| Saint Albans to Orbetello | 840.17 mi (1,352.13 km) |
| Saint Albans to Oria | 1,154.06 mi (1,857.28 km) |
| Saint Albans to Oristano | 923.07 mi (1,485.53 km) |
| Saint Albans to Orta Nova | 1,044.68 mi (1,681.25 km) |
| Saint Albans to Orte | 875.24 mi (1,408.57 km) |
| Saint Albans to Ortona | 947.23 mi (1,524.41 km) |
| Saint Albans to Orvieto | 852.56 mi (1,372.06 km) |
| Saint Albans to Orzinuovi | 641.67 mi (1,032.67 km) |
| Saint Albans to Osimo | 858.17 mi (1,381.08 km) |
| Saint Albans to Ospitaletto | 638.58 mi (1,027.70 km) |
| Saint Albans to Ostuni | 1,140.31 mi (1,835.14 km) |
| Saint Albans to Ottaviano | 1,029.44 mi (1,656.73 km) |
| Saint Albans to Ovada | 641.58 mi (1,032.52 km) |
| Saint Albans to Ozieri | 890.17 mi (1,432.60 km) |
| Saint Albans to Paceco | 1,138.02 mi (1,831.47 km) |
