| Northbrook to Idar-Oberstein | 4,287.45 mi (6,899.98 km) |
| Northbrook to Idstein | 4,303.72 mi (6,926.16 km) |
| Northbrook to Illertissen | 4,449.45 mi (7,160.70 km) |
| Northbrook to Illingen | 4,290.38 mi (6,904.69 km) |
| Northbrook to Ilmenau | 4,381.86 mi (7,051.91 km) |
| Northbrook to Ilsede | 4,293.93 mi (6,910.42 km) |
| Northbrook to Ilsenburg | 4,327.01 mi (6,963.65 km) |
| Northbrook to Ilsfeld | 4,385.24 mi (7,057.36 km) |
| Northbrook to Ilvesheim | 4,343.35 mi (6,989.95 km) |
| Northbrook to Immenstadt im Allgau | 4,480.63 mi (7,210.88 km) |
| Northbrook to Ingelheim | 4,305.07 mi (6,928.34 km) |
| Northbrook to Ingolstadt | 4,477.28 mi (7,205.49 km) |
| Northbrook to Iserlohn | 4,237.57 mi (6,819.71 km) |
| Northbrook to Isernhagen-Sud | 4,276.06 mi (6,881.66 km) |
| Northbrook to Ismaning | 4,508.32 mi (7,255.44 km) |
