| Fairfax to Octeville | 3,656.60 mi (5,884.73 km) |
| Fairfax to Oignies | 3,829.81 mi (6,163.49 km) |
| Fairfax to Oissel | 3,778.72 mi (6,081.26 km) |
| Fairfax to Olivet | 3,850.57 mi (6,196.90 km) |
| Fairfax to Ollioules | 4,160.40 mi (6,695.51 km) |
| Fairfax to Olonne-sur-Mer | 3,724.09 mi (5,993.34 km) |
| Fairfax to Oloron-Sainte-Marie | 3,865.06 mi (6,220.22 km) |
| Fairfax to Onet Village | 3,977.35 mi (6,400.93 km) |
| Fairfax to Onnaing | 3,856.64 mi (6,206.66 km) |
| Fairfax to Orange | 4,083.19 mi (6,571.26 km) |
| Fairfax to Orchies | 3,839.94 mi (6,179.79 km) |
| Fairfax to Orleans | 3,849.92 mi (6,195.86 km) |
| Fairfax to Orly | 3,848.66 mi (6,193.82 km) |
| Fairfax to Ormesson-sur-Marne | 3,853.72 mi (6,201.97 km) |
| Fairfax to Orsay | 3,841.16 mi (6,181.75 km) |
