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

Return flights

10 Aug - 03 Sep	Cathay Pacific
10 Aug - 07 Sep	Cathay Pacific
17 Aug - 28 Aug	Cathay Pacific
13 Aug - 31 Aug	Cathay Pacific
04 Aug - 21 Aug	Cathay Pacific
11 Aug - 18 Aug	Cathay Pacific
01 Aug - 01 Sep	Batik Air Malaysia
16 Aug - 31 Aug	Cathay Pacific
16 Aug - 06 Sep	Cathay Pacific
14 Aug - 04 Sep	Cathay Pacific
05 Aug - 14 Aug	Cathay Pacific
25 Aug - 08 Sep	Singapore Airlines
01 Aug - 31 Aug	Singapore Airlines
06 Aug - 20 Aug	AirAsia
20 Aug - 14 Sep	AirAsia
24 Aug - 31 Aug	Cathay Pacific
24 Aug - 14 Sep	Cathay Pacific
26 Aug - 17 Sep	Cathay Pacific
24 Aug - 07 Sep	Cathay Pacific
04 Aug - 26 Aug	Batik Air Malaysia

Also check the deals for one-way flights from Perth to London 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 Perth to London in August from $958

Return flights