| Altdorf to Noventa Vicentina | 176.87 mi (284.64 km) |
| Altdorf to Novi di Modena | 174.59 mi (280.97 km) |
| Altdorf to Novi Ligure | 145.80 mi (234.64 km) |
| Altdorf to Nuoro | 453.91 mi (730.50 km) |
| Altdorf to Occhiobello | 195.31 mi (314.32 km) |
| Altdorf to Oderzo | 198.82 mi (319.98 km) |
| Altdorf to Oggiono | 82.30 mi (132.44 km) |
| Altdorf to Olbia | 413.36 mi (665.23 km) |
| Altdorf to Oleggio | 87.52 mi (140.85 km) |
| Altdorf to Olgiate Comasco | 76.53 mi (123.16 km) |
| Altdorf to Olgiate Olona | 86.05 mi (138.49 km) |
| Altdorf to Omegna | 69.15 mi (111.29 km) |
| Altdorf to Opera | 106.23 mi (170.96 km) |
| Altdorf to Oppeano | 163.24 mi (262.71 km) |
| Altdorf to Orbassano | 138.85 mi (223.46 km) |
