| Opa-locka to Oberkirch | 4,825.73 mi (7,766.27 km) |
| Opa-locka to Obernburg am Main | 4,845.33 mi (7,797.80 km) |
| Opa-locka to Obernkirchen | 4,796.64 mi (7,719.44 km) |
| Opa-locka to Oberschleissheim | 4,983.81 mi (8,020.66 km) |
| Opa-locka to Oberstdorf | 4,946.04 mi (7,959.88 km) |
| Opa-locka to Obertraubling | 4,993.39 mi (8,036.09 km) |
| Opa-locka to Obertshausen | 4,827.68 mi (7,769.41 km) |
| Opa-locka to Oberursel | 4,814.11 mi (7,747.56 km) |
| Opa-locka to Ochsenfurt | 4,888.67 mi (7,867.56 km) |
| Opa-locka to Ochsenhausen | 4,917.04 mi (7,913.21 km) |
| Opa-locka to Ochtrup | 4,719.12 mi (7,594.70 km) |
| Opa-locka to Odenthal | 4,736.92 mi (7,623.33 km) |
| Opa-locka to Oelde | 4,765.23 mi (7,668.90 km) |
| Opa-locka to Oelsnitz | 4,960.55 mi (7,983.24 km) |
| Opa-locka to Oer-Erkenschwick | 4,731.59 mi (7,614.76 km) |
