| Colonia to Idar-Oberstein | 3,827.84 mi (6,160.32 km) |
| Colonia to Idstein | 3,852.35 mi (6,199.75 km) |
| Colonia to Illertissen | 3,985.61 mi (6,414.23 km) |
| Colonia to Illingen | 3,826.65 mi (6,158.41 km) |
| Colonia to Ilmenau | 3,944.27 mi (6,347.69 km) |
| Colonia to Ilsede | 3,869.40 mi (6,227.21 km) |
| Colonia to Ilsenburg | 3,900.20 mi (6,276.77 km) |
| Colonia to Ilsfeld | 3,926.11 mi (6,318.46 km) |
| Colonia to Ilvesheim | 3,885.80 mi (6,253.60 km) |
| Colonia to Immenstadt im Allgau | 4,011.39 mi (6,455.70 km) |
| Colonia to Ingelheim | 3,850.57 mi (6,196.89 km) |
| Colonia to Ingolstadt | 4,023.42 mi (6,475.07 km) |
| Colonia to Iserlohn | 3,795.63 mi (6,108.48 km) |
| Colonia to Isernhagen-Sud | 3,852.12 mi (6,199.38 km) |
| Colonia to Ismaning | 4,050.47 mi (6,518.61 km) |
