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

Return flights

11 Aug - 28 Aug	China Eastern
07 Aug - 04 Sep	Air China
05 Aug - 24 Aug	Air China
07 Aug - 31 Aug	Air China
05 Aug - 12 Aug	Air China
06 Aug - 20 Aug	Scoot Tigerair
06 Aug - 30 Aug	Air China
06 Aug - 18 Aug	Air China
03 Aug - 31 Aug	Air China
06 Aug - 31 Aug	Scoot Tigerair
06 Aug - 19 Aug	Scoot Tigerair
04 Aug - 08 Sep	China Eastern
25 Aug - 10 Sep	China Eastern
21 Aug - 10 Sep	China Eastern
21 Aug - 13 Sep	China Eastern
21 Aug - 11 Sep	China Eastern
25 Aug - 13 Sep	China Eastern
20 Aug - 03 Sep	Scoot Tigerair
01 Aug - 04 Sep	Air China
01 Aug - 01 Sep	China Eastern

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

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 August from 880€

Return flights