| Santo Tirso to Imola | 1,040.65 mi (1,674.76 km) |
| Santo Tirso to Impruneta | 1,014.80 mi (1,633.17 km) |
| Santo Tirso to Induno Olona | 918.00 mi (1,477.38 km) |
| Santo Tirso to Inverigo | 934.15 mi (1,503.36 km) |
| Santo Tirso to Inveruno | 913.61 mi (1,470.31 km) |
| Santo Tirso to Inzago | 943.84 mi (1,518.97 km) |
| Santo Tirso to Iseo | 972.58 mi (1,565.22 km) |
| Santo Tirso to Isernia | 1,172.33 mi (1,886.68 km) |
| Santo Tirso to Isola Capo Rizzuto | 1,355.04 mi (2,180.72 km) |
| Santo Tirso to Isola del Liri | 1,137.52 mi (1,830.66 km) |
| Santo Tirso to Isola della Scala | 1,013.61 mi (1,631.25 km) |
| Santo Tirso to Isola Vicentina | 1,038.61 mi (1,671.48 km) |
| Santo Tirso to Ispica | 1,288.14 mi (2,073.06 km) |
| Santo Tirso to Istrana | 1,070.15 mi (1,722.23 km) |
| Santo Tirso to Itri | 1,138.74 mi (1,832.63 km) |
