| Montagnana to Oberkirch | 278.33 mi (447.93 km) |
| Montagnana to Obernburg am Main | 336.21 mi (541.07 km) |
| Montagnana to Obernkirchen | 497.50 mi (800.65 km) |
| Montagnana to Oberschleissheim | 208.49 mi (335.53 km) |
| Montagnana to Oberstdorf | 160.68 mi (258.58 km) |
| Montagnana to Obertraubling | 259.99 mi (418.41 km) |
| Montagnana to Obertshausen | 355.66 mi (572.39 km) |
| Montagnana to Oberursel | 368.64 mi (593.27 km) |
| Montagnana to Ochsenfurt | 312.07 mi (502.23 km) |
| Montagnana to Ochsenhausen | 208.93 mi (336.24 km) |
| Montagnana to Ochtrup | 519.44 mi (835.96 km) |
| Montagnana to Odenthal | 447.93 mi (720.87 km) |
| Montagnana to Oelde | 480.46 mi (773.22 km) |
| Montagnana to Oelsnitz | 359.61 mi (578.73 km) |
| Montagnana to Oer-Erkenschwick | 482.92 mi (777.19 km) |
