| Castle Bromwich to Orbetello | 920.32 mi (1,481.12 km) |
| Castle Bromwich to Oria | 1,234.13 mi (1,986.14 km) |
| Castle Bromwich to Oristano | 999.72 mi (1,608.89 km) |
| Castle Bromwich to Orta Nova | 1,124.95 mi (1,810.44 km) |
| Castle Bromwich to Orte | 955.62 mi (1,537.93 km) |
| Castle Bromwich to Ortona | 1,027.52 mi (1,653.63 km) |
| Castle Bromwich to Orvieto | 932.94 mi (1,501.42 km) |
| Castle Bromwich to Orzinuovi | 722.05 mi (1,162.03 km) |
| Castle Bromwich to Osimo | 938.36 mi (1,510.14 km) |
| Castle Bromwich to Ospitaletto | 718.91 mi (1,156.98 km) |
| Castle Bromwich to Ostuni | 1,220.32 mi (1,963.91 km) |
| Castle Bromwich to Ottaviano | 1,109.85 mi (1,786.12 km) |
| Castle Bromwich to Ovada | 721.62 mi (1,161.33 km) |
| Castle Bromwich to Ozieri | 967.80 mi (1,557.53 km) |
| Castle Bromwich to Paceco | 1,217.05 mi (1,958.65 km) |
