| Altopascio to Octeville | 707.16 mi (1,138.06 km) |
| Altopascio to Oignies | 584.04 mi (939.92 km) |
| Altopascio to Oissel | 593.54 mi (955.21 km) |
| Altopascio to Olivet | 506.38 mi (814.94 km) |
| Altopascio to Ollioules | 246.92 mi (397.37 km) |
| Altopascio to Olonne-sur-Mer | 634.32 mi (1,020.84 km) |
| Altopascio to Oloron-Sainte-Marie | 566.98 mi (912.46 km) |
| Altopascio to Onet Village | 403.07 mi (648.68 km) |
| Altopascio to Onnaing | 562.63 mi (905.46 km) |
| Altopascio to Orange | 292.82 mi (471.25 km) |
| Altopascio to Orchies | 577.17 mi (928.86 km) |
| Altopascio to Orleans | 507.40 mi (816.58 km) |
| Altopascio to Orly | 521.60 mi (839.44 km) |
| Altopascio to Ormesson-sur-Marne | 518.17 mi (833.91 km) |
| Altopascio to Orsay | 527.16 mi (848.38 km) |
