| Sighetu Marmatiei to Octeville | 1,162.91 mi (1,871.52 km) |
| Sighetu Marmatiei to Oignies | 956.39 mi (1,539.16 km) |
| Sighetu Marmatiei to Oissel | 1,041.67 mi (1,676.41 km) |
| Sighetu Marmatiei to Olivet | 1,015.33 mi (1,634.02 km) |
| Sighetu Marmatiei to Ollioules | 931.26 mi (1,498.72 km) |
| Sighetu Marmatiei to Olonne-sur-Mer | 1,202.37 mi (1,935.03 km) |
| Sighetu Marmatiei to Oloron-Sainte-Marie | 1,223.66 mi (1,969.29 km) |
| Sighetu Marmatiei to Onet Village | 1,045.18 mi (1,682.06 km) |
| Sighetu Marmatiei to Onnaing | 929.56 mi (1,495.98 km) |
| Sighetu Marmatiei to Orange | 949.28 mi (1,527.72 km) |
| Sighetu Marmatiei to Orchies | 945.40 mi (1,521.47 km) |
| Sighetu Marmatiei to Orleans | 1,014.56 mi (1,632.77 km) |
| Sighetu Marmatiei to Orly | 985.81 mi (1,586.51 km) |
| Sighetu Marmatiei to Ormesson-sur-Marne | 978.97 mi (1,575.49 km) |
| Sighetu Marmatiei to Orsay | 995.41 mi (1,601.95 km) |
