| Tonawanda to Imola | 4,274.99 mi (6,879.93 km) |
| Tonawanda to Impruneta | 4,281.75 mi (6,890.81 km) |
| Tonawanda to Induno Olona | 4,100.83 mi (6,599.65 km) |
| Tonawanda to Inverigo | 4,120.77 mi (6,631.74 km) |
| Tonawanda to Inveruno | 4,113.71 mi (6,620.37 km) |
| Tonawanda to Inzago | 4,139.04 mi (6,661.14 km) |
| Tonawanda to Iseo | 4,157.65 mi (6,691.10 km) |
| Tonawanda to Isernia | 4,488.75 mi (7,223.94 km) |
| Tonawanda to Isola Capo Rizzuto | 4,719.27 mi (7,594.93 km) |
| Tonawanda to Isola del Liri | 4,457.82 mi (7,174.17 km) |
| Tonawanda to Isola della Scala | 4,211.21 mi (6,777.29 km) |
| Tonawanda to Isola Vicentina | 4,215.22 mi (6,783.74 km) |
| Tonawanda to Ispica | 4,718.68 mi (7,593.97 km) |
| Tonawanda to Istrana | 4,239.51 mi (6,822.83 km) |
| Tonawanda to Itri | 4,472.27 mi (7,197.42 km) |
