AirHint found the following cheapest return flights from Grenoble (GNB) to Vienna (VIE) in December 2025 (see full year).
Return flights
| 31 Dec - 07 Jan | Ryanair | ||
| 31 Dec - 04 Jan | Ryanair | ||
| 27 Dec - 28 Dec | Jet2 | ||
| 27 Dec - 02 Jan | British Airways | ||
| 28 Dec - 31 Dec | British Airways |
Also check the deals for one-way flights from Grenoble to Vienna in December.
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