| Union to Idar-Oberstein | 4,584.72 mi (7,378.39 km) |
| Union to Idstein | 4,601.92 mi (7,406.08 km) |
| Union to Illertissen | 4,746.44 mi (7,638.65 km) |
| Union to Illingen | 4,587.17 mi (7,382.33 km) |
| Union to Ilmenau | 4,681.52 mi (7,534.17 km) |
| Union to Ilsede | 4,594.62 mi (7,394.32 km) |
| Union to Ilsenburg | 4,627.54 mi (7,447.31 km) |
| Union to Ilsfeld | 4,682.69 mi (7,536.06 km) |
| Union to Ilvesheim | 4,640.93 mi (7,468.86 km) |
| Union to Immenstadt im Allgau | 4,777.00 mi (7,687.83 km) |
| Union to Ingelheim | 4,602.94 mi (7,407.72 km) |
| Union to Ingolstadt | 4,775.43 mi (7,685.31 km) |
| Union to Iserlohn | 4,536.65 mi (7,301.04 km) |
| Union to Isernhagen-Sud | 4,576.77 mi (7,365.61 km) |
| Union to Ismaning | 4,806.06 mi (7,734.61 km) |
