| Preddvor to Octeville | 776.02 mi (1,248.88 km) |
| Preddvor to Oignies | 597.14 mi (961.01 km) |
| Preddvor to Oissel | 651.91 mi (1,049.16 km) |
| Preddvor to Olivet | 598.08 mi (962.51 km) |
| Preddvor to Ollioules | 473.98 mi (762.79 km) |
| Preddvor to Olonne-sur-Mer | 770.09 mi (1,239.34 km) |
| Preddvor to Oloron-Sainte-Marie | 766.70 mi (1,233.89 km) |
| Preddvor to Onet Village | 589.23 mi (948.28 km) |
| Preddvor to Onnaing | 570.64 mi (918.36 km) |
| Preddvor to Orange | 490.73 mi (789.75 km) |
| Preddvor to Orchies | 587.29 mi (945.16 km) |
| Preddvor to Orleans | 597.96 mi (962.33 km) |
| Preddvor to Orly | 585.19 mi (941.78 km) |
| Preddvor to Ormesson-sur-Marne | 579.35 mi (932.37 km) |
| Preddvor to Orsay | 593.70 mi (955.47 km) |
