| Ashburn to Octeville | 3,656.42 mi (5,884.44 km) |
| Ashburn to Oignies | 3,829.04 mi (6,162.24 km) |
| Ashburn to Oissel | 3,778.42 mi (6,080.78 km) |
| Ashburn to Olivet | 3,850.66 mi (6,197.04 km) |
| Ashburn to Ollioules | 4,161.46 mi (6,697.22 km) |
| Ashburn to Olonne-sur-Mer | 3,724.87 mi (5,994.61 km) |
| Ashburn to Oloron-Sainte-Marie | 3,866.74 mi (6,222.92 km) |
| Ashburn to Onet Village | 3,978.39 mi (6,402.60 km) |
| Ashburn to Onnaing | 3,855.84 mi (6,205.37 km) |
| Ashburn to Orange | 4,084.08 mi (6,572.70 km) |
| Ashburn to Orchies | 3,839.15 mi (6,178.51 km) |
| Ashburn to Orleans | 3,850.00 mi (6,195.97 km) |
| Ashburn to Orly | 3,848.45 mi (6,193.48 km) |
| Ashburn to Ormesson-sur-Marne | 3,853.48 mi (6,201.58 km) |
| Ashburn to Orsay | 3,840.98 mi (6,181.45 km) |
