AirHint found the following cheapest return flights from London (STN) to Perth (PER) in September 2026 (see full year).

Return flights

06 Sep - 20 Sep	Ryanair
01 Sep - 25 Sep	Ryanair
03 Sep - 26 Sep	Ryanair
02 Sep - 23 Sep	Ryanair
11 Sep - 26 Sep	Ryanair
11 Sep - 19 Sep	Ryanair
03 Sep - 17 Sep	Ryanair
07 Sep - 30 Sep	Ryanair
12 Sep - 19 Sep	Turkish Airlines
07 Sep - 27 Sep	Ryanair
28 Sep - 04 Oct	Emirates
21 Sep - 04 Oct	Emirates
01 Sep - 06 Oct	Emirates
08 Sep - 05 Oct	Emirates
22 Sep - 06 Oct	Emirates
01 Sep - 01 Oct	Emirates
07 Sep - 06 Oct	Emirates
28 Sep - 02 Oct	Emirates
24 Sep - 03 Oct	Emirates
12 Sep - 02 Oct	Emirates

Also check the deals for one-way flights from London 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 London to Perth in September from 885€

Return flights