| Horizon West to Noventa Vicentina | 4,993.68 mi (8,036.56 km) |
| Horizon West to Novi di Modena | 4,975.61 mi (8,007.48 km) |
| Horizon West to Novi Ligure | 4,882.90 mi (7,858.27 km) |
| Horizon West to Nuoro | 5,024.40 mi (8,085.99 km) |
| Horizon West to Occhiobello | 5,005.56 mi (8,055.66 km) |
| Horizon West to Oderzo | 5,022.96 mi (8,083.68 km) |
| Horizon West to Oggiono | 4,882.78 mi (7,858.07 km) |
| Horizon West to Olbia | 5,016.30 mi (8,072.96 km) |
| Horizon West to Oleggio | 4,855.07 mi (7,813.48 km) |
| Horizon West to Olgiate Comasco | 4,865.56 mi (7,830.36 km) |
| Horizon West to Olgiate Olona | 4,865.53 mi (7,830.31 km) |
| Horizon West to Omegna | 4,838.04 mi (7,786.08 km) |
| Horizon West to Opera | 4,886.82 mi (7,864.58 km) |
| Horizon West to Oppeano | 4,977.55 mi (8,010.59 km) |
| Horizon West to Orbassano | 4,819.67 mi (7,756.51 km) |
