| Marlborough to Idar-Oberstein | 3,640.20 mi (5,858.34 km) |
| Marlborough to Idstein | 3,664.61 mi (5,897.63 km) |
| Marlborough to Illertissen | 3,798.07 mi (6,112.41 km) |
| Marlborough to Illingen | 3,639.08 mi (5,856.53 km) |
| Marlborough to Ilmenau | 3,756.49 mi (6,045.49 km) |
| Marlborough to Ilsede | 3,681.69 mi (5,925.11 km) |
| Marlborough to Ilsenburg | 3,712.46 mi (5,974.63 km) |
| Marlborough to Ilsfeld | 3,738.47 mi (6,016.49 km) |
| Marlborough to Ilvesheim | 3,698.14 mi (5,951.59 km) |
| Marlborough to Immenstadt im Allgau | 3,823.97 mi (6,154.08 km) |
| Marlborough to Ingelheim | 3,662.86 mi (5,894.81 km) |
| Marlborough to Ingolstadt | 3,835.73 mi (6,173.02 km) |
| Marlborough to Iserlohn | 3,607.85 mi (5,806.28 km) |
| Marlborough to Isernhagen-Sud | 3,664.41 mi (5,897.30 km) |
| Marlborough to Ismaning | 3,862.85 mi (6,216.65 km) |
