| Tallaght to Idar-Oberstein | 636.52 mi (1,024.38 km) |
| Tallaght to Idstein | 659.32 mi (1,061.07 km) |
| Tallaght to Illertissen | 797.06 mi (1,282.75 km) |
| Tallaght to Illingen | 637.58 mi (1,026.08 km) |
| Tallaght to Ilmenau | 754.80 mi (1,214.73 km) |
| Tallaght to Ilsede | 693.34 mi (1,115.82 km) |
| Tallaght to Ilsenburg | 720.43 mi (1,159.42 km) |
| Tallaght to Ilsfeld | 734.88 mi (1,182.68 km) |
| Tallaght to Ilvesheim | 693.87 mi (1,116.68 km) |
| Tallaght to Immenstadt im Allgau | 826.98 mi (1,330.90 km) |
| Tallaght to Ingelheim | 657.79 mi (1,058.62 km) |
| Tallaght to Ingolstadt | 830.85 mi (1,337.13 km) |
| Tallaght to Iserlohn | 605.45 mi (974.39 km) |
| Tallaght to Isernhagen-Sud | 677.48 mi (1,090.30 km) |
| Tallaght to Ismaning | 859.11 mi (1,382.60 km) |