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

Return flights

15 Sep - 22 Sep	AirAsia
04 Sep - 22 Sep	Scoot Tigerair
07 Sep - 22 Sep	Scoot Tigerair
11 Sep - 22 Sep	Jetstar
10 Sep - 27 Sep	AirAsia
06 Sep - 19 Sep	Jetstar
28 Sep - 13 Oct	Batik Air Malaysia
29 Sep - 27 Oct	Scoot Tigerair
29 Sep - 19 Oct	Scoot Tigerair
21 Sep - 06 Oct	Scoot Tigerair
18 Sep - 21 Sep	Jetstar
13 Sep - 17 Sep	AirAsia
05 Sep - 22 Sep	Scoot Tigerair
16 Sep - 16 Oct	Scoot Tigerair
23 Sep - 12 Oct	Scoot Tigerair
17 Sep - 18 Oct	Scoot Tigerair
01 Sep - 07 Sep	AirAsia
23 Sep - 14 Oct	Scoot Tigerair
17 Sep - 16 Oct	Scoot Tigerair
18 Sep - 06 Oct	Jetstar

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 772€

Return flights