| Defiance to Octeville | 3,844.82 mi (6,187.64 km) |
| Defiance to Oignies | 4,002.85 mi (6,441.97 km) |
| Defiance to Oissel | 3,963.57 mi (6,378.74 km) |
| Defiance to Olivet | 4,043.92 mi (6,508.07 km) |
| Defiance to Ollioules | 4,374.62 mi (7,040.27 km) |
| Defiance to Olonne-sur-Mer | 3,934.25 mi (6,331.57 km) |
| Defiance to Oloron-Sainte-Marie | 4,094.47 mi (6,589.41 km) |
| Defiance to Onet Village | 4,191.97 mi (6,746.32 km) |
| Defiance to Onnaing | 4,029.01 mi (6,484.06 km) |
| Defiance to Orange | 4,293.91 mi (6,910.39 km) |
| Defiance to Orchies | 4,012.43 mi (6,457.38 km) |
| Defiance to Orleans | 4,043.00 mi (6,506.57 km) |
| Defiance to Orly | 4,034.96 mi (6,493.64 km) |
| Defiance to Ormesson-sur-Marne | 4,039.42 mi (6,500.82 km) |
| Defiance to Orsay | 4,028.21 mi (6,482.77 km) |
