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

Return flights

31 Aug - 30 Sep	Shenzhen Airlines
28 Aug - 16 Sep	Etihad Airways
27 Aug - 16 Sep	Etihad Airways
27 Aug - 15 Sep	Etihad Airways
31 Aug - 14 Sep	Shenzhen Airlines
24 Aug - 09 Sep	Gulf Air
27 Aug - 17 Sep	Etihad Airways
28 Aug - 15 Sep	Etihad Airways
27 Aug - 14 Sep	Etihad Airways
30 Aug - 16 Sep	Gulf Air
24 Aug - 31 Aug	Gulf Air
27 Aug - 31 Aug	Gulf Air
14 Aug - 18 Aug	Air India
19 Aug - 26 Aug	Gulf Air
22 Aug - 31 Aug	Gulf Air
23 Aug - 26 Aug	Gulf Air
14 Aug - 17 Aug	Air India
15 Aug - 18 Aug	Air India
13 Aug - 23 Aug	Thai Airways
22 Aug - 30 Aug	Air India

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 683€

Return flights