| Greenbelt to Idar-Oberstein | 4,003.45 mi (6,442.92 km) |
| Greenbelt to Idstein | 4,027.89 mi (6,482.26 km) |
| Greenbelt to Illertissen | 4,161.24 mi (6,696.86 km) |
| Greenbelt to Illingen | 4,002.27 mi (6,441.03 km) |
| Greenbelt to Ilmenau | 4,119.64 mi (6,629.92 km) |
| Greenbelt to Ilsede | 4,044.47 mi (6,508.95 km) |
| Greenbelt to Ilsenburg | 4,075.34 mi (6,558.62 km) |
| Greenbelt to Ilsfeld | 4,101.71 mi (6,601.07 km) |
| Greenbelt to Ilvesheim | 4,061.40 mi (6,536.19 km) |
| Greenbelt to Immenstadt im Allgau | 4,187.00 mi (6,738.33 km) |
| Greenbelt to Ingelheim | 4,026.14 mi (6,479.44 km) |
| Greenbelt to Ingolstadt | 4,199.00 mi (6,757.64 km) |
| Greenbelt to Iserlohn | 3,971.04 mi (6,390.78 km) |
| Greenbelt to Isernhagen-Sud | 4,027.16 mi (6,481.10 km) |
| Greenbelt to Ismaning | 4,226.08 mi (6,801.22 km) |
