| Illescas to Idar-Oberstein | 856.55 mi (1,378.49 km) |
| Illescas to Idstein | 911.54 mi (1,466.99 km) |
| Illescas to Illertissen | 885.87 mi (1,425.67 km) |
| Illescas to Illingen | 831.74 mi (1,338.56 km) |
| Illescas to Ilmenau | 1,018.79 mi (1,639.59 km) |
| Illescas to Ilsede | 1,070.43 mi (1,722.69 km) |
| Illescas to Ilsenburg | 1,065.91 mi (1,715.41 km) |
| Illescas to Ilsfeld | 889.56 mi (1,431.61 km) |
| Illescas to Ilvesheim | 885.20 mi (1,424.60 km) |
| Illescas to Immenstadt im Allgau | 866.84 mi (1,395.04 km) |
| Illescas to Ingelheim | 892.68 mi (1,436.63 km) |
| Illescas to Ingolstadt | 957.94 mi (1,541.66 km) |
| Illescas to Iserlohn | 953.27 mi (1,534.14 km) |
| Illescas to Isernhagen-Sud | 1,069.41 mi (1,721.05 km) |
| Illescas to Ismaning | 948.11 mi (1,525.84 km) |
