| Gross-Enzersdorf to Oria | 534.69 mi (860.50 km) |
| Gross-Enzersdorf to Oristano | 695.29 mi (1,118.96 km) |
| Gross-Enzersdorf to Orta Nova | 476.39 mi (766.67 km) |
| Gross-Enzersdorf to Orte | 445.01 mi (716.17 km) |
| Gross-Enzersdorf to Ortona | 417.45 mi (671.82 km) |
| Gross-Enzersdorf to Orvieto | 435.42 mi (700.74 km) |
| Gross-Enzersdorf to Orzinuovi | 367.73 mi (591.80 km) |
| Gross-Enzersdorf to Osimo | 357.69 mi (575.64 km) |
| Gross-Enzersdorf to Ospitaletto | 356.14 mi (573.15 km) |
| Gross-Enzersdorf to Ostuni | 518.40 mi (834.28 km) |
| Gross-Enzersdorf to Ottaviano | 517.94 mi (833.55 km) |
| Gross-Enzersdorf to Ovada | 449.37 mi (723.19 km) |
| Gross-Enzersdorf to Ozieri | 644.03 mi (1,036.46 km) |
| Gross-Enzersdorf to Paceco | 733.92 mi (1,181.13 km) |
| Gross-Enzersdorf to Pachino | 796.81 mi (1,282.35 km) |
