| Horizon West to Imola | 5,026.99 mi (8,090.16 km) |
| Horizon West to Impruneta | 5,023.96 mi (8,085.28 km) |
| Horizon West to Induno Olona | 4,857.91 mi (7,818.05 km) |
| Horizon West to Inverigo | 4,878.04 mi (7,850.45 km) |
| Horizon West to Inveruno | 4,866.92 mi (7,832.55 km) |
| Horizon West to Inzago | 4,895.07 mi (7,877.86 km) |
| Horizon West to Iseo | 4,917.51 mi (7,913.97 km) |
| Horizon West to Isernia | 5,221.55 mi (8,403.27 km) |
| Horizon West to Isola Capo Rizzuto | 5,437.78 mi (8,751.25 km) |
| Horizon West to Isola del Liri | 5,188.14 mi (8,349.50 km) |
| Horizon West to Isola della Scala | 4,970.61 mi (7,999.43 km) |
| Horizon West to Isola Vicentina | 4,980.61 mi (8,015.52 km) |
| Horizon West to Ispica | 5,399.92 mi (8,690.33 km) |
| Horizon West to Istrana | 5,008.20 mi (8,059.91 km) |
| Horizon West to Itri | 5,197.87 mi (8,365.17 km) |
