| Fleron to Navodari | 1,150.04 mi (1,850.81 km) |
| Fleron to Negresti-Oas | 820.29 mi (1,320.13 km) |
| Fleron to Nehoiu | 1,016.52 mi (1,635.93 km) |
| Fleron to Ocna Mures | 879.16 mi (1,414.88 km) |
| Fleron to Odobesti | 1,036.03 mi (1,667.32 km) |
| Fleron to Odorheiu Secuiesc | 943.37 mi (1,518.21 km) |
| Fleron to Oltenita | 1,074.74 mi (1,729.63 km) |
| Fleron to Onesti | 1,008.37 mi (1,622.81 km) |
| Fleron to Oradea | 776.02 mi (1,248.88 km) |
| Fleron to Orastie | 868.20 mi (1,397.24 km) |
| Fleron to Oravita | 833.92 mi (1,342.06 km) |
| Fleron to Orsova | 874.95 mi (1,408.09 km) |
| Fleron to Otelu Rosu | 843.97 mi (1,358.25 km) |
| Fleron to Otopeni | 1,034.09 mi (1,664.21 km) |
| Fleron to Ovidiu | 1,149.56 mi (1,850.03 km) |
