| Oberkirch to Navodari | 1,016.57 mi (1,636.01 km) |
| Oberkirch to Negresti-Oas | 706.77 mi (1,137.44 km) |
| Oberkirch to Nehoiu | 884.83 mi (1,424.00 km) |
| Oberkirch to Ocna Mures | 750.27 mi (1,207.44 km) |
| Oberkirch to Odobesti | 909.73 mi (1,464.07 km) |
| Oberkirch to Odorheiu Secuiesc | 817.54 mi (1,315.70 km) |
| Oberkirch to Oltenita | 934.45 mi (1,503.86 km) |
| Oberkirch to Onesti | 885.65 mi (1,425.32 km) |
| Oberkirch to Oradea | 649.16 mi (1,044.72 km) |
| Oberkirch to Orastie | 732.22 mi (1,178.39 km) |
| Oberkirch to Oravita | 686.11 mi (1,104.18 km) |
| Oberkirch to Orsova | 726.91 mi (1,169.85 km) |
| Oberkirch to Otelu Rosu | 702.39 mi (1,130.39 km) |
| Oberkirch to Otopeni | 895.54 mi (1,441.23 km) |
| Oberkirch to Ovidiu | 1,015.59 mi (1,634.44 km) |
