Cheapest return flights from Austin to Dublin in December from $430

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

Return flights

09 Dec - 14 Dec Lufthansa
10 Dec - 14 Dec Lufthansa
03 Dec - 07 Dec Lufthansa
09 Dec - 13 Dec Spirit Airlines
10 Dec - 13 Dec Frontier Airlines
17 Dec - 26 Dec Delta
27 Dec - 05 Jan Air Canada
20 Dec - 29 Dec Spirit Airlines
19 Dec - 04 Jan Spirit Airlines
23 Dec - 27 Dec Aer Lingus
19 Dec - 28 Dec American Airlines
26 Dec - 02 Jan Aer Lingus
28 Dec - 04 Jan Aer Lingus

Also check the deals for one-way flights from Austin to Dublin in December.

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