| Alpu to Orbetello | 1,041.59 mi (1,676.28 km) |
| Alpu to Oria | 704.60 mi (1,133.95 km) |
| Alpu to Oristano | 1,183.15 mi (1,904.10 km) |
| Alpu to Orta Nova | 806.23 mi (1,297.51 km) |
| Alpu to Orte | 982.02 mi (1,580.41 km) |
| Alpu to Ortona | 879.02 mi (1,414.64 km) |
| Alpu to Orvieto | 997.56 mi (1,605.42 km) |
| Alpu to Orzinuovi | 1,133.79 mi (1,824.67 km) |
| Alpu to Osimo | 935.95 mi (1,506.27 km) |
| Alpu to Ospitaletto | 1,129.59 mi (1,817.91 km) |
| Alpu to Ostuni | 707.35 mi (1,138.37 km) |
| Alpu to Ottaviano | 869.84 mi (1,399.88 km) |
| Alpu to Ovada | 1,185.87 mi (1,908.47 km) |
| Alpu to Ozieri | 1,156.99 mi (1,862.00 km) |
| Alpu to Paceco | 995.59 mi (1,602.25 km) |
