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

Return flights

01 Dec - 14 Dec	SWISS
02 Dec - 16 Dec	Pegasus Airlines
04 Dec - 08 Jan	Pegasus Airlines
10 Dec - 30 Jan	Ryanair
09 Dec - 06 Jan	Pegasus Airlines
01 Dec - 08 Dec	SWISS
11 Dec - 31 Jan	Pegasus Airlines
04 Dec - 18 Dec	SWISS
10 Dec - 07 Jan	Aer Lingus
03 Dec - 10 Dec	Ryanair
28 Dec - 06 Jan	HiSky Europe
10 Dec - 14 Jan	SWISS
10 Dec - 31 Dec	Aer Lingus
07 Dec - 28 Dec	Pegasus Airlines
15 Dec - 28 Dec	SWISS
07 Dec - 21 Dec	Aer Lingus
06 Dec - 27 Dec	Aer Lingus
26 Dec - 16 Jan	Aer Lingus
18 Dec - 15 Jan	Aer Lingus
29 Dec - 16 Jan	Turkish Airlines

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 730€

Return flights