| Wattwil to Imola | 239.53 mi (385.49 km) |
| Wattwil to Impruneta | 270.74 mi (435.71 km) |
| Wattwil to Induno Olona | 100.59 mi (161.88 km) |
| Wattwil to Inverigo | 108.14 mi (174.03 km) |
| Wattwil to Inveruno | 123.42 mi (198.62 km) |
| Wattwil to Inzago | 123.25 mi (198.36 km) |
| Wattwil to Iseo | 122.17 mi (196.62 km) |
| Wattwil to Isernia | 468.17 mi (753.44 km) |
| Wattwil to Isola Capo Rizzuto | 702.77 mi (1,130.99 km) |
| Wattwil to Isola del Liri | 446.54 mi (718.63 km) |
| Wattwil to Isola della Scala | 167.55 mi (269.65 km) |
| Wattwil to Isola Vicentina | 160.87 mi (258.89 km) |
| Wattwil to Ispica | 784.71 mi (1,262.87 km) |
| Wattwil to Istrana | 181.66 mi (292.35 km) |
| Wattwil to Itri | 469.93 mi (756.28 km) |
