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

Return flights

07 Dec - 28 Jan	Aer Lingus
07 Dec - 27 Jan	Aer Lingus
11 Dec - 12 Jan	Aer Lingus
06 Dec - 29 Jan	Lufthansa
04 Dec - 24 Jan	Aer Lingus
01 Dec - 06 Dec	Turkish Airlines
07 Dec - 28 Dec	SWISS
14 Dec - 31 Jan	Aer Lingus
02 Dec - 05 Dec	Ryanair
28 Dec - 30 Jan	Lufthansa
21 Dec - 26 Jan	Aer Lingus
06 Dec - 27 Dec	Aer Lingus
28 Dec - 31 Jan	Lufthansa
01 Dec - 13 Dec	Etihad Airways
01 Dec - 16 Dec	Qatar Airways
27 Dec - 17 Jan	Aer Lingus
01 Dec - 31 Dec	SWISS
12 Dec - 31 Dec	Etihad Airways
18 Dec - 25 Dec	Aer Lingus
16 Dec - 30 Dec	Etihad Airways

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 789€

Return flights