AirHint found the following cheapest one-way flights from Washington (IAD) to Geneva (GVA) in December 2025 (see full year).
One-Way flights
| 01 Dec | TAP | ||
| 02 Dec | TAP | ||
| 14 Dec | Frontier Airlines | ||
| 30 Dec | TAP | ||
| 03 Dec | TAP | ||
| 15 Dec | TAP | ||
| 27 Dec | Lufthansa | ||
| 30 Dec | United | direct | |
| 01 Dec | United | direct | |
| 03 Dec | United | direct |
Also check the deals for return flights from Washington to Geneva in December.
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