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

Return flights

20 Aug - 15 Sep	Etihad Airways
31 Aug - 15 Sep	Etihad Airways
31 Aug - 13 Sep	Etihad Airways
20 Aug - 17 Sep	Etihad Airways
19 Aug - 09 Sep	Etihad Airways
25 Aug - 09 Sep	Etihad Airways
19 Aug - 10 Sep	Etihad Airways
18 Aug - 06 Sep	Etihad Airways
22 Aug - 06 Sep	Etihad Airways
30 Aug - 13 Sep	Etihad Airways
21 Aug - 24 Aug	Aer Lingus
20 Aug - 25 Aug	Ryanair
18 Aug - 25 Aug	Ryanair
22 Aug - 31 Aug	Ryanair
23 Aug - 30 Aug	Etihad Airways
11 Aug - 25 Aug	Ryanair
13 Aug - 28 Aug	Ryanair
14 Aug - 28 Aug	Ryanair
08 Aug - 29 Aug	Aer Lingus
04 Aug - 18 Aug	Etihad Airways

Also check the deals for one-way flights from Dublin 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 Dublin to Perth in August from 771€

Return flights