oct	Ryanair
23 Sep - 30 Sep	Ryanair
20 Sep - 27 Sep	Pegasus Airlines
28 Sep - 05 Oct	Qantas

Also check the deals for one-way flights from Birmingham 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 Birmingham to Perth in September from $976

Return flights