| Highland City to Oberkirch | 4,795.40 mi (7,717.45 km) |
| Highland City to Obernburg am Main | 4,810.36 mi (7,741.53 km) |
| Highland City to Obernkirchen | 4,754.38 mi (7,651.43 km) |
| Highland City to Oberschleissheim | 4,951.91 mi (7,969.33 km) |
| Highland City to Oberstdorf | 4,917.57 mi (7,914.07 km) |
| Highland City to Obertraubling | 4,958.96 mi (7,980.67 km) |
| Highland City to Obertshausen | 4,792.23 mi (7,712.35 km) |
| Highland City to Oberursel | 4,778.40 mi (7,690.10 km) |
| Highland City to Ochsenfurt | 4,853.67 mi (7,811.23 km) |
| Highland City to Ochsenhausen | 4,886.83 mi (7,864.60 km) |
| Highland City to Ochtrup | 4,678.13 mi (7,528.72 km) |
| Highland City to Odenthal | 4,699.55 mi (7,563.20 km) |
| Highland City to Oelde | 4,724.84 mi (7,603.89 km) |
| Highland City to Oelsnitz | 4,921.86 mi (7,920.97 km) |
| Highland City to Oer-Erkenschwick | 4,692.28 mi (7,551.50 km) |
