| Postojna to Octeville | 782.05 mi (1,258.59 km) |
| Postojna to Oignies | 609.73 mi (981.27 km) |
| Postojna to Oissel | 658.49 mi (1,059.74 km) |
| Postojna to Olivet | 599.06 mi (964.09 km) |
| Postojna to Ollioules | 450.75 mi (725.41 km) |
| Postojna to Olonne-sur-Mer | 765.61 mi (1,232.13 km) |
| Postojna to Oloron-Sainte-Marie | 750.80 mi (1,208.30 km) |
| Postojna to Onet Village | 574.79 mi (925.03 km) |
| Postojna to Onnaing | 583.65 mi (939.30 km) |
| Postojna to Orange | 473.20 mi (761.53 km) |
| Postojna to Orchies | 600.20 mi (965.92 km) |
| Postojna to Orleans | 599.11 mi (964.18 km) |
| Postojna to Orly | 590.26 mi (949.93 km) |
| Postojna to Ormesson-sur-Marne | 584.70 mi (940.99 km) |
| Postojna to Orsay | 598.43 mi (963.08 km) |
