| Fort Campbell North to Octeville | 4,179.08 mi (6,725.59 km) |
| Fort Campbell North to Oignies | 4,342.38 mi (6,988.39 km) |
| Fort Campbell North to Oissel | 4,299.17 mi (6,918.85 km) |
| Fort Campbell North to Olivet | 4,376.62 mi (7,043.48 km) |
| Fort Campbell North to Ollioules | 4,699.41 mi (7,562.97 km) |
| Fort Campbell North to Olonne-sur-Mer | 4,260.19 mi (6,856.12 km) |
| Fort Campbell North to Oloron-Sainte-Marie | 4,411.97 mi (7,100.39 km) |
| Fort Campbell North to Onet Village | 4,516.36 mi (7,268.38 km) |
| Fort Campbell North to Onnaing | 4,368.78 mi (7,030.87 km) |
| Fort Campbell North to Orange | 4,620.10 mi (7,435.33 km) |
| Fort Campbell North to Orchies | 4,352.14 mi (7,004.10 km) |
| Fort Campbell North to Orleans | 4,375.79 mi (7,042.15 km) |
| Fort Campbell North to Orly | 4,370.16 mi (7,033.10 km) |
| Fort Campbell North to Ormesson-sur-Marne | 4,374.84 mi (7,040.63 km) |
| Fort Campbell North to Orsay | 4,363.14 mi (7,021.80 km) |
