| Sassari to Oerlinghausen | 776.63 mi (1,249.86 km) |
| Sassari to Oestrich-Winkel | 641.29 mi (1,032.06 km) |
| Sassari to Offenburg | 535.66 mi (862.07 km) |
| Sassari to Oftersheim | 597.24 mi (961.16 km) |
| Sassari to Ohrdruf | 705.67 mi (1,135.67 km) |
| Sassari to Ohringen | 587.24 mi (945.07 km) |
| Sassari to Olbernhau | 724.01 mi (1,165.18 km) |
| Sassari to Olching | 533.86 mi (859.17 km) |
| Sassari to Oldenburg | 858.10 mi (1,380.97 km) |
| Sassari to Oldenburg in Holstein | 943.94 mi (1,519.13 km) |
| Sassari to Olfen | 761.39 mi (1,225.33 km) |
| Sassari to Olpe | 711.82 mi (1,145.56 km) |
| Sassari to Olsberg | 734.01 mi (1,181.27 km) |
| Sassari to Oranienburg | 859.57 mi (1,383.35 km) |
| Sassari to Ortenberg | 665.74 mi (1,071.40 km) |
