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

Return flights

03 Dec - 12 Dec	Turkish Airlines
03 Dec - 17 Dec	Turkish Airlines
09 Dec - 16 Dec	Scoot Tigerair
04 Dec - 27 Dec	Garuda Indonesia
02 Dec - 16 Dec	Turkish Airlines
02 Dec - 04 Jan	Turkish Airlines
02 Dec - 05 Jan	Turkish Airlines
02 Dec - 13 Jan	Turkish Airlines
02 Dec - 06 Jan	Turkish Airlines
30 Dec - 31 Jan	Turkish Airlines
05 Dec - 04 Jan	Cebu Pacific
04 Dec - 30 Dec	Turkish Airlines
01 Dec - 13 Jan	Etihad Airways
04 Dec - 05 Jan	Turkish Airlines
23 Dec - 31 Jan	Turkish Airlines
27 Dec - 31 Jan	Turkish Airlines
05 Dec - 27 Dec	Scoot Tigerair
05 Dec - 29 Dec	Turkish Airlines
01 Dec - 31 Dec	Emirates
12 Dec - 30 Dec	Turkish Airlines

Also check the deals for one-way flights from Sydney to Dublin 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 Sydney to Dublin in December from 1105€

Return flights