| Billings to Idar-Oberstein | 4,802.67 mi (7,729.16 km) |
| Billings to Idstein | 4,804.95 mi (7,732.82 km) |
| Billings to Illertissen | 4,963.07 mi (7,987.29 km) |
| Billings to Illingen | 4,812.02 mi (7,744.20 km) |
| Billings to Ilmenau | 4,856.92 mi (7,816.47 km) |
| Billings to Ilsede | 4,753.25 mi (7,649.61 km) |
| Billings to Ilsenburg | 4,788.05 mi (7,705.62 km) |
| Billings to Ilsfeld | 4,894.57 mi (7,877.05 km) |
| Billings to Ilvesheim | 4,852.35 mi (7,809.10 km) |
| Billings to Immenstadt im Allgau | 5,001.45 mi (8,049.06 km) |
| Billings to Ingelheim | 4,811.23 mi (7,742.93 km) |
| Billings to Ingolstadt | 4,973.35 mi (8,003.84 km) |
| Billings to Iserlohn | 4,727.47 mi (7,608.13 km) |
| Billings to Isernhagen-Sud | 4,735.48 mi (7,621.02 km) |
| Billings to Ismaning | 5,009.23 mi (8,061.57 km) |
