| Cave Spring to Octeville | 3,841.87 mi (6,182.89 km) |
| Cave Spring to Oignies | 4,014.75 mi (6,461.11 km) |
| Cave Spring to Oissel | 3,963.94 mi (6,379.35 km) |
| Cave Spring to Olivet | 4,035.90 mi (6,495.15 km) |
| Cave Spring to Ollioules | 4,345.47 mi (6,993.35 km) |
| Cave Spring to Olonne-sur-Mer | 3,909.31 mi (6,291.43 km) |
| Cave Spring to Oloron-Sainte-Marie | 4,049.59 mi (6,517.19 km) |
| Cave Spring to Onet Village | 4,162.44 mi (6,698.80 km) |
| Cave Spring to Onnaing | 4,041.55 mi (6,504.25 km) |
| Cave Spring to Orange | 4,268.36 mi (6,869.26 km) |
| Cave Spring to Orchies | 4,024.86 mi (6,477.38 km) |
| Cave Spring to Orleans | 4,035.25 mi (6,494.11 km) |
| Cave Spring to Orly | 4,033.92 mi (6,491.96 km) |
| Cave Spring to Ormesson-sur-Marne | 4,038.97 mi (6,500.09 km) |
| Cave Spring to Orsay | 4,026.43 mi (6,479.91 km) |
