| Regensburg to Idar-Oberstein | 219.90 mi (353.90 km) |
| Regensburg to Idstein | 189.69 mi (305.27 km) |
| Regensburg to Illertissen | 106.77 mi (171.83 km) |
| Regensburg to Illingen | 228.45 mi (367.66 km) |
| Regensburg to Ilmenau | 126.32 mi (203.29 km) |
| Regensburg to Ilsede | 239.47 mi (385.39 km) |
| Regensburg to Ilsenburg | 206.32 mi (332.03 km) |
| Regensburg to Ilsfeld | 128.36 mi (206.57 km) |
| Regensburg to Ilvesheim | 161.67 mi (260.18 km) |
| Regensburg to Immenstadt im Allgau | 131.90 mi (212.27 km) |
| Regensburg to Ingelheim | 192.42 mi (309.68 km) |
| Regensburg to Ingolstadt | 34.66 mi (55.78 km) |
| Regensburg to Iserlohn | 254.66 mi (409.84 km) |
| Regensburg to Isernhagen-Sud | 255.38 mi (411.00 km) |
| Regensburg to Ismaning | 57.74 mi (92.92 km) |
