| Hellesdon to Orbetello | 842.91 mi (1,356.54 km) |
| Hellesdon to Oria | 1,139.26 mi (1,833.47 km) |
| Hellesdon to Oristano | 946.46 mi (1,523.19 km) |
| Hellesdon to Orta Nova | 1,033.40 mi (1,663.10 km) |
| Hellesdon to Orte | 872.59 mi (1,404.29 km) |
| Hellesdon to Ortona | 936.76 mi (1,507.56 km) |
| Hellesdon to Orvieto | 850.02 mi (1,367.97 km) |
| Hellesdon to Orzinuovi | 635.90 mi (1,023.38 km) |
| Hellesdon to Osimo | 846.25 mi (1,361.91 km) |
| Hellesdon to Ospitaletto | 631.09 mi (1,015.63 km) |
| Hellesdon to Ostuni | 1,124.85 mi (1,810.27 km) |
| Hellesdon to Ottaviano | 1,024.51 mi (1,648.79 km) |
| Hellesdon to Ovada | 647.48 mi (1,042.02 km) |
| Hellesdon to Ozieri | 909.84 mi (1,464.25 km) |
| Hellesdon to Paceco | 1,149.29 mi (1,849.61 km) |
