AirHint found the following cheapest return flights from Austin (AUS) to Warsaw (WAW) in December 2025 (see full year).
Return flights
| 15 Dec - 10 Jan | Spirit Airlines | ||
| 05 Dec - 27 Dec | Frontier Airlines | ||
| 25 Dec - 29 Dec | Aer Lingus | ||
| 23 Dec - 05 Jan | Lufthansa | ||
| 31 Dec - 04 Jan | Spirit Airlines | ||
| 21 Dec - 06 Jan | Finnair |
Also check the deals for one-way flights from Austin to Warsaw in December.
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