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

Return flights

27 Aug - 17 Sep	Ryanair
25 Aug - 15 Sep	Ryanair
27 Aug - 10 Sep	Ryanair
31 Aug - 30 Sep	Turkish Airlines
23 Aug - 06 Sep	Etihad Airways
19 Aug - 02 Sep	Etihad Airways
25 Aug - 07 Sep	Etihad Airways
24 Aug - 09 Sep	Etihad Airways
17 Aug - 07 Sep	Aer Lingus
18 Aug - 01 Sep	Ryanair
15 Aug - 17 Aug	Ryanair
12 Aug - 26 Aug	Ryanair
24 Aug - 27 Aug	Ryanair
05 Aug - 20 Aug	Ryanair
04 Aug - 22 Aug	Aer Lingus
03 Aug - 10 Aug	Aer Lingus
02 Aug - 09 Aug	Aer Lingus
06 Aug - 20 Aug	Ryanair
04 Aug - 10 Aug	Ryanair
13 Aug - 20 Aug	Finnair

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 753€

Return flights