| San Vito al Tagliamento to Octeville | 719.98 mi (1,158.69 km) |
| San Vito al Tagliamento to Oignies | 552.92 mi (889.85 km) |
| San Vito al Tagliamento to Oissel | 596.90 mi (960.62 km) |
| San Vito al Tagliamento to Olivet | 534.85 mi (860.75 km) |
| San Vito al Tagliamento to Ollioules | 394.73 mi (635.26 km) |
| San Vito al Tagliamento to Olonne-sur-Mer | 700.24 mi (1,126.92 km) |
| San Vito al Tagliamento to Oloron-Sainte-Marie | 688.32 mi (1,107.75 km) |
| San Vito al Tagliamento to Onet Village | 511.45 mi (823.10 km) |
| San Vito al Tagliamento to Onnaing | 527.33 mi (848.66 km) |
| San Vito al Tagliamento to Orange | 411.69 mi (662.54 km) |
| San Vito al Tagliamento to Orchies | 543.72 mi (875.03 km) |
| San Vito al Tagliamento to Orleans | 534.96 mi (860.94 km) |
| San Vito al Tagliamento to Orly | 527.90 mi (849.57 km) |
| San Vito al Tagliamento to Ormesson-sur-Marne | 522.51 mi (840.90 km) |
| San Vito al Tagliamento to Orsay | 535.87 mi (862.40 km) |
