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

Return flights

23 Aug - 17 Sep	Batik Air Malaysia
24 Aug - 27 Aug	AirAsia
18 Aug - 01 Sep	AirAsia
19 Aug - 31 Aug	AirAsia
24 Aug - 30 Aug	AirAsia
17 Aug - 06 Sep	Jetstar
24 Aug - 25 Sep	AirAsia
31 Aug - 21 Sep	Jetstar
17 Aug - 01 Sep	Jetstar
29 Aug - 06 Sep	AirAsia
20 Aug - 07 Sep	AirAsia
20 Aug - 23 Aug	AirAsia
26 Aug - 05 Sep	AirAsia
18 Aug - 31 Aug	Batik Air Malaysia
23 Aug - 07 Sep	Jetstar
17 Aug - 31 Aug	AirAsia
19 Aug - 30 Aug	Jetstar
16 Aug - 30 Aug	VietJet Air
23 Aug - 27 Aug	AirAsia
19 Aug - 26 Aug	Scoot

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 800€

Return flights