| Alloa to Orbetello | 1,156.70 mi (1,861.53 km) |
| Alloa to Oria | 1,448.66 mi (2,331.39 km) |
| Alloa to Oristano | 1,253.43 mi (2,017.21 km) |
| Alloa to Orta Nova | 1,344.66 mi (2,164.01 km) |
| Alloa to Orte | 1,186.21 mi (1,909.01 km) |
| Alloa to Ortona | 1,248.51 mi (2,009.29 km) |
| Alloa to Orvieto | 1,163.66 mi (1,872.74 km) |
| Alloa to Orzinuovi | 949.39 mi (1,527.89 km) |
| Alloa to Osimo | 1,157.72 mi (1,863.17 km) |
| Alloa to Ospitaletto | 944.31 mi (1,519.72 km) |
| Alloa to Ostuni | 1,433.93 mi (2,307.69 km) |
| Alloa to Ottaviano | 1,337.65 mi (2,152.74 km) |
| Alloa to Ovada | 960.79 mi (1,546.24 km) |
| Alloa to Ozieri | 1,218.93 mi (1,961.68 km) |
| Alloa to Paceco | 1,461.94 mi (2,352.76 km) |
