| Orsta to Noventa Vicentina | 1,188.51 mi (1,912.72 km) |
| Orsta to Novi di Modena | 1,210.92 mi (1,948.78 km) |
| Orsta to Novi Ligure | 1,209.74 mi (1,946.89 km) |
| Orsta to Nuoro | 1,517.89 mi (2,442.81 km) |
| Orsta to Occhiobello | 1,213.57 mi (1,953.06 km) |
| Orsta to Oderzo | 1,162.19 mi (1,870.36 km) |
| Orsta to Oggiono | 1,141.47 mi (1,837.01 km) |
| Orsta to Olbia | 1,477.18 mi (2,377.29 km) |
| Orsta to Oleggio | 1,151.27 mi (1,852.79 km) |
| Orsta to Olgiate Comasco | 1,139.87 mi (1,834.44 km) |
| Orsta to Olgiate Olona | 1,149.88 mi (1,850.55 km) |
| Orsta to Omegna | 1,131.35 mi (1,820.74 km) |
| Orsta to Opera | 1,168.42 mi (1,880.39 km) |
| Orsta to Oppeano | 1,184.92 mi (1,906.95 km) |
| Orsta to Orbassano | 1,189.25 mi (1,913.91 km) |
