| Omegna to Octeville | 533.27 mi (858.22 km) |
| Omegna to Oignies | 403.30 mi (649.06 km) |
| Omegna to Oissel | 416.11 mi (669.66 km) |
| Omegna to Olivet | 336.42 mi (541.42 km) |
| Omegna to Ollioules | 227.39 mi (365.94 km) |
| Omegna to Olonne-sur-Mer | 488.53 mi (786.21 km) |
| Omegna to Oloron-Sainte-Marie | 480.74 mi (773.68 km) |
| Omegna to Onet Village | 301.98 mi (485.98 km) |
| Omegna to Onnaing | 382.26 mi (615.19 km) |
| Omegna to Orange | 212.87 mi (342.58 km) |
| Omegna to Orchies | 396.59 mi (638.25 km) |
| Omegna to Orleans | 337.05 mi (542.44 km) |
| Omegna to Orly | 344.19 mi (553.93 km) |
| Omegna to Ormesson-sur-Marne | 340.26 mi (547.59 km) |
| Omegna to Orsay | 350.43 mi (563.97 km) |
