| Trondheim to Imola | 1,319.10 mi (2,122.88 km) |
| Trondheim to Impruneta | 1,364.77 mi (2,196.38 km) |
| Trondheim to Induno Olona | 1,216.15 mi (1,957.21 km) |
| Trondheim to Inverigo | 1,223.56 mi (1,969.13 km) |
| Trondheim to Inveruno | 1,239.13 mi (1,994.19 km) |
| Trondheim to Inzago | 1,237.03 mi (1,990.81 km) |
| Trondheim to Iseo | 1,227.94 mi (1,976.17 km) |
| Trondheim to Isernia | 1,516.09 mi (2,439.92 km) |
| Trondheim to Isola Capo Rizzuto | 1,713.34 mi (2,757.36 km) |
| Trondheim to Isola del Liri | 1,508.28 mi (2,427.35 km) |
| Trondheim to Isola della Scala | 1,255.00 mi (2,019.73 km) |
| Trondheim to Isola Vicentina | 1,230.30 mi (1,979.98 km) |
| Trondheim to Ispica | 1,850.84 mi (2,978.64 km) |
| Trondheim to Istrana | 1,227.96 mi (1,976.21 km) |
| Trondheim to Itri | 1,535.46 mi (2,471.08 km) |
