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

Return flights

19 Aug - 26 Aug	Air Canada
12 Aug - 19 Aug	Air Canada
13 Aug - 20 Aug	United
06 Aug - 20 Aug	United
26 Aug - 02 Sep	United
05 Aug - 12 Aug	Air Canada
27 Aug - 03 Sep	Air Canada
06 Aug - 13 Aug	Air Canada
20 Aug - 27 Aug	Air Canada
18 Aug - 27 Aug	Lufthansa
20 Aug - 25 Aug	Air Canada
15 Aug - 22 Aug	Air Canada
22 Aug - 02 Sep	Air Canada
24 Aug - 06 Sep	Air Canada
25 Aug - 01 Sep	Air Canada
31 Aug - 07 Sep	Air Canada
28 Aug - 04 Sep	Air Canada
29 Aug - 05 Sep	Air Canada
28 Aug - 01 Sep	Air Canada
30 Aug - 06 Sep	United

Also check the deals for one-way flights from Austin 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 Austin to Dublin in August from $456

Return flights