| Mount Prospect to Idar-Oberstein | 4,294.35 mi (6,911.09 km) |
| Mount Prospect to Idstein | 4,310.61 mi (6,937.26 km) |
| Mount Prospect to Illertissen | 4,456.36 mi (7,171.81 km) |
| Mount Prospect to Illingen | 4,297.28 mi (6,915.80 km) |
| Mount Prospect to Ilmenau | 4,388.74 mi (7,062.99 km) |
| Mount Prospect to Ilsede | 4,300.80 mi (6,921.48 km) |
| Mount Prospect to Ilsenburg | 4,333.88 mi (6,974.71 km) |
| Mount Prospect to Ilsfeld | 4,392.14 mi (7,068.46 km) |
| Mount Prospect to Ilvesheim | 4,350.26 mi (7,001.06 km) |
| Mount Prospect to Immenstadt im Allgau | 4,487.54 mi (7,222.00 km) |
| Mount Prospect to Ingelheim | 4,311.97 mi (6,939.45 km) |
| Mount Prospect to Ingolstadt | 4,484.18 mi (7,216.59 km) |
| Mount Prospect to Iserlohn | 4,244.46 mi (6,830.80 km) |
| Mount Prospect to Isernhagen-Sud | 4,282.93 mi (6,892.71 km) |
| Mount Prospect to Ismaning | 4,515.22 mi (7,266.54 km) |
