| Merrillville to Idar-Oberstein | 4,299.15 mi (6,918.82 km) |
| Merrillville to Idstein | 4,316.19 mi (6,946.23 km) |
| Merrillville to Illertissen | 4,460.93 mi (7,179.18 km) |
| Merrillville to Illingen | 4,301.70 mi (6,922.92 km) |
| Merrillville to Ilmenau | 4,395.65 mi (7,074.11 km) |
| Merrillville to Ilsede | 4,308.77 mi (6,934.30 km) |
| Merrillville to Ilsenburg | 4,341.69 mi (6,987.27 km) |
| Merrillville to Ilsfeld | 4,397.08 mi (7,076.42 km) |
| Merrillville to Ilvesheim | 4,355.31 mi (7,009.19 km) |
| Merrillville to Immenstadt im Allgau | 4,491.64 mi (7,228.59 km) |
| Merrillville to Ingelheim | 4,317.26 mi (6,947.96 km) |
| Merrillville to Ingolstadt | 4,489.71 mi (7,225.49 km) |
| Merrillville to Iserlohn | 4,250.82 mi (6,841.03 km) |
| Merrillville to Isernhagen-Sud | 4,290.93 mi (6,905.59 km) |
| Merrillville to Ismaning | 4,520.41 mi (7,274.90 km) |
