| Sompting to Orbetello | 795.99 mi (1,281.02 km) |
| Sompting to Oria | 1,118.46 mi (1,799.98 km) |
| Sompting to Oristano | 869.00 mi (1,398.52 km) |
| Sompting to Orta Nova | 1,007.37 mi (1,621.21 km) |
| Sompting to Orte | 833.77 mi (1,341.83 km) |
| Sompting to Ortona | 909.83 mi (1,464.23 km) |
| Sompting to Orvieto | 811.13 mi (1,305.39 km) |
| Sompting to Orzinuovi | 603.49 mi (971.23 km) |
| Sompting to Osimo | 822.05 mi (1,322.95 km) |
| Sompting to Ospitaletto | 601.44 mi (967.93 km) |
| Sompting to Ostuni | 1,105.14 mi (1,778.55 km) |
| Sompting to Ottaviano | 988.60 mi (1,591.00 km) |
| Sompting to Ovada | 596.96 mi (960.72 km) |
| Sompting to Ozieri | 837.75 mi (1,348.23 km) |
| Sompting to Paceco | 1,088.69 mi (1,752.08 km) |
