| Orestiada to Oberkirch | 1,020.10 mi (1,641.68 km) |
| Orestiada to Obernburg am Main | 1,014.51 mi (1,632.69 km) |
| Orestiada to Obernkirchen | 1,103.71 mi (1,776.25 km) |
| Orestiada to Oberschleissheim | 866.33 mi (1,394.22 km) |
| Orestiada to Oberstdorf | 897.22 mi (1,443.94 km) |
| Orestiada to Obertraubling | 866.39 mi (1,394.33 km) |
| Orestiada to Obertshausen | 1,033.96 mi (1,664.00 km) |
| Orestiada to Oberursel | 1,048.42 mi (1,687.28 km) |
| Orestiada to Ochsenfurt | 971.94 mi (1,564.19 km) |
| Orestiada to Ochsenhausen | 928.71 mi (1,494.62 km) |
| Orestiada to Ochtrup | 1,169.41 mi (1,881.98 km) |
| Orestiada to Odenthal | 1,131.89 mi (1,821.60 km) |
| Orestiada to Oelde | 1,121.17 mi (1,804.35 km) |
| Orestiada to Oelsnitz | 922.17 mi (1,484.10 km) |
| Orestiada to Oer-Erkenschwick | 1,147.26 mi (1,846.33 km) |
