| Ascot to Orbetello | 833.68 mi (1,341.67 km) |
| Ascot to Oria | 1,152.34 mi (1,854.52 km) |
| Ascot to Oristano | 910.33 mi (1,465.03 km) |
| Ascot to Orta Nova | 1,042.04 mi (1,677.00 km) |
| Ascot to Orte | 870.29 mi (1,400.60 km) |
| Ascot to Ortona | 944.51 mi (1,520.04 km) |
| Ascot to Orvieto | 847.62 mi (1,364.12 km) |
| Ascot to Orzinuovi | 638.36 mi (1,027.34 km) |
| Ascot to Osimo | 856.07 mi (1,377.71 km) |
| Ascot to Ospitaletto | 635.81 mi (1,023.24 km) |
| Ascot to Ostuni | 1,138.81 mi (1,832.74 km) |
| Ascot to Ottaviano | 1,024.89 mi (1,649.41 km) |
| Ascot to Ovada | 634.73 mi (1,021.50 km) |
| Ascot to Ozieri | 878.57 mi (1,413.93 km) |
| Ascot to Paceco | 1,128.50 mi (1,816.14 km) |
