AirHint found the following cheapest return flights from Sydney (SYD) to Dublin (DUB) in January 2026 (see full year).

Return flights

26 Jan - 02 Feb	China Eastern
23 Jan - 26 Jan	China Southern
24 Jan - 31 Jan	Air China
31 Jan - 07 Feb	Air China
25 Jan - 31 Jan	Air China
27 Jan - 03 Feb	Air China
20 Jan - 02 Feb	China Eastern
29 Jan - 05 Feb	China Eastern
23 Jan - 02 Feb	Air China
29 Jan - 03 Feb	China Eastern
28 Jan - 04 Feb	China Southern
24 Jan - 07 Feb	Air China
20 Jan - 20 Feb	China Eastern
22 Jan - 29 Jan	Air China
19 Jan - 29 Jan	China Southern
20 Jan - 31 Jan	China Eastern
23 Jan - 30 Jan	China Eastern
22 Jan - 30 Jan	Air China
20 Jan - 30 Jan	China Eastern
17 Jan - 29 Jan	China Southern

Also check the deals for one-way flights from Sydney to Dublin in January.

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 January from $764

Return flights