| Altenberge to Navodari | 1,105.07 mi (1,778.44 km) |
| Altenberge to Negresti-Oas | 763.83 mi (1,229.26 km) |
| Altenberge to Nehoiu | 971.64 mi (1,563.70 km) |
| Altenberge to Ocna Mures | 834.14 mi (1,342.41 km) |
| Altenberge to Odobesti | 986.07 mi (1,586.93 km) |
| Altenberge to Odorheiu Secuiesc | 894.48 mi (1,439.53 km) |
| Altenberge to Oltenita | 1,037.30 mi (1,669.38 km) |
| Altenberge to Onesti | 955.78 mi (1,538.18 km) |
| Altenberge to Oradea | 731.58 mi (1,177.36 km) |
| Altenberge to Orastie | 829.91 mi (1,335.61 km) |
| Altenberge to Oravita | 808.47 mi (1,301.11 km) |
| Altenberge to Orsova | 848.92 mi (1,366.20 km) |
| Altenberge to Otelu Rosu | 811.71 mi (1,306.33 km) |
| Altenberge to Otopeni | 995.47 mi (1,602.05 km) |
| Altenberge to Ovidiu | 1,105.05 mi (1,778.40 km) |
