| Monreale to Oberkirch | 767.63 mi (1,235.39 km) |
| Monreale to Obernburg am Main | 837.85 mi (1,348.39 km) |
| Monreale to Obernkirchen | 1,000.47 mi (1,610.10 km) |
| Monreale to Oberschleissheim | 707.85 mi (1,139.18 km) |
| Monreale to Oberstdorf | 662.21 mi (1,065.72 km) |
| Monreale to Obertraubling | 754.09 mi (1,213.60 km) |
| Monreale to Obertshausen | 856.71 mi (1,378.74 km) |
| Monreale to Oberursel | 869.04 mi (1,398.58 km) |
| Monreale to Ochsenfurt | 815.04 mi (1,311.69 km) |
| Monreale to Ochsenhausen | 710.38 mi (1,143.25 km) |
| Monreale to Ochtrup | 1,019.21 mi (1,640.27 km) |
| Monreale to Odenthal | 944.21 mi (1,519.57 km) |
| Monreale to Oelde | 982.17 mi (1,580.66 km) |
| Monreale to Oelsnitz | 854.05 mi (1,374.46 km) |
| Monreale to Oer-Erkenschwick | 981.65 mi (1,579.81 km) |
