| Gross-Enzersdorf to Navodari | 634.60 mi (1,021.29 km) |
| Gross-Enzersdorf to Negresti-Oas | 318.31 mi (512.27 km) |
| Gross-Enzersdorf to Nehoiu | 501.29 mi (806.75 km) |
| Gross-Enzersdorf to Ocna Mures | 364.49 mi (586.59 km) |
| Gross-Enzersdorf to Odobesti | 522.94 mi (841.59 km) |
| Gross-Enzersdorf to Odorheiu Secuiesc | 430.31 mi (692.52 km) |
| Gross-Enzersdorf to Oltenita | 559.64 mi (900.65 km) |
| Gross-Enzersdorf to Onesti | 497.45 mi (800.57 km) |
| Gross-Enzersdorf to Oradea | 261.86 mi (421.42 km) |
| Gross-Enzersdorf to Orastie | 352.63 mi (567.50 km) |
| Gross-Enzersdorf to Oravita | 327.05 mi (526.34 km) |
| Gross-Enzersdorf to Orsova | 367.31 mi (591.12 km) |
| Gross-Enzersdorf to Otelu Rosu | 330.74 mi (532.28 km) |
| Gross-Enzersdorf to Otopeni | 518.65 mi (834.69 km) |
| Gross-Enzersdorf to Ovidiu | 634.04 mi (1,020.39 km) |
