| Portales to Idar-Oberstein | 5,260.36 mi (8,465.73 km) |
| Portales to Idstein | 5,272.93 mi (8,485.96 km) |
| Portales to Illertissen | 5,422.96 mi (8,727.41 km) |
| Portales to Illingen | 5,264.99 mi (8,473.19 km) |
| Portales to Ilmenau | 5,344.03 mi (8,600.39 km) |
| Portales to Ilsede | 5,250.61 mi (8,450.04 km) |
| Portales to Ilsenburg | 5,284.48 mi (8,504.55 km) |
| Portales to Ilsfeld | 5,357.20 mi (8,621.58 km) |
| Portales to Ilvesheim | 5,314.96 mi (8,553.60 km) |
| Portales to Immenstadt im Allgau | 5,456.20 mi (8,780.90 km) |
| Portales to Ingelheim | 5,275.65 mi (8,490.34 km) |
| Portales to Ingolstadt | 5,446.20 mi (8,764.81 km) |
| Portales to Iserlohn | 5,203.10 mi (8,373.58 km) |
| Portales to Isernhagen-Sud | 5,232.64 mi (8,421.11 km) |
| Portales to Ismaning | 5,478.77 mi (8,817.23 km) |
