| Williamstown to Indianapolis (Indiana) | 593.02 mi (954.38 km) |
| Williamstown to Indianola (Iowa) | 981.08 mi (1,578.90 km) |
| Williamstown to Indio (California) | 2,301.22 mi (3,703.46 km) |
| Williamstown to Inglewood (California) | 2,407.32 mi (3,874.20 km) |
| Williamstown to Inkster (Michigan) | 470.31 mi (756.88 km) |
| Williamstown to Inver Grove Heights (Minnesota) | 987.80 mi (1,589.71 km) |
| Williamstown to Inwood (New York) | 91.51 mi (147.27 km) |
| Williamstown to Iona (Florida) | 994.88 mi (1,601.10 km) |
| Williamstown to Ionia (Michigan) | 570.41 mi (917.99 km) |
| Williamstown to Iowa City (Iowa) | 876.57 mi (1,410.71 km) |
| Williamstown to Irmo (South Carolina) | 516.39 mi (831.05 km) |
| Williamstown to Irondale (Alabama) | 773.51 mi (1,244.84 km) |
| Williamstown to Ironton (Ohio) | 420.28 mi (676.37 km) |
| Williamstown to Irvine (California) | 2,384.44 mi (3,837.39 km) |
| Williamstown to Irving (Texas) | 1,308.49 mi (2,105.80 km) |
