| Charlton Kings to Orbetello | 899.42 mi (1,447.47 km) |
| Charlton Kings to Oria | 1,219.66 mi (1,962.85 km) |
| Charlton Kings to Oristano | 970.77 mi (1,562.30 km) |
| Charlton Kings to Orta Nova | 1,109.19 mi (1,785.07 km) |
| Charlton Kings to Orte | 936.75 mi (1,507.55 km) |
| Charlton Kings to Ortona | 1,011.65 mi (1,628.09 km) |
| Charlton Kings to Orvieto | 914.09 mi (1,471.09 km) |
| Charlton Kings to Orzinuovi | 705.42 mi (1,135.26 km) |
| Charlton Kings to Osimo | 923.34 mi (1,485.98 km) |
| Charlton Kings to Ospitaletto | 703.00 mi (1,131.36 km) |
| Charlton Kings to Ostuni | 1,206.16 mi (1,941.12 km) |
| Charlton Kings to Ottaviano | 1,091.47 mi (1,756.55 km) |
| Charlton Kings to Ovada | 700.40 mi (1,127.18 km) |
| Charlton Kings to Ozieri | 940.30 mi (1,513.27 km) |
| Charlton Kings to Paceco | 1,192.02 mi (1,918.37 km) |
