| Sempeter pri Gorici to Octeville | 752.50 mi (1,211.04 km) |
| Sempeter pri Gorici to Oignies | 581.17 mi (935.30 km) |
| Sempeter pri Gorici to Oissel | 629.00 mi (1,012.27 km) |
| Sempeter pri Gorici to Olivet | 569.44 mi (916.43 km) |
| Sempeter pri Gorici to Ollioules | 429.13 mi (690.61 km) |
| Sempeter pri Gorici to Olonne-sur-Mer | 736.56 mi (1,185.38 km) |
| Sempeter pri Gorici to Oloron-Sainte-Marie | 725.13 mi (1,166.99 km) |
| Sempeter pri Gorici to Onet Village | 548.44 mi (882.63 km) |
| Sempeter pri Gorici to Onnaing | 555.20 mi (893.50 km) |
| Sempeter pri Gorici to Orange | 448.18 mi (721.27 km) |
| Sempeter pri Gorici to Orchies | 571.71 mi (920.07 km) |
| Sempeter pri Gorici to Orleans | 569.49 mi (916.51 km) |
| Sempeter pri Gorici to Orly | 560.67 mi (902.31 km) |
| Sempeter pri Gorici to Ormesson-sur-Marne | 555.13 mi (893.39 km) |
| Sempeter pri Gorici to Orsay | 568.82 mi (915.43 km) |
