| Willimantic to Idar-Oberstein | 3,693.83 mi (5,944.64 km) |
| Willimantic to Idstein | 3,718.45 mi (5,984.27 km) |
| Willimantic to Illertissen | 3,851.52 mi (6,198.43 km) |
| Willimantic to Illingen | 3,692.59 mi (5,942.64 km) |
| Willimantic to Ilmenau | 3,810.63 mi (6,132.62 km) |
| Willimantic to Ilsede | 3,736.13 mi (6,012.72 km) |
| Willimantic to Ilsenburg | 3,766.85 mi (6,062.16 km) |
| Willimantic to Ilsfeld | 3,792.08 mi (6,102.76 km) |
| Willimantic to Ilvesheim | 3,751.81 mi (6,037.95 km) |
| Willimantic to Immenstadt im Allgau | 3,877.25 mi (6,239.82 km) |
| Willimantic to Ingelheim | 3,716.62 mi (5,981.32 km) |
| Willimantic to Ingolstadt | 3,889.45 mi (6,259.46 km) |
| Willimantic to Iserlohn | 3,661.94 mi (5,893.33 km) |
| Willimantic to Isernhagen-Sud | 3,718.87 mi (5,984.94 km) |
| Willimantic to Ismaning | 3,916.45 mi (6,302.91 km) |
