| Reggiolo to Octeville | 667.48 mi (1,074.20 km) |
| Reggiolo to Oignies | 528.17 mi (850.00 km) |
| Reggiolo to Oissel | 549.31 mi (884.03 km) |
| Reggiolo to Olivet | 470.80 mi (757.68 km) |
| Reggiolo to Ollioules | 275.68 mi (443.66 km) |
| Reggiolo to Olonne-sur-Mer | 616.75 mi (992.57 km) |
| Reggiolo to Oloron-Sainte-Marie | 579.06 mi (931.90 km) |
| Reggiolo to Onet Village | 405.87 mi (653.19 km) |
| Reggiolo to Onnaing | 505.27 mi (813.16 km) |
| Reggiolo to Orange | 300.66 mi (483.87 km) |
| Reggiolo to Orchies | 520.52 mi (837.69 km) |
| Reggiolo to Orleans | 471.46 mi (758.74 km) |
| Reggiolo to Orly | 477.58 mi (768.59 km) |
| Reggiolo to Ormesson-sur-Marne | 473.38 mi (761.82 km) |
| Reggiolo to Orsay | 484.11 mi (779.10 km) |
