| Watertown Town to Imola | 3,976.67 mi (6,399.83 km) |
| Watertown Town to Impruneta | 3,979.60 mi (6,404.55 km) |
| Watertown Town to Induno Olona | 3,803.82 mi (6,121.65 km) |
| Watertown Town to Inverigo | 3,823.92 mi (6,154.01 km) |
| Watertown Town to Inveruno | 3,815.18 mi (6,139.93 km) |
| Watertown Town to Inzago | 3,841.76 mi (6,182.72 km) |
| Watertown Town to Iseo | 3,862.03 mi (6,215.34 km) |
| Watertown Town to Isernia | 4,183.90 mi (6,733.34 km) |
| Watertown Town to Isola Capo Rizzuto | 4,410.18 mi (7,097.50 km) |
| Watertown Town to Isola del Liri | 4,151.92 mi (6,681.87 km) |
| Watertown Town to Isola della Scala | 3,915.63 mi (6,301.59 km) |
| Watertown Town to Isola Vicentina | 3,922.15 mi (6,312.09 km) |
| Watertown Town to Ispica | 4,397.08 mi (7,076.42 km) |
| Watertown Town to Istrana | 3,947.93 mi (6,353.58 km) |
| Watertown Town to Itri | 4,164.69 mi (6,702.42 km) |
