| Kaiserslautern to Navodari | 1,041.99 mi (1,676.92 km) |
| Kaiserslautern to Negresti-Oas | 721.41 mi (1,161.00 km) |
| Kaiserslautern to Nehoiu | 909.09 mi (1,463.03 km) |
| Kaiserslautern to Ocna Mures | 772.74 mi (1,243.60 km) |
| Kaiserslautern to Odobesti | 931.29 mi (1,498.76 km) |
| Kaiserslautern to Odorheiu Secuiesc | 838.63 mi (1,349.65 km) |
| Kaiserslautern to Oltenita | 963.36 mi (1,550.37 km) |
| Kaiserslautern to Onesti | 905.37 mi (1,457.05 km) |
| Kaiserslautern to Oradea | 670.22 mi (1,078.61 km) |
| Kaiserslautern to Orastie | 758.37 mi (1,220.48 km) |
| Kaiserslautern to Oravita | 718.78 mi (1,156.77 km) |
| Kaiserslautern to Orsova | 759.81 mi (1,222.80 km) |
| Kaiserslautern to Otelu Rosu | 731.54 mi (1,177.30 km) |
| Kaiserslautern to Otopeni | 923.44 mi (1,486.13 km) |
| Kaiserslautern to Ovidiu | 1,041.27 mi (1,675.76 km) |
