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

Return flights

21 Jan - 02 Feb	China Eastern
30 Jan - 02 Feb	Air China
26 Jan - 02 Feb	Air China
22 Jan - 02 Feb	Air China
29 Jan - 02 Feb	Hainan Airlines
21 Jan - 01 Feb	Air China
24 Jan - 01 Feb	Air China
25 Jan - 01 Feb	Air China
22 Jan - 01 Feb	Air China
23 Jan - 02 Feb	Air China
23 Jan - 31 Jan	China Southern
19 Jan - 29 Jan	Air China
21 Jan - 28 Jan	China Southern
24 Jan - 27 Jan	Air China
25 Jan - 27 Jan	Air China
25 Jan - 31 Jan	Air China
21 Jan - 31 Jan	Air China
22 Jan - 29 Jan	Air China
27 Jan - 31 Jan	Air China
22 Jan - 26 Jan	Air China

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 640€

Return flights