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

Return flights

03 Dec - 14 Dec	Virgin Australia
01 Dec - 30 Dec	Emirates
01 Dec - 18 Jan	Emirates
02 Dec - 18 Jan	Emirates
01 Dec - 12 Dec	Etihad Airways
01 Dec - 06 Jan	Etihad Airways
03 Dec - 15 Dec	Turkish Airlines
02 Dec - 12 Dec	Emirates
02 Dec - 13 Jan	Qatar Airways
01 Dec - 13 Jan	Qatar Airways
05 Dec - 15 Jan	Turkish Airlines
07 Dec - 20 Dec	Turkish Airlines
07 Dec - 21 Dec	Turkish Airlines
07 Dec - 03 Jan	Turkish Airlines
06 Dec - 06 Jan	Turkish Airlines
15 Dec - 15 Jan	Batik Air Malaysia
02 Dec - 06 Jan	Turkish Airlines
12 Dec - 24 Dec	Turkish Airlines
12 Dec - 29 Dec	Turkish Airlines
12 Dec - 28 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 $1403

Return flights