| Kaiserslautern to Oria | 782.47 mi (1,259.27 km) |
| Kaiserslautern to Oristano | 660.30 mi (1,062.65 km) |
| Kaiserslautern to Orta Nova | 679.48 mi (1,093.52 km) |
| Kaiserslautern to Orte | 530.85 mi (854.32 km) |
| Kaiserslautern to Ortona | 584.26 mi (940.27 km) |
| Kaiserslautern to Orvieto | 508.98 mi (819.12 km) |
| Kaiserslautern to Orzinuovi | 297.18 mi (478.27 km) |
| Kaiserslautern to Osimo | 493.25 mi (793.81 km) |
| Kaiserslautern to Ospitaletto | 289.42 mi (465.78 km) |
| Kaiserslautern to Ostuni | 767.74 mi (1,235.56 km) |
| Kaiserslautern to Ottaviano | 677.23 mi (1,089.90 km) |
| Kaiserslautern to Ovada | 334.58 mi (538.46 km) |
| Kaiserslautern to Ozieri | 615.09 mi (989.89 km) |
| Kaiserslautern to Paceco | 826.68 mi (1,330.41 km) |
| Kaiserslautern to Pachino | 952.95 mi (1,533.63 km) |
