| Busto Garolfo to Octeville | 565.14 mi (909.50 km) |
| Busto Garolfo to Oignies | 435.41 mi (700.72 km) |
| Busto Garolfo to Oissel | 448.41 mi (721.65 km) |
| Busto Garolfo to Olivet | 367.47 mi (591.39 km) |
| Busto Garolfo to Ollioules | 224.14 mi (360.71 km) |
| Busto Garolfo to Olonne-sur-Mer | 515.36 mi (829.40 km) |
| Busto Garolfo to Oloron-Sainte-Marie | 495.91 mi (798.09 km) |
| Busto Garolfo to Onet Village | 318.25 mi (512.18 km) |
| Busto Garolfo to Onnaing | 414.12 mi (666.47 km) |
| Busto Garolfo to Orange | 222.17 mi (357.55 km) |
| Busto Garolfo to Orchies | 428.58 mi (689.73 km) |
| Busto Garolfo to Orleans | 368.17 mi (592.52 km) |
| Busto Garolfo to Orly | 376.47 mi (605.87 km) |
| Busto Garolfo to Ormesson-sur-Marne | 372.60 mi (599.63 km) |
| Busto Garolfo to Orsay | 382.62 mi (615.77 km) |
