| Mattoon to Idar-Oberstein | 4,434.14 mi (7,136.06 km) |
| Mattoon to Idstein | 4,452.07 mi (7,164.92 km) |
| Mattoon to Illertissen | 4,595.61 mi (7,395.91 km) |
| Mattoon to Illingen | 4,436.23 mi (7,139.43 km) |
| Mattoon to Ilmenau | 4,533.00 mi (7,295.16 km) |
| Mattoon to Ilsede | 4,447.27 mi (7,157.18 km) |
| Mattoon to Ilsenburg | 4,480.00 mi (7,209.87 km) |
| Mattoon to Ilsfeld | 4,532.22 mi (7,293.90 km) |
| Mattoon to Ilvesheim | 4,490.57 mi (7,226.87 km) |
| Mattoon to Immenstadt im Allgau | 4,625.73 mi (7,444.39 km) |
| Mattoon to Ingelheim | 4,452.82 mi (7,166.12 km) |
| Mattoon to Ingolstadt | 4,625.49 mi (7,444.01 km) |
| Mattoon to Iserlohn | 4,387.60 mi (7,061.17 km) |
| Mattoon to Isernhagen-Sud | 4,429.46 mi (7,128.53 km) |
| Mattoon to Ismaning | 4,655.80 mi (7,492.79 km) |
