| Santander to Imola | 773.83 mi (1,245.36 km) |
| Santander to Impruneta | 752.74 mi (1,211.42 km) |
| Santander to Induno Olona | 641.91 mi (1,033.05 km) |
| Santander to Inverigo | 658.75 mi (1,060.15 km) |
| Santander to Inveruno | 638.96 mi (1,028.31 km) |
| Santander to Inzago | 669.48 mi (1,077.43 km) |
| Santander to Iseo | 697.96 mi (1,123.25 km) |
| Santander to Isernia | 925.81 mi (1,489.94 km) |
| Santander to Isola Capo Rizzuto | 1,126.65 mi (1,813.16 km) |
| Santander to Isola del Liri | 891.11 mi (1,434.10 km) |
| Santander to Isola della Scala | 741.27 mi (1,192.96 km) |
| Santander to Isola Vicentina | 764.74 mi (1,230.73 km) |
| Santander to Ispica | 1,087.44 mi (1,750.07 km) |
| Santander to Istrana | 796.31 mi (1,281.54 km) |
| Santander to Itri | 896.04 mi (1,442.03 km) |
