| Monnickendam to Orbetello | 749.88 mi (1,206.82 km) |
| Monnickendam to Oria | 1,018.11 mi (1,638.48 km) |
| Monnickendam to Oristano | 884.12 mi (1,422.86 km) |
| Monnickendam to Orta Nova | 917.71 mi (1,476.92 km) |
| Monnickendam to Orte | 771.04 mi (1,240.87 km) |
| Monnickendam to Ortona | 823.36 mi (1,325.07 km) |
| Monnickendam to Orvieto | 749.09 mi (1,205.54 km) |
| Monnickendam to Orzinuovi | 536.23 mi (862.97 km) |
| Monnickendam to Osimo | 732.39 mi (1,178.68 km) |
| Monnickendam to Ospitaletto | 529.03 mi (851.39 km) |
| Monnickendam to Ostuni | 1,003.01 mi (1,614.19 km) |
| Monnickendam to Ottaviano | 917.36 mi (1,476.35 km) |
| Monnickendam to Ovada | 565.32 mi (909.80 km) |
| Monnickendam to Ozieri | 842.03 mi (1,355.12 km) |
| Monnickendam to Paceco | 1,064.06 mi (1,712.44 km) |
