| Buckhall to Orbetello | 4,434.15 mi (7,136.08 km) |
| Buckhall to Oria | 4,787.07 mi (7,704.04 km) |
| Buckhall to Oristano | 4,403.07 mi (7,086.06 km) |
| Buckhall to Orta Nova | 4,671.67 mi (7,518.33 km) |
| Buckhall to Orte | 4,485.12 mi (7,218.10 km) |
| Buckhall to Ortona | 4,577.07 mi (7,366.09 km) |
| Buckhall to Orvieto | 4,464.00 mi (7,184.11 km) |
| Buckhall to Orzinuovi | 4,279.38 mi (6,887.00 km) |
| Buckhall to Osimo | 4,496.89 mi (7,237.05 km) |
| Buckhall to Ospitaletto | 4,280.34 mi (6,888.54 km) |
| Buckhall to Ostuni | 4,775.93 mi (7,686.11 km) |
| Buckhall to Ottaviano | 4,635.20 mi (7,459.63 km) |
| Buckhall to Ovada | 4,248.31 mi (6,837.00 km) |
| Buckhall to Ozieri | 4,398.66 mi (7,078.96 km) |
| Buckhall to Paceco | 4,653.78 mi (7,489.53 km) |
