| North Tonawanda to Idar-Oberstein | 3,902.70 mi (6,280.79 km) |
| North Tonawanda to Idstein | 3,922.89 mi (6,313.28 km) |
| North Tonawanda to Illertissen | 4,063.22 mi (6,539.13 km) |
| North Tonawanda to Illingen | 3,903.71 mi (6,282.42 km) |
| North Tonawanda to Ilmenau | 4,007.86 mi (6,450.03 km) |
| North Tonawanda to Ilsede | 3,925.97 mi (6,318.23 km) |
| North Tonawanda to Ilsenburg | 3,958.05 mi (6,369.86 km) |
| North Tonawanda to Ilsfeld | 4,001.01 mi (6,439.01 km) |
| North Tonawanda to Ilvesheim | 3,959.74 mi (6,372.59 km) |
| North Tonawanda to Immenstadt im Allgau | 4,091.98 mi (6,585.41 km) |
| North Tonawanda to Ingelheim | 3,922.77 mi (6,313.09 km) |
| North Tonawanda to Ingolstadt | 4,095.82 mi (6,591.59 km) |
| North Tonawanda to Iserlohn | 3,861.01 mi (6,213.69 km) |
| North Tonawanda to Isernhagen-Sud | 3,908.32 mi (6,289.83 km) |
| North Tonawanda to Ismaning | 4,125.08 mi (6,638.67 km) |
