| Sassari to Oberkirch | 539.89 mi (868.87 km) |
| Sassari to Obernburg am Main | 630.30 mi (1,014.37 km) |
| Sassari to Obernkirchen | 797.75 mi (1,283.86 km) |
| Sassari to Oberschleissheim | 540.42 mi (869.72 km) |
| Sassari to Oberstdorf | 469.55 mi (755.66 km) |
| Sassari to Obertraubling | 595.89 mi (958.98 km) |
| Sassari to Obertshausen | 645.47 mi (1,038.78 km) |
| Sassari to Oberursel | 654.77 mi (1,053.75 km) |
| Sassari to Ochsenfurt | 620.86 mi (999.18 km) |
| Sassari to Ochsenhausen | 512.11 mi (824.16 km) |
| Sassari to Ochtrup | 795.75 mi (1,280.63 km) |
| Sassari to Odenthal | 715.45 mi (1,151.41 km) |
| Sassari to Oelde | 767.64 mi (1,235.39 km) |
| Sassari to Oelsnitz | 691.66 mi (1,113.11 km) |
| Sassari to Oer-Erkenschwick | 756.75 mi (1,217.87 km) |
