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

Return flights

17 Sep - 30 Sep	Scoot Tigerair
03 Sep - 15 Sep	AirAsia
15 Sep - 29 Sep	Scoot Tigerair
16 Sep - 30 Oct	AirAsia
09 Sep - 24 Sep	Scoot Tigerair
16 Sep - 28 Oct	Batik Air Malaysia
13 Sep - 24 Sep	Jetstar
17 Sep - 15 Oct	Scoot Tigerair
18 Sep - 25 Sep	AirAsia
15 Sep - 12 Oct	Scoot Tigerair
10 Sep - 24 Sep	AirAsia
16 Sep - 23 Sep	Scoot Tigerair
04 Sep - 14 Sep	AirAsia
19 Sep - 27 Sep	Scoot Tigerair
22 Sep - 06 Oct	Scoot Tigerair
30 Sep - 28 Oct	AirAsia
02 Sep - 21 Oct	AirAsia
15 Sep - 07 Oct	Scoot Tigerair
28 Sep - 21 Oct	AirAsia
08 Sep - 06 Oct	Scoot Tigerair

Also check the deals for one-way flights from Perth to London 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 Perth to London in September from 724€

Return flights