| Provadia to Obernburg am Main | 980.30 mi (1,577.64 km) |
| Provadia to Obernkirchen | 1,052.67 mi (1,694.11 km) |
| Provadia to Oberschleissheim | 839.60 mi (1,351.20 km) |
| Provadia to Oberstdorf | 881.18 mi (1,418.13 km) |
| Provadia to Obertraubling | 831.57 mi (1,338.28 km) |
| Provadia to Obertshausen | 998.73 mi (1,607.29 km) |
| Provadia to Oberursel | 1,012.74 mi (1,629.84 km) |
| Provadia to Ochsenfurt | 937.05 mi (1,508.03 km) |
| Provadia to Ochsenhausen | 907.33 mi (1,460.21 km) |
| Provadia to Ochtrup | 1,123.09 mi (1,807.44 km) |
| Provadia to Odenthal | 1,093.36 mi (1,759.60 km) |
| Provadia to Oelde | 1,075.15 mi (1,730.29 km) |
| Provadia to Oelsnitz | 875.49 mi (1,408.96 km) |
| Provadia to Oer-Erkenschwick | 1,104.40 mi (1,777.37 km) |
| Provadia to Oerlinghausen | 1,059.65 mi (1,705.35 km) |
