| Sredets to Obernburg am Main | 1,004.36 mi (1,616.36 km) |
| Sredets to Obernkirchen | 1,084.31 mi (1,745.03 km) |
| Sredets to Oberschleissheim | 859.97 mi (1,383.99 km) |
| Sredets to Oberstdorf | 896.79 mi (1,443.24 km) |
| Sredets to Obertraubling | 855.58 mi (1,376.93 km) |
| Sredets to Obertshausen | 1,023.28 mi (1,646.81 km) |
| Sredets to Oberursel | 1,037.51 mi (1,669.72 km) |
| Sredets to Ochsenfurt | 961.33 mi (1,547.12 km) |
| Sredets to Ochsenhausen | 925.44 mi (1,489.35 km) |
| Sredets to Ochtrup | 1,152.76 mi (1,855.18 km) |
| Sredets to Odenthal | 1,119.54 mi (1,801.72 km) |
| Sredets to Oelde | 1,104.62 mi (1,777.71 km) |
| Sredets to Oelsnitz | 904.91 mi (1,456.31 km) |
| Sredets to Oer-Erkenschwick | 1,132.51 mi (1,822.60 km) |
| Sredets to Oerlinghausen | 1,090.00 mi (1,754.18 km) |
