| Langenthal to Oerlinghausen | 330.56 mi (531.99 km) |
| Langenthal to Oestrich-Winkel | 192.56 mi (309.90 km) |
| Langenthal to Offenburg | 86.65 mi (139.44 km) |
| Langenthal to Oftersheim | 153.31 mi (246.73 km) |
| Langenthal to Ohrdruf | 283.00 mi (455.45 km) |
| Langenthal to Ohringen | 158.19 mi (254.58 km) |
| Langenthal to Olbernhau | 346.61 mi (557.81 km) |
| Langenthal to Olching | 177.75 mi (286.06 km) |
| Langenthal to Oldenburg | 409.97 mi (659.78 km) |
| Langenthal to Oldenburg in Holstein | 507.69 mi (817.05 km) |
| Langenthal to Olfen | 311.44 mi (501.21 km) |
| Langenthal to Olpe | 262.56 mi (422.56 km) |
| Langenthal to Olsberg | 287.32 mi (462.39 km) |
| Langenthal to Oranienburg | 452.58 mi (728.36 km) |
| Langenthal to Ortenberg | 224.48 mi (361.26 km) |
