| Ljubljana to Nasaud | 476.74 mi (767.24 km) |
| Ljubljana to Navodari | 696.34 mi (1,120.65 km) |
| Ljubljana to Negresti-Oas | 438.61 mi (705.88 km) |
| Ljubljana to Nehoiu | 570.85 mi (918.70 km) |
| Ljubljana to Ocna Mures | 447.51 mi (720.19 km) |
| Ljubljana to Odobesti | 603.54 mi (971.31 km) |
| Ljubljana to Odorheiu Secuiesc | 516.35 mi (830.99 km) |
| Ljubljana to Oltenita | 606.65 mi (976.31 km) |
| Ljubljana to Onesti | 586.52 mi (943.91 km) |
| Ljubljana to Oradea | 359.11 mi (577.93 km) |
| Ljubljana to Orastie | 417.67 mi (672.17 km) |
| Ljubljana to Oravita | 354.22 mi (570.05 km) |
| Ljubljana to Orsova | 393.48 mi (633.25 km) |
| Ljubljana to Otelu Rosu | 379.70 mi (611.07 km) |
| Ljubljana to Otopeni | 570.95 mi (918.86 km) |
