| West Falls Church to Oberkirch | 4,087.27 mi (6,577.82 km) |
| West Falls Church to Obernburg am Main | 4,091.89 mi (6,585.26 km) |
| West Falls Church to Obernkirchen | 4,021.21 mi (6,471.52 km) |
| West Falls Church to Oberschleissheim | 4,239.09 mi (6,822.16 km) |
| West Falls Church to Oberstdorf | 4,212.70 mi (6,779.69 km) |
| West Falls Church to Obertraubling | 4,240.58 mi (6,824.55 km) |
| West Falls Church to Obertshausen | 4,072.84 mi (6,554.61 km) |
| West Falls Church to Oberursel | 4,058.57 mi (6,531.64 km) |
| West Falls Church to Ochsenfurt | 4,134.82 mi (6,654.35 km) |
| West Falls Church to Ochsenhausen | 4,178.26 mi (6,724.26 km) |
| West Falls Church to Ochtrup | 3,947.97 mi (6,353.64 km) |
| West Falls Church to Odenthal | 3,976.75 mi (6,399.97 km) |
| West Falls Church to Oelde | 3,995.60 mi (6,430.29 km) |
| West Falls Church to Oelsnitz | 4,194.83 mi (6,750.93 km) |
| West Falls Church to Oer-Erkenschwick | 3,965.49 mi (6,381.84 km) |
