| Tonawanda to Idar-Oberstein | 3,904.81 mi (6,284.18 km) |
| Tonawanda to Idstein | 3,925.02 mi (6,316.71 km) |
| Tonawanda to Illertissen | 4,065.32 mi (6,542.51 km) |
| Tonawanda to Illingen | 3,905.81 mi (6,285.80 km) |
| Tonawanda to Ilmenau | 4,010.03 mi (6,453.52 km) |
| Tonawanda to Ilsede | 3,928.16 mi (6,321.77 km) |
| Tonawanda to Ilsenburg | 3,960.24 mi (6,373.39 km) |
| Tonawanda to Ilsfeld | 4,003.13 mi (6,442.41 km) |
| Tonawanda to Ilvesheim | 3,961.86 mi (6,376.00 km) |
| Tonawanda to Immenstadt im Allgau | 4,094.07 mi (6,588.76 km) |
| Tonawanda to Ingelheim | 3,924.90 mi (6,316.51 km) |
| Tonawanda to Ingolstadt | 4,097.95 mi (6,595.01 km) |
| Tonawanda to Iserlohn | 3,863.16 mi (6,217.16 km) |
| Tonawanda to Isernhagen-Sud | 3,910.52 mi (6,293.37 km) |
| Tonawanda to Ismaning | 4,127.19 mi (6,642.07 km) |
