| Ann Arbor to Octeville | 3,776.44 mi (6,077.59 km) |
| Ann Arbor to Oignies | 3,933.07 mi (6,329.66 km) |
| Ann Arbor to Oissel | 3,894.81 mi (6,268.09 km) |
| Ann Arbor to Olivet | 3,975.89 mi (6,398.58 km) |
| Ann Arbor to Ollioules | 4,308.48 mi (6,933.83 km) |
| Ann Arbor to Olonne-sur-Mer | 3,867.97 mi (6,224.89 km) |
| Ann Arbor to Oloron-Sainte-Marie | 4,030.22 mi (6,486.02 km) |
| Ann Arbor to Onet Village | 4,125.99 mi (6,640.13 km) |
| Ann Arbor to Onnaing | 3,959.15 mi (6,371.64 km) |
| Ann Arbor to Orange | 4,227.45 mi (6,803.43 km) |
| Ann Arbor to Orchies | 3,942.60 mi (6,345.00 km) |
| Ann Arbor to Orleans | 3,974.94 mi (6,397.05 km) |
| Ann Arbor to Orly | 3,966.29 mi (6,383.12 km) |
| Ann Arbor to Ormesson-sur-Marne | 3,970.70 mi (6,390.22 km) |
| Ann Arbor to Orsay | 3,959.61 mi (6,372.37 km) |
