| Sudbury to Oberkirch | 426.93 mi (687.07 km) |
| Sudbury to Obernburg am Main | 430.32 mi (692.53 km) |
| Sudbury to Obernkirchen | 404.98 mi (651.75 km) |
| Sudbury to Oberschleissheim | 575.27 mi (925.81 km) |
| Sudbury to Oberstdorf | 554.51 mi (892.39 km) |
| Sudbury to Obertraubling | 578.97 mi (931.76 km) |
| Sudbury to Obertshausen | 412.31 mi (663.55 km) |
| Sudbury to Oberursel | 398.65 mi (641.56 km) |
| Sudbury to Ochsenfurt | 473.64 mi (762.24 km) |
| Sudbury to Ochsenhausen | 516.51 mi (831.24 km) |
| Sudbury to Ochtrup | 323.33 mi (520.35 km) |
| Sudbury to Odenthal | 323.17 mi (520.09 km) |
| Sudbury to Oelde | 363.06 mi (584.29 km) |
| Sudbury to Oelsnitz | 548.07 mi (882.04 km) |
| Sudbury to Oer-Erkenschwick | 324.84 mi (522.78 km) |
