| Fagnano Olona to Octeville | 559.81 mi (900.93 km) |
| Fagnano Olona to Oignies | 428.25 mi (689.20 km) |
| Fagnano Olona to Oissel | 442.57 mi (712.25 km) |
| Fagnano Olona to Olivet | 362.79 mi (583.85 km) |
| Fagnano Olona to Ollioules | 229.56 mi (369.43 km) |
| Fagnano Olona to Olonne-sur-Mer | 512.85 mi (825.35 km) |
| Fagnano Olona to Oloron-Sainte-Marie | 497.28 mi (800.29 km) |
| Fagnano Olona to Onet Village | 319.21 mi (513.72 km) |
| Fagnano Olona to Onnaing | 406.81 mi (654.69 km) |
| Fagnano Olona to Orange | 224.85 mi (361.85 km) |
| Fagnano Olona to Orchies | 421.34 mi (678.08 km) |
| Fagnano Olona to Orleans | 363.44 mi (584.90 km) |
| Fagnano Olona to Orly | 370.67 mi (596.54 km) |
| Fagnano Olona to Ormesson-sur-Marne | 366.70 mi (590.15 km) |
| Fagnano Olona to Orsay | 376.94 mi (606.63 km) |
