| West Monroe to Oberkirch | 4,997.51 mi (8,042.72 km) |
| West Monroe to Obernburg am Main | 4,994.47 mi (8,037.83 km) |
| West Monroe to Obernkirchen | 4,911.27 mi (7,903.92 km) |
| West Monroe to Oberschleissheim | 5,145.04 mi (8,280.13 km) |
| West Monroe to Oberstdorf | 5,124.37 mi (8,246.88 km) |
| West Monroe to Obertraubling | 5,142.21 mi (8,275.59 km) |
| West Monroe to Obertshausen | 4,974.83 mi (8,006.21 km) |
| West Monroe to Oberursel | 4,960.30 mi (7,982.83 km) |
| West Monroe to Ochsenfurt | 5,036.80 mi (8,105.95 km) |
| West Monroe to Ochsenhausen | 5,087.64 mi (8,187.76 km) |
| West Monroe to Ochtrup | 4,841.52 mi (7,791.67 km) |
| West Monroe to Odenthal | 4,876.62 mi (7,848.17 km) |
| West Monroe to Oelde | 4,889.63 mi (7,869.10 km) |
| West Monroe to Oelsnitz | 5,089.37 mi (8,190.55 km) |
| West Monroe to Oer-Erkenschwick | 4,861.98 mi (7,824.60 km) |
