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

Return flights

27 Aug - 10 Sep	Aegean Airlines
27 Aug - 03 Sep	Aegean Airlines
27 Aug - 04 Sep	Aegean Airlines
26 Aug - 09 Sep	Aegean Airlines
31 Aug - 07 Sep	China Eastern
26 Aug - 23 Sep	Aegean Airlines
27 Aug - 06 Sep	Aegean Airlines
26 Aug - 31 Aug	Air India
25 Aug - 16 Sep	Aegean Airlines
26 Aug - 02 Sep	Air India
25 Aug - 30 Sep	Aegean Airlines
28 Aug - 31 Aug	China Eastern
24 Aug - 31 Aug	Aegean Airlines
24 Aug - 27 Aug	Aegean Airlines
26 Aug - 30 Aug	Aegean Airlines
25 Aug - 31 Aug	Aegean Airlines
24 Aug - 30 Aug	Aegean Airlines
29 Aug - 31 Aug	China Eastern
26 Aug - 29 Aug	Aegean Airlines
27 Aug - 29 Aug	Hainan Airlines

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 $962

Return flights