| Ospitaletto to Oberkirch | 226.07 mi (363.82 km) |
| Ospitaletto to Obernburg am Main | 299.19 mi (481.50 km) |
| Ospitaletto to Obernkirchen | 465.71 mi (749.48 km) |
| Ospitaletto to Oberschleissheim | 199.08 mi (320.38 km) |
| Ospitaletto to Oberstdorf | 128.50 mi (206.80 km) |
| Ospitaletto to Obertraubling | 255.25 mi (410.78 km) |
| Ospitaletto to Obertshausen | 316.96 mi (510.10 km) |
| Ospitaletto to Oberursel | 328.53 mi (528.71 km) |
| Ospitaletto to Ochsenfurt | 282.92 mi (455.31 km) |
| Ospitaletto to Ochsenhausen | 174.00 mi (280.03 km) |
| Ospitaletto to Ochtrup | 477.70 mi (768.78 km) |
| Ospitaletto to Odenthal | 402.07 mi (647.07 km) |
| Ospitaletto to Oelde | 442.50 mi (712.14 km) |
| Ospitaletto to Oelsnitz | 349.52 mi (562.51 km) |
| Ospitaletto to Oer-Erkenschwick | 439.81 mi (707.80 km) |
