| Horizon City to Idar-Oberstein | 5,497.31 mi (8,847.07 km) |
| Horizon City to Idstein | 5,509.52 mi (8,866.71 km) |
| Horizon City to Illertissen | 5,659.93 mi (9,108.77 km) |
| Horizon City to Illingen | 5,502.10 mi (8,854.77 km) |
| Horizon City to Ilmenau | 5,579.85 mi (8,979.91 km) |
| Horizon City to Ilsede | 5,485.84 mi (8,828.61 km) |
| Horizon City to Ilsenburg | 5,519.79 mi (8,883.24 km) |
| Horizon City to Ilsfeld | 5,594.03 mi (9,002.73 km) |
| Horizon City to Ilvesheim | 5,551.77 mi (8,934.71 km) |
| Horizon City to Immenstadt im Allgau | 5,693.35 mi (9,162.56 km) |
| Horizon City to Ingelheim | 5,512.38 mi (8,871.31 km) |
| Horizon City to Ingolstadt | 5,682.71 mi (9,145.44 km) |
| Horizon City to Iserlohn | 5,439.34 mi (8,753.77 km) |
| Horizon City to Isernhagen-Sud | 5,467.86 mi (8,799.68 km) |
| Horizon City to Ismaning | 5,715.43 mi (9,198.10 km) |
