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

Return flights

01 Sep - 08 Sep	Air China
01 Sep - 22 Sep	Air China
06 Sep - 13 Sep	Etihad Airways
06 Sep - 20 Sep	LOT
02 Sep - 23 Sep	Etihad Airways
02 Sep - 09 Sep	Saudia
01 Sep - 11 Sep	Air China
04 Sep - 11 Sep	Air China
05 Sep - 19 Sep	Saudia
04 Sep - 25 Sep	Etihad Airways
01 Sep - 06 Oct	British Airways
08 Sep - 05 Oct	Qatar Airways
07 Sep - 06 Oct	Qatar Airways
24 Sep - 03 Oct	Qatar Airways
22 Sep - 06 Oct	Qatar Airways
12 Sep - 03 Oct	Qatar Airways
28 Sep - 04 Oct	Qatar Airways
21 Sep - 04 Oct	Qatar Airways
12 Sep - 02 Oct	Thai Airways
25 Sep - 02 Oct	Thai Airways

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 $813

Return flights