| Altdorf to Idar-Oberstein | 205.70 mi (331.04 km) |
| Altdorf to Idstein | 232.31 mi (373.87 km) |
| Altdorf to Illertissen | 115.21 mi (185.41 km) |
| Altdorf to Illingen | 188.10 mi (302.71 km) |
| Altdorf to Ilmenau | 283.51 mi (456.26 km) |
| Altdorf to Ilsede | 379.49 mi (610.73 km) |
| Altdorf to Ilsenburg | 357.53 mi (575.39 km) |
| Altdorf to Ilsfeld | 153.52 mi (247.07 km) |
| Altdorf to Ilvesheim | 180.07 mi (289.79 km) |
| Altdorf to Immenstadt im Allgau | 88.66 mi (142.68 km) |
| Altdorf to Ingelheim | 216.36 mi (348.20 km) |
| Altdorf to Ingolstadt | 184.22 mi (296.48 km) |
| Altdorf to Iserlohn | 315.10 mi (507.11 km) |
| Altdorf to Isernhagen-Sud | 388.54 mi (625.29 km) |
| Altdorf to Ismaning | 170.03 mi (273.63 km) |
