| Halberstadt to Octeville | 575.49 mi (926.16 km) |
| Halberstadt to Oignies | 362.23 mi (582.95 km) |
| Halberstadt to Oissel | 470.26 mi (756.81 km) |
| Halberstadt to Olivet | 492.81 mi (793.11 km) |
| Halberstadt to Ollioules | 651.43 mi (1,048.38 km) |
| Halberstadt to Olonne-sur-Mer | 685.46 mi (1,103.14 km) |
| Halberstadt to Oloron-Sainte-Marie | 808.52 mi (1,301.18 km) |
| Halberstadt to Onet Village | 649.20 mi (1,044.79 km) |
| Halberstadt to Onnaing | 339.10 mi (545.73 km) |
| Halberstadt to Orange | 608.06 mi (978.58 km) |
| Halberstadt to Orchies | 351.69 mi (565.99 km) |
| Halberstadt to Orleans | 490.87 mi (789.99 km) |
| Halberstadt to Orly | 439.11 mi (706.68 km) |
| Halberstadt to Ormesson-sur-Marne | 431.98 mi (695.20 km) |
| Halberstadt to Orsay | 448.69 mi (722.09 km) |
