| Huntingdon to Orbetello | 864.57 mi (1,391.39 km) |
| Huntingdon to Oria | 1,172.17 mi (1,886.43 km) |
| Huntingdon to Oristano | 954.29 mi (1,535.79 km) |
| Huntingdon to Orta Nova | 1,064.09 mi (1,712.49 km) |
| Huntingdon to Orte | 897.74 mi (1,444.77 km) |
| Huntingdon to Ortona | 966.85 mi (1,556.00 km) |
| Huntingdon to Orvieto | 875.07 mi (1,408.28 km) |
| Huntingdon to Orzinuovi | 662.59 mi (1,066.34 km) |
| Huntingdon to Osimo | 877.12 mi (1,411.58 km) |
| Huntingdon to Ospitaletto | 658.84 mi (1,060.31 km) |
| Huntingdon to Ostuni | 1,158.14 mi (1,863.85 km) |
| Huntingdon to Ottaviano | 1,051.26 mi (1,691.85 km) |
| Huntingdon to Ovada | 666.74 mi (1,073.01 km) |
| Huntingdon to Ozieri | 920.24 mi (1,480.99 km) |
| Huntingdon to Paceco | 1,165.63 mi (1,875.90 km) |
