| Chigwell to Orbetello | 821.42 mi (1,321.95 km) |
| Chigwell to Oria | 1,134.51 mi (1,825.81 km) |
| Chigwell to Oristano | 906.30 mi (1,458.54 km) |
| Chigwell to Orta Nova | 1,025.24 mi (1,649.96 km) |
| Chigwell to Orte | 856.16 mi (1,377.86 km) |
| Chigwell to Ortona | 927.80 mi (1,493.14 km) |
| Chigwell to Orvieto | 833.48 mi (1,341.36 km) |
| Chigwell to Orzinuovi | 622.35 mi (1,001.58 km) |
| Chigwell to Osimo | 838.67 mi (1,349.70 km) |
| Chigwell to Ospitaletto | 619.19 mi (996.49 km) |
| Chigwell to Ostuni | 1,120.73 mi (1,803.64 km) |
| Chigwell to Ottaviano | 1,010.28 mi (1,625.89 km) |
| Chigwell to Ovada | 622.95 mi (1,002.54 km) |
| Chigwell to Ozieri | 872.96 mi (1,404.89 km) |
| Chigwell to Paceco | 1,120.05 mi (1,802.54 km) |
