| Horstel to Impruneta | 618.60 mi (995.54 km) |
| Horstel to Induno Olona | 449.00 mi (722.60 km) |
| Horstel to Inverigo | 459.47 mi (739.44 km) |
| Horstel to Inveruno | 471.97 mi (759.56 km) |
| Horstel to Inzago | 475.17 mi (764.71 km) |
| Horstel to Iseo | 472.06 mi (759.71 km) |
| Horstel to Isernia | 801.96 mi (1,290.63 km) |
| Horstel to Isola Capo Rizzuto | 1,027.74 mi (1,653.98 km) |
| Horstel to Isola del Liri | 785.34 mi (1,263.88 km) |
| Horstel to Isola della Scala | 509.85 mi (820.53 km) |
| Horstel to Isola Vicentina | 492.48 mi (792.57 km) |
| Horstel to Ispica | 1,129.39 mi (1,817.58 km) |
| Horstel to Istrana | 500.47 mi (805.42 km) |
| Horstel to Itri | 810.64 mi (1,304.60 km) |
| Horstel to Ittiri | 809.52 mi (1,302.80 km) |
