| Amstelveen to Orbetello | 742.81 mi (1,195.44 km) |
| Amstelveen to Oria | 1,014.52 mi (1,632.71 km) |
| Amstelveen to Oristano | 874.61 mi (1,407.54 km) |
| Amstelveen to Orta Nova | 913.34 mi (1,469.88 km) |
| Amstelveen to Orte | 764.87 mi (1,230.94 km) |
| Amstelveen to Ortona | 818.62 mi (1,317.44 km) |
| Amstelveen to Orvieto | 742.83 mi (1,195.46 km) |
| Amstelveen to Orzinuovi | 529.49 mi (852.13 km) |
| Amstelveen to Osimo | 727.62 mi (1,170.99 km) |
| Amstelveen to Ospitaletto | 522.54 mi (840.95 km) |
| Amstelveen to Ostuni | 999.51 mi (1,608.56 km) |
| Amstelveen to Ottaviano | 911.95 mi (1,467.65 km) |
| Amstelveen to Ovada | 556.95 mi (896.32 km) |
| Amstelveen to Ozieri | 832.88 mi (1,340.39 km) |
| Amstelveen to Paceco | 1,056.52 mi (1,700.31 km) |
