| Silistra to Obernburg am Main | 938.06 mi (1,509.66 km) |
| Silistra to Obernkirchen | 1,003.26 mi (1,614.58 km) |
| Silistra to Oberschleissheim | 801.42 mi (1,289.76 km) |
| Silistra to Oberstdorf | 847.61 mi (1,364.09 km) |
| Silistra to Obertraubling | 789.86 mi (1,271.15 km) |
| Silistra to Obertshausen | 955.96 mi (1,538.47 km) |
| Silistra to Oberursel | 969.72 mi (1,560.62 km) |
| Silistra to Ochsenfurt | 894.72 mi (1,439.91 km) |
| Silistra to Ochsenhausen | 871.14 mi (1,401.96 km) |
| Silistra to Ochtrup | 1,075.32 mi (1,730.57 km) |
| Silistra to Odenthal | 1,048.85 mi (1,687.96 km) |
| Silistra to Oelde | 1,027.64 mi (1,653.83 km) |
| Silistra to Oelsnitz | 828.51 mi (1,333.35 km) |
| Silistra to Oer-Erkenschwick | 1,058.08 mi (1,702.82 km) |
| Silistra to Oerlinghausen | 1,011.38 mi (1,627.67 km) |
