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

Return flights

08 Sep - 20 Oct	Ryanair
07 Sep - 14 Sep	Etihad Airways
01 Sep - 17 Sep	Ryanair
23 Sep - 17 Oct	SWISS
12 Sep - 17 Sep	Ryanair
15 Sep - 03 Oct	Ryanair
12 Sep - 02 Oct	Ryanair
06 Sep - 13 Sep	Etihad Airways
04 Sep - 25 Sep	Qatar Airways
18 Sep - 30 Sep	Ryanair
22 Sep - 13 Oct	Aer Lingus
09 Sep - 23 Sep	Air France
11 Sep - 12 Sep	Ryanair
15 Sep - 05 Oct	Aer Lingus
03 Sep - 24 Oct	Aer Lingus
03 Sep - 30 Oct	Etihad Airways
10 Sep - 22 Sep	British Airways
18 Sep - 28 Sep	British Airways
23 Sep - 07 Oct	Emirates
20 Sep - 04 Oct	Emirates

Also check the deals for one-way flights from Dublin to Perth in September.

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 September from $854

Return flights