| Castel Bolognese to Idar-Oberstein | 428.31 mi (689.31 km) |
| Castel Bolognese to Idstein | 440.01 mi (708.13 km) |
| Castel Bolognese to Illertissen | 281.64 mi (453.26 km) |
| Castel Bolognese to Illingen | 415.20 mi (668.19 km) |
| Castel Bolognese to Ilmenau | 441.84 mi (711.07 km) |
| Castel Bolognese to Ilsede | 554.26 mi (891.99 km) |
| Castel Bolognese to Ilsenburg | 524.18 mi (843.58 km) |
| Castel Bolognese to Ilsfeld | 348.61 mi (561.03 km) |
| Castel Bolognese to Ilvesheim | 387.45 mi (623.55 km) |
| Castel Bolognese to Immenstadt im Allgau | 237.07 mi (381.54 km) |
| Castel Bolognese to Ingelheim | 428.55 mi (689.69 km) |
| Castel Bolognese to Ingolstadt | 307.73 mi (495.25 km) |
| Castel Bolognese to Iserlohn | 524.30 mi (843.79 km) |
| Castel Bolognese to Isernhagen-Sud | 567.85 mi (913.87 km) |
| Castel Bolognese to Ismaning | 270.20 mi (434.85 km) |
