| West Columbia to Oerlinghausen | 4,403.72 mi (7,087.11 km) |
| West Columbia to Oestrich-Winkel | 4,429.23 mi (7,128.16 km) |
| West Columbia to Offenburg | 4,468.15 mi (7,190.79 km) |
| West Columbia to Oftersheim | 4,470.38 mi (7,194.37 km) |
| West Columbia to Ohrdruf | 4,516.66 mi (7,268.86 km) |
| West Columbia to Ohringen | 4,512.87 mi (7,262.77 km) |
| West Columbia to Olbernhau | 4,624.30 mi (7,442.10 km) |
| West Columbia to Olching | 4,617.12 mi (7,430.53 km) |
| West Columbia to Oldenburg | 4,355.65 mi (7,009.74 km) |
| West Columbia to Oldenburg in Holstein | 4,426.51 mi (7,123.77 km) |
| West Columbia to Olfen | 4,359.42 mi (7,015.80 km) |
| West Columbia to Olpe | 4,395.51 mi (7,073.89 km) |
| West Columbia to Olsberg | 4,412.75 mi (7,101.64 km) |
| West Columbia to Oranienburg | 4,558.26 mi (7,335.80 km) |
| West Columbia to Ortenberg | 4,462.53 mi (7,181.75 km) |
