| Highgate to Idar-Oberstein | 350.95 mi (564.80 km) |
| Highgate to Idstein | 378.34 mi (608.88 km) |
| Highgate to Illertissen | 510.25 mi (821.17 km) |
| Highgate to Illingen | 350.75 mi (564.47 km) |
| Highgate to Ilmenau | 483.19 mi (777.63 km) |
| Highgate to Ilsede | 442.36 mi (711.91 km) |
| Highgate to Ilsenburg | 463.51 mi (745.95 km) |
| Highgate to Ilsfeld | 449.25 mi (722.99 km) |
| Highgate to Ilvesheim | 408.96 mi (658.16 km) |
| Highgate to Immenstadt im Allgau | 539.76 mi (868.66 km) |
| Highgate to Ingelheim | 374.71 mi (603.04 km) |
| Highgate to Ingolstadt | 546.85 mi (880.07 km) |
| Highgate to Iserlohn | 336.24 mi (541.13 km) |
| Highgate to Isernhagen-Sud | 429.24 mi (690.79 km) |
| Highgate to Ismaning | 573.62 mi (923.16 km) |
