| Eau Claire to Octeville | 3,968.66 mi (6,386.94 km) |
| Eau Claire to Oignies | 4,107.42 mi (6,610.25 km) |
| Eau Claire to Oissel | 4,081.88 mi (6,569.14 km) |
| Eau Claire to Olivet | 4,170.60 mi (6,711.94 km) |
| Eau Claire to Ollioules | 4,520.63 mi (7,275.25 km) |
| Eau Claire to Olonne-sur-Mer | 4,081.42 mi (6,568.41 km) |
| Eau Claire to Oloron-Sainte-Marie | 4,261.41 mi (6,858.07 km) |
| Eau Claire to Onet Village | 4,340.73 mi (6,985.74 km) |
| Eau Claire to Onnaing | 4,132.44 mi (6,650.53 km) |
| Eau Claire to Orange | 4,436.93 mi (7,140.55 km) |
| Eau Claire to Orchies | 4,116.25 mi (6,624.46 km) |
| Eau Claire to Orleans | 4,169.37 mi (6,709.96 km) |
| Eau Claire to Orly | 4,153.85 mi (6,684.98 km) |
| Eau Claire to Ormesson-sur-Marne | 4,157.59 mi (6,690.99 km) |
| Eau Claire to Orsay | 4,148.04 mi (6,675.62 km) |
