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

Return flights

19 Aug - 26 Aug	British Airways
13 Aug - 30 Aug	British Airways
11 Aug - 31 Aug	British Airways
17 Aug - 31 Aug	British Airways
11 Aug - 26 Aug	British Airways
23 Aug - 30 Aug	Lufthansa
11 Aug - 18 Aug	Lufthansa
03 Aug - 20 Aug	KLM
03 Aug - 17 Aug	KLM
09 Aug - 16 Aug	Lufthansa
26 Aug - 02 Sep	SWISS
25 Aug - 01 Sep	SWISS
17 Aug - 07 Sep	KLM
27 Aug - 03 Sep	SWISS
31 Aug - 15 Sep	Condor

Also check the deals for one-way flights from London to Perth in August.

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 August from $1566

Return flights