| Langenthal to Idar-Oberstein | 173.71 mi (279.55 km) |
| Langenthal to Idstein | 208.75 mi (335.95 km) |
| Langenthal to Illertissen | 127.29 mi (204.86 km) |
| Langenthal to Illingen | 152.95 mi (246.15 km) |
| Langenthal to Ilmenau | 278.58 mi (448.32 km) |
| Langenthal to Ilsede | 364.95 mi (587.33 km) |
| Langenthal to Ilsenburg | 346.52 mi (557.68 km) |
| Langenthal to Ilsfeld | 143.59 mi (231.08 km) |
| Langenthal to Ilvesheim | 159.96 mi (257.44 km) |
| Langenthal to Immenstadt im Allgau | 116.36 mi (187.26 km) |
| Langenthal to Ingelheim | 190.97 mi (307.33 km) |
| Langenthal to Ingolstadt | 199.40 mi (320.90 km) |
| Langenthal to Iserlohn | 287.93 mi (463.38 km) |
| Langenthal to Isernhagen-Sud | 372.12 mi (598.86 km) |
| Langenthal to Ismaning | 193.74 mi (311.80 km) |
