| Western Springs to Idar-Oberstein | 4,305.38 mi (6,928.83 km) |
| Western Springs to Idstein | 4,321.85 mi (6,955.35 km) |
| Western Springs to Illertissen | 4,467.32 mi (7,189.46 km) |
| Western Springs to Illingen | 4,308.20 mi (6,933.38 km) |
| Western Springs to Ilmenau | 4,400.35 mi (7,081.68 km) |
| Western Springs to Ilsede | 4,312.70 mi (6,940.62 km) |
| Western Springs to Ilsenburg | 4,345.73 mi (6,993.78 km) |
| Western Springs to Ilsfeld | 4,403.21 mi (7,086.28 km) |
| Western Springs to Ilvesheim | 4,361.35 mi (7,018.92 km) |
| Western Springs to Immenstadt im Allgau | 4,498.37 mi (7,239.43 km) |
| Western Springs to Ingelheim | 4,323.13 mi (6,957.41 km) |
| Western Springs to Ingolstadt | 4,495.41 mi (7,234.67 km) |
| Western Springs to Iserlohn | 4,255.92 mi (6,849.23 km) |
| Western Springs to Isernhagen-Sud | 4,294.84 mi (6,911.87 km) |
| Western Springs to Ismaning | 4,526.36 mi (7,284.47 km) |
