| Hartselle to Octeville | 4,260.53 mi (6,856.65 km) |
| Hartselle to Oignies | 4,428.91 mi (7,127.64 km) |
| Hartselle to Oissel | 4,381.75 mi (7,051.75 km) |
| Hartselle to Olivet | 4,456.26 mi (7,171.66 km) |
| Hartselle to Ollioules | 4,771.37 mi (7,678.78 km) |
| Hartselle to Olonne-sur-Mer | 4,333.86 mi (6,974.67 km) |
| Hartselle to Oloron-Sainte-Marie | 4,478.27 mi (7,207.07 km) |
| Hartselle to Onet Village | 4,588.26 mi (7,384.09 km) |
| Hartselle to Onnaing | 4,455.53 mi (7,170.48 km) |
| Hartselle to Orange | 4,693.41 mi (7,553.31 km) |
| Hartselle to Orchies | 4,438.85 mi (7,143.65 km) |
| Hartselle to Orleans | 4,455.53 mi (7,170.48 km) |
| Hartselle to Orly | 4,452.25 mi (7,165.20 km) |
| Hartselle to Ormesson-sur-Marne | 4,457.13 mi (7,173.05 km) |
| Hartselle to Orsay | 4,444.97 mi (7,153.48 km) |
