| Sondrio to Oerlinghausen | 404.20 mi (650.51 km) |
| Sondrio to Oestrich-Winkel | 278.34 mi (447.95 km) |
| Sondrio to Offenburg | 182.79 mi (294.17 km) |
| Sondrio to Oftersheim | 229.06 mi (368.64 km) |
| Sondrio to Ohrdruf | 324.27 mi (521.87 km) |
| Sondrio to Ohringen | 210.08 mi (338.09 km) |
| Sondrio to Olbernhau | 348.85 mi (561.42 km) |
| Sondrio to Olching | 155.86 mi (250.83 km) |
| Sondrio to Oldenburg | 487.49 mi (784.55 km) |
| Sondrio to Oldenburg in Holstein | 563.52 mi (906.89 km) |
| Sondrio to Olfen | 399.47 mi (642.88 km) |
| Sondrio to Olpe | 347.55 mi (559.33 km) |
| Sondrio to Olsberg | 363.44 mi (584.89 km) |
| Sondrio to Oranienburg | 479.29 mi (771.34 km) |
| Sondrio to Ortenberg | 291.64 mi (469.36 km) |
