| Blankenburg to Octeville | 570.68 mi (918.42 km) |
| Blankenburg to Oignies | 357.24 mi (574.92 km) |
| Blankenburg to Oissel | 464.70 mi (747.86 km) |
| Blankenburg to Olivet | 486.17 mi (782.42 km) |
| Blankenburg to Ollioules | 643.62 mi (1,035.81 km) |
| Blankenburg to Olonne-sur-Mer | 679.06 mi (1,092.84 km) |
| Blankenburg to Oloron-Sainte-Marie | 801.13 mi (1,289.29 km) |
| Blankenburg to Onet Village | 641.57 mi (1,032.51 km) |
| Blankenburg to Onnaing | 333.87 mi (537.31 km) |
| Blankenburg to Orange | 600.25 mi (966.00 km) |
| Blankenburg to Orchies | 346.64 mi (557.87 km) |
| Blankenburg to Orleans | 484.25 mi (779.33 km) |
| Blankenburg to Orly | 432.82 mi (696.56 km) |
| Blankenburg to Ormesson-sur-Marne | 425.67 mi (685.06 km) |
| Blankenburg to Orsay | 442.42 mi (712.01 km) |
