| Madrid to Idar-Oberstein | 835.73 mi (1,344.98 km) |
| Madrid to Idstein | 890.76 mi (1,433.55 km) |
| Madrid to Illertissen | 866.64 mi (1,394.72 km) |
| Madrid to Illingen | 810.98 mi (1,305.15 km) |
| Madrid to Ilmenau | 998.44 mi (1,606.84 km) |
| Madrid to Ilsede | 1,049.39 mi (1,688.83 km) |
| Madrid to Ilsenburg | 1,045.07 mi (1,681.88 km) |
| Madrid to Ilsfeld | 869.57 mi (1,399.44 km) |
| Madrid to Ilvesheim | 864.81 mi (1,391.78 km) |
| Madrid to Immenstadt im Allgau | 848.13 mi (1,364.93 km) |
| Madrid to Ingelheim | 871.94 mi (1,403.25 km) |
| Madrid to Ingolstadt | 938.73 mi (1,510.75 km) |
| Madrid to Iserlohn | 932.02 mi (1,499.94 km) |
| Madrid to Isernhagen-Sud | 1,048.28 mi (1,687.04 km) |
| Madrid to Ismaning | 929.34 mi (1,495.63 km) |
