| Thun to Imola | 258.38 mi (415.83 km) |
| Thun to Impruneta | 276.28 mi (444.62 km) |
| Thun to Induno Olona | 85.39 mi (137.42 km) |
| Thun to Inverigo | 104.02 mi (167.41 km) |
| Thun to Inveruno | 104.17 mi (167.64 km) |
| Thun to Inzago | 122.89 mi (197.77 km) |
| Thun to Iseo | 138.74 mi (223.29 km) |
| Thun to Isernia | 483.84 mi (778.67 km) |
| Thun to Isola Capo Rizzuto | 720.52 mi (1,159.57 km) |
| Thun to Isola del Liri | 458.02 mi (737.12 km) |
| Thun to Isola della Scala | 192.24 mi (309.38 km) |
| Thun to Isola Vicentina | 198.59 mi (319.59 km) |
| Thun to Ispica | 784.04 mi (1,261.79 km) |
| Thun to Istrana | 226.21 mi (364.06 km) |
| Thun to Itri | 478.72 mi (770.42 km) |
