| Donaueschingen to Impruneta | 323.25 mi (520.22 km) |
| Donaueschingen to Induno Olona | 146.14 mi (235.19 km) |
| Donaueschingen to Inverigo | 157.03 mi (252.72 km) |
| Donaueschingen to Inveruno | 169.14 mi (272.20 km) |
| Donaueschingen to Inzago | 173.51 mi (279.23 km) |
| Donaueschingen to Iseo | 174.66 mi (281.08 km) |
| Donaueschingen to Isernia | 520.88 mi (838.27 km) |
| Donaueschingen to Isola Capo Rizzuto | 755.20 mi (1,215.38 km) |
| Donaueschingen to Isola del Liri | 499.37 mi (803.66 km) |
| Donaueschingen to Isola della Scala | 220.31 mi (354.56 km) |
| Donaueschingen to Isola Vicentina | 212.38 mi (341.80 km) |
| Donaueschingen to Ispica | 837.26 mi (1,347.44 km) |
| Donaueschingen to Istrana | 231.29 mi (372.22 km) |
| Donaueschingen to Itri | 522.76 mi (841.30 km) |
| Donaueschingen to Ittiri | 508.06 mi (817.64 km) |
