| Jefferson to Octeville | 4,134.04 mi (6,653.09 km) |
| Jefferson to Oignies | 4,307.78 mi (6,932.71 km) |
| Jefferson to Oissel | 4,256.30 mi (6,849.85 km) |
| Jefferson to Olivet | 4,327.53 mi (6,964.49 km) |
| Jefferson to Ollioules | 4,634.42 mi (7,458.39 km) |
| Jefferson to Olonne-sur-Mer | 4,199.20 mi (6,757.96 km) |
| Jefferson to Oloron-Sainte-Marie | 4,336.39 mi (6,978.74 km) |
| Jefferson to Onet Village | 4,451.50 mi (7,164.00 km) |
| Jefferson to Onnaing | 4,334.61 mi (6,975.89 km) |
| Jefferson to Orange | 4,557.87 mi (7,335.19 km) |
| Jefferson to Orchies | 4,317.92 mi (6,949.02 km) |
| Jefferson to Orleans | 4,326.91 mi (6,963.49 km) |
| Jefferson to Orly | 4,326.14 mi (6,962.25 km) |
| Jefferson to Ormesson-sur-Marne | 4,331.23 mi (6,970.45 km) |
| Jefferson to Orsay | 4,318.59 mi (6,950.11 km) |
