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

Return flights

22 Sep - 24 Sep	AirAsia
09 Sep - 23 Sep	Jetstar
11 Sep - 15 Sep	Scoot
11 Sep - 16 Sep	Jetstar
22 Sep - 29 Sep	Scoot
22 Sep - 28 Sep	Scoot
10 Sep - 23 Sep	AirAsia
10 Sep - 21 Sep	AirAsia
13 Sep - 20 Sep	Batik Air Malaysia
10 Sep - 17 Sep	AirAsia
12 Sep - 23 Oct	Scoot
13 Sep - 23 Oct	Batik Air Malaysia
29 Sep - 05 Oct	AirAsia
17 Sep - 10 Oct	Scoot
20 Sep - 11 Oct	Jetstar
23 Sep - 14 Oct	Scoot
22 Sep - 29 Oct	Emirates
23 Sep - 11 Oct	Scoot
30 Sep - 21 Oct	Scoot
30 Sep - 14 Oct	Scoot

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 $925

Return flights