| Altdorf to Imola | 228.75 mi (368.14 km) |
| Altdorf to Impruneta | 254.06 mi (408.87 km) |
| Altdorf to Induno Olona | 70.89 mi (114.09 km) |
| Altdorf to Inverigo | 83.11 mi (133.76 km) |
| Altdorf to Inveruno | 93.85 mi (151.04 km) |
| Altdorf to Inzago | 100.70 mi (162.06 km) |
| Altdorf to Iseo | 107.56 mi (173.10 km) |
| Altdorf to Isernia | 457.24 mi (735.86 km) |
| Altdorf to Isola Capo Rizzuto | 693.32 mi (1,115.80 km) |
| Altdorf to Isola del Liri | 433.59 mi (697.79 km) |
| Altdorf to Isola della Scala | 158.64 mi (255.31 km) |
| Altdorf to Isola Vicentina | 159.28 mi (256.33 km) |
| Altdorf to Ispica | 767.16 mi (1,234.62 km) |
| Altdorf to Istrana | 184.63 mi (297.13 km) |
| Altdorf to Itri | 455.84 mi (733.60 km) |
