AirHint found the following cheapest return flights from Cardiff (CWL) to Vienna (VIE) in December 2025 (see full year).
Return flights
| 01 Dec - 05 Dec | Ryanair | ||
| 01 Dec - 02 Dec | Ryanair | ||
| 11 Dec - 14 Dec | Ryanair | ||
| 05 Dec - 07 Dec | Ryanair | ||
| 21 Dec - 26 Dec | Ryanair | ||
| 10 Dec - 12 Dec | Ryanair | ||
| 26 Dec - 02 Jan | KLM | ||
| 10 Dec - 11 Dec | KLM |
Also check the deals for one-way flights from Cardiff to Vienna in December.
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