| Hersham to Orbetello | 823.34 mi (1,325.03 km) |
| Hersham to Oria | 1,141.13 mi (1,836.47 km) |
| Hersham to Oristano | 901.74 mi (1,451.21 km) |
| Hersham to Orta Nova | 1,030.97 mi (1,659.19 km) |
| Hersham to Orte | 859.63 mi (1,383.44 km) |
| Hersham to Ortona | 933.44 mi (1,502.23 km) |
| Hersham to Orvieto | 836.95 mi (1,346.95 km) |
| Hersham to Orzinuovi | 627.37 mi (1,009.65 km) |
| Hersham to Osimo | 844.90 mi (1,359.74 km) |
| Hersham to Ospitaletto | 624.73 mi (1,005.41 km) |
| Hersham to Ostuni | 1,127.57 mi (1,814.64 km) |
| Hersham to Ottaviano | 1,014.16 mi (1,632.14 km) |
| Hersham to Ovada | 624.45 mi (1,004.95 km) |
| Hersham to Ozieri | 869.61 mi (1,399.50 km) |
| Hersham to Paceco | 1,118.93 mi (1,800.75 km) |
