| Frondenberg to Idstein | 89.26 mi (143.64 km) |
| Frondenberg to Illertissen | 247.45 mi (398.23 km) |
| Frondenberg to Illingen | 148.15 mi (238.42 km) |
| Frondenberg to Ilmenau | 147.31 mi (237.07 km) |
| Frondenberg to Ilsede | 116.84 mi (188.03 km) |
| Frondenberg to Ilsenburg | 127.95 mi (205.92 km) |
| Frondenberg to Ilsfeld | 179.71 mi (289.22 km) |
| Frondenberg to Ilvesheim | 142.57 mi (229.44 km) |
| Frondenberg to Immenstadt im Allgau | 291.32 mi (468.83 km) |
| Frondenberg to Ingelheim | 104.22 mi (167.73 km) |
| Frondenberg to Ingolstadt | 247.55 mi (398.39 km) |
| Frondenberg to Iserlohn | 7.46 mi (12.01 km) |
| Frondenberg to Isernhagen-Sud | 111.13 mi (178.85 km) |
| Frondenberg to Ismaning | 283.78 mi (456.69 km) |
| Frondenberg to Isny im Allgau | 280.29 mi (451.09 km) |
