| Dumont to Oberkirch | 3,865.24 mi (6,220.50 km) |
| Dumont to Obernburg am Main | 3,869.78 mi (6,227.80 km) |
| Dumont to Obernkirchen | 3,799.36 mi (6,114.48 km) |
| Dumont to Oberschleissheim | 4,016.99 mi (6,464.73 km) |
| Dumont to Oberstdorf | 3,990.72 mi (6,422.45 km) |
| Dumont to Obertraubling | 4,018.47 mi (6,467.10 km) |
| Dumont to Obertshausen | 3,850.73 mi (6,197.15 km) |
| Dumont to Oberursel | 3,836.46 mi (6,174.19 km) |
| Dumont to Ochsenfurt | 3,912.71 mi (6,296.90 km) |
| Dumont to Ochsenhausen | 3,956.22 mi (6,366.92 km) |
| Dumont to Ochtrup | 3,726.01 mi (5,996.44 km) |
| Dumont to Odenthal | 3,754.66 mi (6,042.55 km) |
| Dumont to Oelde | 3,773.62 mi (6,073.06 km) |
| Dumont to Oelsnitz | 3,972.82 mi (6,393.64 km) |
| Dumont to Oer-Erkenschwick | 3,743.45 mi (6,024.51 km) |
