| Blackfoot to Oberkirch | 5,142.67 mi (8,276.34 km) |
| Blackfoot to Obernburg am Main | 5,105.11 mi (8,215.87 km) |
| Blackfoot to Obernkirchen | 4,977.09 mi (8,009.85 km) |
| Blackfoot to Oberschleissheim | 5,259.71 mi (8,464.68 km) |
| Blackfoot to Oberstdorf | 5,267.42 mi (8,477.09 km) |
| Blackfoot to Obertraubling | 5,238.00 mi (8,429.74 km) |
| Blackfoot to Obertshausen | 5,084.30 mi (8,182.39 km) |
| Blackfoot to Oberursel | 5,069.74 mi (8,158.96 km) |
| Blackfoot to Ochsenfurt | 5,141.72 mi (8,274.81 km) |
| Blackfoot to Ochsenhausen | 5,222.27 mi (8,404.43 km) |
| Blackfoot to Ochtrup | 4,926.27 mi (7,928.06 km) |
| Blackfoot to Odenthal | 4,984.42 mi (8,021.64 km) |
| Blackfoot to Oelde | 4,972.62 mi (8,002.66 km) |
| Blackfoot to Oelsnitz | 5,159.44 mi (8,303.31 km) |
| Blackfoot to Oer-Erkenschwick | 4,956.94 mi (7,977.42 km) |
