| Boise to Idar-Oberstein | 5,147.25 mi (8,283.69 km) |
| Boise to Idstein | 5,146.33 mi (8,282.21 km) |
| Boise to Illertissen | 5,305.85 mi (8,538.94 km) |
| Boise to Illingen | 5,157.95 mi (8,300.92 km) |
| Boise to Ilmenau | 5,191.72 mi (8,355.26 km) |
| Boise to Ilsede | 5,085.34 mi (8,184.06 km) |
| Boise to Ilsenburg | 5,120.19 mi (8,240.16 km) |
| Boise to Ilsfeld | 5,236.98 mi (8,428.10 km) |
| Boise to Ilvesheim | 5,195.06 mi (8,360.64 km) |
| Boise to Immenstadt im Allgau | 5,345.54 mi (8,602.81 km) |
| Boise to Ingelheim | 5,153.67 mi (8,294.04 km) |
| Boise to Ingolstadt | 5,311.98 mi (8,548.80 km) |
| Boise to Iserlohn | 5,066.98 mi (8,154.51 km) |
| Boise to Isernhagen-Sud | 5,067.78 mi (8,155.80 km) |
| Boise to Ismaning | 5,348.65 mi (8,607.82 km) |
