| Oerlinghausen to Oria | 899.18 mi (1,447.09 km) |
| Oerlinghausen to Oristano | 833.34 mi (1,341.12 km) |
| Oerlinghausen to Orta Nova | 806.35 mi (1,297.70 km) |
| Oerlinghausen to Orte | 679.39 mi (1,093.38 km) |
| Oerlinghausen to Ortona | 716.41 mi (1,152.96 km) |
| Oerlinghausen to Orvieto | 658.83 mi (1,060.28 km) |
| Oerlinghausen to Orzinuovi | 457.36 mi (736.05 km) |
| Oerlinghausen to Osimo | 627.09 mi (1,009.21 km) |
| Oerlinghausen to Ospitaletto | 447.57 mi (720.29 km) |
| Oerlinghausen to Ostuni | 883.49 mi (1,421.85 km) |
| Oerlinghausen to Ottaviano | 815.80 mi (1,312.90 km) |
| Oerlinghausen to Ovada | 506.28 mi (814.78 km) |
| Oerlinghausen to Ozieri | 786.57 mi (1,265.86 km) |
| Oerlinghausen to Paceco | 984.26 mi (1,584.01 km) |
| Oerlinghausen to Pachino | 1,099.51 mi (1,769.49 km) |
