| Warrenville to Octeville | 3,973.75 mi (6,395.13 km) |
| Warrenville to Oignies | 4,124.85 mi (6,638.30 km) |
| Warrenville to Oissel | 4,090.65 mi (6,583.27 km) |
| Warrenville to Olivet | 4,174.26 mi (6,717.81 km) |
| Warrenville to Ollioules | 4,512.51 mi (7,262.18 km) |
| Warrenville to Olonne-sur-Mer | 4,071.85 mi (6,553.01 km) |
| Warrenville to Oloron-Sainte-Marie | 4,239.32 mi (6,822.52 km) |
| Warrenville to Onet Village | 4,330.56 mi (6,969.36 km) |
| Warrenville to Onnaing | 4,150.62 mi (6,679.78 km) |
| Warrenville to Orange | 4,430.60 mi (7,130.37 km) |
| Warrenville to Orchies | 4,134.16 mi (6,653.29 km) |
| Warrenville to Orleans | 4,173.21 mi (6,716.14 km) |
| Warrenville to Orly | 4,162.39 mi (6,698.72 km) |
| Warrenville to Ormesson-sur-Marne | 4,166.59 mi (6,705.48 km) |
| Warrenville to Orsay | 4,155.98 mi (6,688.40 km) |
