| Langenthal to Oberkirch | 92.02 mi (148.10 km) |
| Langenthal to Obernburg am Main | 191.60 mi (308.35 km) |
| Langenthal to Obernkirchen | 353.94 mi (569.60 km) |
| Langenthal to Oberschleissheim | 189.73 mi (305.35 km) |
| Langenthal to Oberstdorf | 117.67 mi (189.38 km) |
| Langenthal to Obertraubling | 235.60 mi (379.16 km) |
| Langenthal to Obertshausen | 202.66 mi (326.15 km) |
| Langenthal to Oberursel | 209.50 mi (337.16 km) |
| Langenthal to Ochsenfurt | 198.03 mi (318.69 km) |
| Langenthal to Ochsenhausen | 116.82 mi (188.01 km) |
| Langenthal to Ochtrup | 345.71 mi (556.37 km) |
| Langenthal to Odenthal | 265.42 mi (427.14 km) |
| Langenthal to Oelde | 319.40 mi (514.02 km) |
| Langenthal to Oelsnitz | 297.65 mi (479.02 km) |
| Langenthal to Oer-Erkenschwick | 306.70 mi (493.59 km) |
