| Lake Monticello to Noventa Vicentina | 4,423.42 mi (7,118.81 km) |
| Lake Monticello to Novi di Modena | 4,409.21 mi (7,095.94 km) |
| Lake Monticello to Novi Ligure | 4,321.98 mi (6,955.55 km) |
| Lake Monticello to Nuoro | 4,493.04 mi (7,230.85 km) |
| Lake Monticello to Occhiobello | 4,437.49 mi (7,141.44 km) |
| Lake Monticello to Oderzo | 4,447.54 mi (7,157.63 km) |
| Lake Monticello to Oggiono | 4,313.89 mi (6,942.53 km) |
| Lake Monticello to Olbia | 4,480.22 mi (7,210.22 km) |
| Lake Monticello to Oleggio | 4,288.85 mi (6,902.24 km) |
| Lake Monticello to Olgiate Comasco | 4,297.45 mi (6,916.08 km) |
| Lake Monticello to Olgiate Olona | 4,298.58 mi (6,917.89 km) |
| Lake Monticello to Omegna | 4,270.45 mi (6,872.62 km) |
| Lake Monticello to Opera | 4,320.83 mi (6,953.70 km) |
| Lake Monticello to Oppeano | 4,407.93 mi (7,093.87 km) |
| Lake Monticello to Orbassano | 4,259.73 mi (6,855.37 km) |
