| Blegny to Oignies | 121.00 mi (194.73 km) |
| Blegny to Oissel | 225.50 mi (362.90 km) |
| Blegny to Olivet | 259.48 mi (417.59 km) |
| Blegny to Ollioules | 520.11 mi (837.04 km) |
| Blegny to Olonne-sur-Mer | 445.79 mi (717.43 km) |
| Blegny to Oloron-Sainte-Marie | 596.19 mi (959.47 km) |
| Blegny to Onet Village | 459.24 mi (739.08 km) |
| Blegny to Onnaing | 95.74 mi (154.08 km) |
| Blegny to Orange | 453.12 mi (729.23 km) |
| Blegny to Orchies | 110.03 mi (177.07 km) |
| Blegny to Orleans | 257.19 mi (413.91 km) |
| Blegny to Orly | 199.79 mi (321.53 km) |
| Blegny to Ormesson-sur-Marne | 192.98 mi (310.57 km) |
| Blegny to Orsay | 208.83 mi (336.08 km) |
| Blegny to Orthez | 582.29 mi (937.11 km) |
