| Castelletto sopra Ticino to Impruneta | 190.38 mi (306.39 km) |
| Castelletto sopra Ticino to Induno Olona | 13.33 mi (21.45 km) |
| Castelletto sopra Ticino to Inverigo | 28.16 mi (45.32 km) |
| Castelletto sopra Ticino to Inveruno | 17.34 mi (27.90 km) |
| Castelletto sopra Ticino to Inzago | 42.98 mi (69.17 km) |
| Castelletto sopra Ticino to Iseo | 68.67 mi (110.51 km) |
| Castelletto sopra Ticino to Isernia | 398.96 mi (642.07 km) |
| Castelletto sopra Ticino to Isola Capo Rizzuto | 635.53 mi (1,022.78 km) |
| Castelletto sopra Ticino to Isola del Liri | 372.27 mi (599.11 km) |
| Castelletto sopra Ticino to Isola della Scala | 119.22 mi (191.87 km) |
| Castelletto sopra Ticino to Isola Vicentina | 136.10 mi (219.03 km) |
| Castelletto sopra Ticino to Ispica | 697.28 mi (1,122.16 km) |
| Castelletto sopra Ticino to Istrana | 167.29 mi (269.23 km) |
| Castelletto sopra Ticino to Itri | 392.44 mi (631.58 km) |
| Castelletto sopra Ticino to Ittiri | 353.55 mi (568.98 km) |
