| Hudson to Octeville | 3,727.58 mi (5,998.96 km) |
| Hudson to Oignies | 3,889.89 mi (6,260.17 km) |
| Hudson to Oissel | 3,847.36 mi (6,191.73 km) |
| Hudson to Olivet | 3,925.56 mi (6,317.59 km) |
| Hudson to Ollioules | 4,251.22 mi (6,841.68 km) |
| Hudson to Olonne-sur-Mer | 3,811.43 mi (6,133.91 km) |
| Hudson to Oloron-Sainte-Marie | 3,967.04 mi (6,384.34 km) |
| Hudson to Onet Village | 4,068.29 mi (6,547.29 km) |
| Hudson to Onnaing | 3,916.26 mi (6,302.60 km) |
| Hudson to Orange | 4,171.33 mi (6,713.10 km) |
| Hudson to Orchies | 3,899.63 mi (6,275.85 km) |
| Hudson to Orleans | 3,924.71 mi (6,316.21 km) |
| Hudson to Orly | 3,918.46 mi (6,306.15 km) |
| Hudson to Ormesson-sur-Marne | 3,923.09 mi (6,313.60 km) |
| Hudson to Orsay | 3,911.50 mi (6,294.95 km) |
