| Leer to Navodari | 1,136.72 mi (1,829.37 km) |
| Leer to Negresti-Oas | 790.59 mi (1,272.33 km) |
| Leer to Nehoiu | 1,004.23 mi (1,616.15 km) |
| Leer to Ocna Mures | 867.83 mi (1,396.63 km) |
| Leer to Odobesti | 1,015.21 mi (1,633.82 km) |
| Leer to Odorheiu Secuiesc | 925.07 mi (1,488.75 km) |
| Leer to Oltenita | 1,074.13 mi (1,728.64 km) |
| Leer to Onesti | 983.36 mi (1,582.56 km) |
| Leer to Oradea | 766.80 mi (1,234.04 km) |
| Leer to Orastie | 867.87 mi (1,396.70 km) |
| Leer to Oravita | 854.08 mi (1,374.51 km) |
| Leer to Orsova | 893.82 mi (1,438.47 km) |
| Leer to Otelu Rosu | 853.44 mi (1,373.47 km) |
| Leer to Otopeni | 1,031.85 mi (1,660.60 km) |
| Leer to Ovidiu | 1,137.00 mi (1,829.82 km) |
