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

Return flights

08 Dec - 26 Jan	Etihad Airways
04 Dec - 14 Jan	Aer Lingus
29 Dec - 21 Jan	SWISS
29 Dec - 19 Jan	SWISS
30 Dec - 20 Jan	Lufthansa
01 Dec - 15 Dec	Aer Lingus
14 Dec - 11 Jan	Aer Lingus
01 Dec - 08 Dec	Etihad Airways
08 Dec - 31 Dec	Ryanair
10 Dec - 07 Jan	Ryanair
04 Dec - 08 Jan	Aer Lingus
04 Dec - 11 Dec	Etihad Airways
11 Dec - 08 Jan	Ryanair
16 Dec - 13 Jan	Ryanair
01 Dec - 07 Dec	Aer Lingus
11 Dec - 28 Dec	Aer Lingus
01 Dec - 22 Dec	KLM
01 Dec - 14 Dec	Aer Lingus
01 Dec - 16 Dec	Aer Lingus
06 Dec - 27 Dec	Emirates

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

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 December from 790€

Return flights