| Mandal to Orbetello | 1,089.30 mi (1,753.05 km) |
| Mandal to Oria | 1,291.70 mi (2,078.80 km) |
| Mandal to Oristano | 1,253.05 mi (2,016.59 km) |
| Mandal to Orta Nova | 1,209.09 mi (1,945.84 km) |
| Mandal to Orte | 1,096.68 mi (1,764.93 km) |
| Mandal to Ortona | 1,124.48 mi (1,809.67 km) |
| Mandal to Orvieto | 1,076.80 mi (1,732.94 km) |
| Mandal to Orzinuovi | 878.70 mi (1,414.14 km) |
| Mandal to Osimo | 1,037.84 mi (1,670.23 km) |
| Mandal to Ospitaletto | 868.77 mi (1,398.15 km) |
| Mandal to Ostuni | 1,275.52 mi (2,052.76 km) |
| Mandal to Ottaviano | 1,226.45 mi (1,973.78 km) |
| Mandal to Ovada | 926.38 mi (1,490.87 km) |
| Mandal to Ozieri | 1,207.05 mi (1,942.56 km) |
| Mandal to Paceco | 1,403.80 mi (2,259.20 km) |
