| Redding to Oberkirch | 5,578.17 mi (8,977.19 km) |
| Redding to Obernburg am Main | 5,532.51 mi (8,903.72 km) |
| Redding to Obernkirchen | 5,395.29 mi (8,682.88 km) |
| Redding to Oberschleissheim | 5,685.19 mi (9,149.43 km) |
| Redding to Oberstdorf | 5,700.06 mi (9,173.37 km) |
| Redding to Obertraubling | 5,658.94 mi (9,107.18 km) |
| Redding to Obertshausen | 5,511.81 mi (8,870.41 km) |
| Redding to Oberursel | 5,497.53 mi (8,847.42 km) |
| Redding to Ochsenfurt | 5,566.94 mi (8,959.13 km) |
| Redding to Ochsenhausen | 5,653.61 mi (9,098.61 km) |
| Redding to Ochtrup | 5,350.49 mi (8,610.78 km) |
| Redding to Odenthal | 5,413.44 mi (8,712.09 km) |
| Redding to Oelde | 5,395.45 mi (8,683.13 km) |
| Redding to Oelsnitz | 5,575.07 mi (8,972.21 km) |
| Redding to Oer-Erkenschwick | 5,383.20 mi (8,663.42 km) |
