| Diamond Bar to Idar-Oberstein | 5,749.92 mi (9,253.61 km) |
| Diamond Bar to Idstein | 5,753.08 mi (9,258.68 km) |
| Diamond Bar to Illertissen | 5,910.75 mi (9,512.43 km) |
| Diamond Bar to Illingen | 5,758.82 mi (9,267.93 km) |
| Diamond Bar to Ilmenau | 5,806.20 mi (9,344.18 km) |
| Diamond Bar to Ilsede | 5,702.79 mi (9,177.75 km) |
| Diamond Bar to Ilsenburg | 5,737.58 mi (9,233.74 km) |
| Diamond Bar to Ilsfeld | 5,842.39 mi (9,402.41 km) |
| Diamond Bar to Ilvesheim | 5,800.11 mi (9,334.37 km) |
| Diamond Bar to Immenstadt im Allgau | 5,948.72 mi (9,573.54 km) |
| Diamond Bar to Ingelheim | 5,759.09 mi (9,268.35 km) |
| Diamond Bar to Ingolstadt | 5,922.00 mi (9,530.54 km) |
| Diamond Bar to Iserlohn | 5,676.04 mi (9,134.71 km) |
| Diamond Bar to Isernhagen-Sud | 5,685.01 mi (9,149.13 km) |
| Diamond Bar to Ismaning | 5,957.70 mi (9,587.99 km) |
