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

Return flights

04 Aug - 20 Aug	Air Canada
27 Aug - 03 Sep	United
15 Aug - 22 Aug	United
21 Aug - 28 Aug	United
11 Aug - 18 Aug	United
25 Aug - 01 Sep	United
29 Aug - 05 Sep	United
23 Aug - 30 Aug	United
19 Aug - 26 Aug	United
30 Aug - 06 Sep	Air Canada
19 Aug - 22 Aug	Spirit Airlines
17 Aug - 24 Aug	Aer Lingus

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 399€

Return flights