| Fort Atkinson to Octeville | 3,950.72 mi (6,358.06 km) |
| Fort Atkinson to Oignies | 4,098.21 mi (6,595.43 km) |
| Fort Atkinson to Oissel | 4,066.59 mi (6,544.54 km) |
| Fort Atkinson to Olivet | 4,151.79 mi (6,681.66 km) |
| Fort Atkinson to Ollioules | 4,493.84 mi (7,232.13 km) |
| Fort Atkinson to Olonne-sur-Mer | 4,053.35 mi (6,523.24 km) |
| Fort Atkinson to Oloron-Sainte-Marie | 4,224.80 mi (6,799.15 km) |
| Fort Atkinson to Onet Village | 4,312.41 mi (6,940.16 km) |
| Fort Atkinson to Onnaing | 4,123.78 mi (6,636.58 km) |
| Fort Atkinson to Orange | 4,411.34 mi (7,099.36 km) |
| Fort Atkinson to Orchies | 4,107.38 mi (6,610.19 km) |
| Fort Atkinson to Orleans | 4,150.69 mi (6,679.89 km) |
| Fort Atkinson to Orly | 4,138.44 mi (6,660.18 km) |
| Fort Atkinson to Ormesson-sur-Marne | 4,142.51 mi (6,666.72 km) |
| Fort Atkinson to Orsay | 4,132.20 mi (6,650.14 km) |
