| Leiderdorp to Navodari | 1,225.68 mi (1,972.54 km) |
| Leiderdorp to Negresti-Oas | 886.59 mi (1,426.83 km) |
| Leiderdorp to Nehoiu | 1,092.06 mi (1,757.50 km) |
| Leiderdorp to Ocna Mures | 954.38 mi (1,535.92 km) |
| Leiderdorp to Odobesti | 1,107.78 mi (1,782.79 km) |
| Leiderdorp to Odorheiu Secuiesc | 1,015.81 mi (1,634.80 km) |
| Leiderdorp to Oltenita | 1,155.64 mi (1,859.82 km) |
| Leiderdorp to Onesti | 1,078.03 mi (1,734.92 km) |
| Leiderdorp to Oradea | 851.43 mi (1,370.25 km) |
| Leiderdorp to Orastie | 948.15 mi (1,525.90 km) |
| Leiderdorp to Oravita | 922.03 mi (1,483.86 km) |
| Leiderdorp to Orsova | 962.81 mi (1,549.49 km) |
| Leiderdorp to Otelu Rosu | 927.87 mi (1,493.26 km) |
| Leiderdorp to Otopeni | 1,114.11 mi (1,792.99 km) |
| Leiderdorp to Ovidiu | 1,225.54 mi (1,972.31 km) |
