| Ferguson to Octeville | 4,196.92 mi (6,754.30 km) |
| Ferguson to Oignies | 4,351.60 mi (7,003.23 km) |
| Ferguson to Oissel | 4,314.85 mi (6,944.08 km) |
| Ferguson to Olivet | 4,396.70 mi (7,075.80 km) |
| Ferguson to Ollioules | 4,730.36 mi (7,612.79 km) |
| Ferguson to Olonne-sur-Mer | 4,289.81 mi (6,903.79 km) |
| Ferguson to Oloron-Sainte-Marie | 4,452.13 mi (7,165.01 km) |
| Ferguson to Onet Village | 4,547.91 mi (7,319.16 km) |
| Ferguson to Onnaing | 4,377.56 mi (7,045.01 km) |
| Ferguson to Orange | 4,649.24 mi (7,482.22 km) |
| Ferguson to Orchies | 4,361.04 mi (7,018.42 km) |
| Ferguson to Orleans | 4,395.72 mi (7,074.23 km) |
| Ferguson to Orly | 4,386.43 mi (7,059.27 km) |
| Ferguson to Ormesson-sur-Marne | 4,390.77 mi (7,066.26 km) |
| Ferguson to Orsay | 4,379.83 mi (7,048.66 km) |
