| Ostercappeln to Oria | 931.37 mi (1,498.90 km) |
| Ostercappeln to Oristano | 859.98 mi (1,384.00 km) |
| Ostercappeln to Orta Nova | 838.32 mi (1,349.14 km) |
| Ostercappeln to Orte | 710.06 mi (1,142.74 km) |
| Ostercappeln to Ortona | 748.14 mi (1,204.02 km) |
| Ostercappeln to Orvieto | 689.36 mi (1,109.42 km) |
| Ostercappeln to Orzinuovi | 486.34 mi (782.68 km) |
| Ostercappeln to Osimo | 658.67 mi (1,060.02 km) |
| Ostercappeln to Ospitaletto | 476.79 mi (767.32 km) |
| Ostercappeln to Ostuni | 915.70 mi (1,473.67 km) |
| Ostercappeln to Ottaviano | 847.28 mi (1,363.57 km) |
| Ostercappeln to Ovada | 533.10 mi (857.94 km) |
| Ostercappeln to Ozieri | 813.70 mi (1,309.53 km) |
| Ostercappeln to Paceco | 1,014.20 mi (1,632.20 km) |
| Ostercappeln to Pachino | 1,130.61 mi (1,819.53 km) |
