| Langenthal to Nasaud | 778.18 mi (1,252.36 km) |
| Langenthal to Navodari | 1,020.43 mi (1,642.23 km) |
| Langenthal to Negresti-Oas | 729.64 mi (1,174.24 km) |
| Langenthal to Nehoiu | 891.54 mi (1,434.80 km) |
| Langenthal to Ocna Mures | 761.13 mi (1,224.92 km) |
| Langenthal to Odobesti | 920.35 mi (1,481.16 km) |
| Langenthal to Odorheiu Secuiesc | 829.70 mi (1,335.28 km) |
| Langenthal to Oltenita | 933.39 mi (1,502.15 km) |
| Langenthal to Onesti | 899.23 mi (1,447.17 km) |
| Langenthal to Oradea | 663.56 mi (1,067.89 km) |
| Langenthal to Orastie | 737.61 mi (1,187.06 km) |
| Langenthal to Oravita | 681.47 mi (1,096.72 km) |
| Langenthal to Orsova | 721.35 mi (1,160.90 km) |
| Langenthal to Otelu Rosu | 703.38 mi (1,131.98 km) |
| Langenthal to Otopeni | 896.42 mi (1,442.64 km) |
