| Conneaut to Oberkirch | 4,089.17 mi (6,580.88 km) |
| Conneaut to Obernburg am Main | 4,085.49 mi (6,574.96 km) |
| Conneaut to Obernkirchen | 4,002.64 mi (6,441.63 km) |
| Conneaut to Oberschleissheim | 4,236.20 mi (6,817.51 km) |
| Conneaut to Oberstdorf | 4,216.18 mi (6,785.29 km) |
| Conneaut to Obertraubling | 4,233.19 mi (6,812.66 km) |
| Conneaut to Obertshausen | 4,065.83 mi (6,543.31 km) |
| Conneaut to Oberursel | 4,051.29 mi (6,519.93 km) |
| Conneaut to Ochsenfurt | 4,127.79 mi (6,643.04 km) |
| Conneaut to Ochsenhausen | 4,179.15 mi (6,725.69 km) |
| Conneaut to Ochtrup | 3,932.63 mi (6,328.96 km) |
| Conneaut to Odenthal | 3,967.59 mi (6,385.22 km) |
| Conneaut to Oelde | 3,980.73 mi (6,406.36 km) |
| Conneaut to Oelsnitz | 4,180.48 mi (6,727.83 km) |
| Conneaut to Oer-Erkenschwick | 3,952.98 mi (6,361.70 km) |
