| Glen Ellyn to Idar-Oberstein | 4,308.40 mi (6,933.70 km) |
| Glen Ellyn to Idstein | 4,324.74 mi (6,960.00 km) |
| Glen Ellyn to Illertissen | 4,470.38 mi (7,194.39 km) |
| Glen Ellyn to Illingen | 4,311.29 mi (6,938.35 km) |
| Glen Ellyn to Ilmenau | 4,403.00 mi (7,085.95 km) |
| Glen Ellyn to Ilsede | 4,315.17 mi (6,944.59 km) |
| Glen Ellyn to Ilsenburg | 4,348.23 mi (6,997.80 km) |
| Glen Ellyn to Ilsfeld | 4,406.20 mi (7,091.10 km) |
| Glen Ellyn to Ilvesheim | 4,364.33 mi (7,023.71 km) |
| Glen Ellyn to Immenstadt im Allgau | 4,501.51 mi (7,244.49 km) |
| Glen Ellyn to Ingelheim | 4,326.07 mi (6,962.14 km) |
| Glen Ellyn to Ingolstadt | 4,498.31 mi (7,239.32 km) |
| Glen Ellyn to Iserlohn | 4,258.67 mi (6,853.66 km) |
| Glen Ellyn to Isernhagen-Sud | 4,297.30 mi (6,915.83 km) |
| Glen Ellyn to Ismaning | 4,529.31 mi (7,289.22 km) |
