| Smarjeske Toplice to Octeville | 823.49 mi (1,325.28 km) |
| Smarjeske Toplice to Oignies | 646.05 mi (1,039.71 km) |
| Smarjeske Toplice to Oissel | 699.52 mi (1,125.78 km) |
| Smarjeske Toplice to Olivet | 643.45 mi (1,035.52 km) |
| Smarjeske Toplice to Ollioules | 498.42 mi (802.13 km) |
| Smarjeske Toplice to Olonne-sur-Mer | 812.47 mi (1,307.55 km) |
| Smarjeske Toplice to Oloron-Sainte-Marie | 799.68 mi (1,286.97 km) |
| Smarjeske Toplice to Onet Village | 623.66 mi (1,003.68 km) |
| Smarjeske Toplice to Onnaing | 619.59 mi (997.13 km) |
| Smarjeske Toplice to Orange | 522.02 mi (840.11 km) |
| Smarjeske Toplice to Orchies | 636.23 mi (1,023.91 km) |
| Smarjeske Toplice to Orleans | 643.41 mi (1,035.47 km) |
| Smarjeske Toplice to Orly | 632.27 mi (1,017.54 km) |
| Smarjeske Toplice to Ormesson-sur-Marne | 626.52 mi (1,008.29 km) |
| Smarjeske Toplice to Orsay | 640.65 mi (1,031.03 km) |
