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	Scoot Tigerair
16 Sep - 30 Sep	Scoot Tigerair
16 Sep - 23 Sep	Scoot Tigerair
09 Sep - 23 Sep	Scoot Tigerair
09 Sep - 16 Sep	Scoot Tigerair
23 Sep - 14 Oct	Scoot Tigerair
02 Sep - 16 Sep	Scoot Tigerair
14 Sep - 22 Sep	Singapore Airlines
17 Sep - 21 Sep	Singapore Airlines
02 Sep - 09 Sep	Scoot Tigerair
11 Sep - 17 Sep	Singapore Airlines
16 Sep - 03 Oct	Singapore Airlines
11 Sep - 28 Oct	Qatar Airways
23 Sep - 28 Oct	Qatar Airways
23 Sep - 07 Oct	Scoot Tigerair
29 Sep - 27 Oct	Qatar Airways
16 Sep - 13 Oct	Singapore Airlines
21 Sep - 14 Oct	Virgin Australia
11 Sep - 14 Oct	Qatar Airways
24 Sep - 14 Oct	Virgin Australia

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Perth to London in September from $926

Return flights