| Donostia to Imola | 685.43 mi (1,103.09 km) |
| Donostia to Impruneta | 662.82 mi (1,066.71 km) |
| Donostia to Induno Olona | 559.56 mi (900.52 km) |
| Donostia to Inverigo | 575.62 mi (926.37 km) |
| Donostia to Inveruno | 555.09 mi (893.34 km) |
| Donostia to Inzago | 585.36 mi (942.05 km) |
| Donostia to Iseo | 614.08 mi (988.26 km) |
| Donostia to Isernia | 833.87 mi (1,341.98 km) |
| Donostia to Isola Capo Rizzuto | 1,034.66 mi (1,665.12 km) |
| Donostia to Isola del Liri | 799.15 mi (1,286.11 km) |
| Donostia to Isola della Scala | 655.63 mi (1,055.14 km) |
| Donostia to Isola Vicentina | 680.23 mi (1,094.72 km) |
| Donostia to Ispica | 997.95 mi (1,606.04 km) |
| Donostia to Istrana | 711.79 mi (1,145.51 km) |
| Donostia to Itri | 803.93 mi (1,293.80 km) |
