| Bad Salzdetfurth to Octeville | 534.83 mi (860.73 km) |
| Bad Salzdetfurth to Oignies | 322.56 mi (519.11 km) |
| Bad Salzdetfurth to Oissel | 432.84 mi (696.59 km) |
| Bad Salzdetfurth to Olivet | 462.29 mi (743.99 km) |
| Bad Salzdetfurth to Ollioules | 646.21 mi (1,039.97 km) |
| Bad Salzdetfurth to Olonne-sur-Mer | 652.73 mi (1,050.47 km) |
| Bad Salzdetfurth to Oloron-Sainte-Marie | 785.75 mi (1,264.54 km) |
| Bad Salzdetfurth to Onet Village | 631.39 mi (1,016.13 km) |
| Bad Salzdetfurth to Onnaing | 300.51 mi (483.62 km) |
| Bad Salzdetfurth to Orange | 597.56 mi (961.68 km) |
| Bad Salzdetfurth to Orchies | 312.26 mi (502.54 km) |
| Bad Salzdetfurth to Orleans | 460.22 mi (740.66 km) |
| Bad Salzdetfurth to Orly | 406.07 mi (653.51 km) |
| Bad Salzdetfurth to Ormesson-sur-Marne | 399.05 mi (642.20 km) |
| Bad Salzdetfurth to Orsay | 415.44 mi (668.59 km) |
