| West Derby to Orbetello | 998.44 mi (1,606.83 km) |
| West Derby to Oria | 1,308.99 mi (2,106.61 km) |
| West Derby to Oristano | 1,079.02 mi (1,736.51 km) |
| West Derby to Orta Nova | 1,200.63 mi (1,932.23 km) |
| West Derby to Orte | 1,032.94 mi (1,662.35 km) |
| West Derby to Ortona | 1,103.32 mi (1,775.62 km) |
| West Derby to Orvieto | 1,010.25 mi (1,625.85 km) |
| West Derby to Orzinuovi | 798.52 mi (1,285.10 km) |
| West Derby to Osimo | 1,013.75 mi (1,631.47 km) |
| West Derby to Ospitaletto | 795.03 mi (1,279.48 km) |
| West Derby to Ostuni | 1,294.99 mi (2,084.09 km) |
| West Derby to Ottaviano | 1,186.86 mi (1,910.07 km) |
| West Derby to Ovada | 799.93 mi (1,287.37 km) |
| West Derby to Ozieri | 1,047.14 mi (1,685.22 km) |
| West Derby to Paceco | 1,296.15 mi (2,085.95 km) |
