| Sun Prairie to Indianapolis (Indiana) | 284.47 mi (457.81 km) |
| Sun Prairie to Indianola (Iowa) | 254.49 mi (409.56 km) |
| Sun Prairie to Indio (California) | 1,590.72 mi (2,560.01 km) |
| Sun Prairie to Inglewood (California) | 1,685.95 mi (2,713.27 km) |
| Sun Prairie to Inkster (Michigan) | 306.63 mi (493.48 km) |
| Sun Prairie to Inver Grove Heights (Minnesota) | 221.28 mi (356.12 km) |
| Sun Prairie to Inwood (New York) | 814.49 mi (1,310.79 km) |
| Sun Prairie to Iona (Florida) | 1,221.98 mi (1,966.58 km) |
| Sun Prairie to Ionia (Michigan) | 210.57 mi (338.88 km) |
| Sun Prairie to Iowa City (Iowa) | 157.53 mi (253.51 km) |
| Sun Prairie to Irmo (South Carolina) | 762.01 mi (1,226.34 km) |
| Sun Prairie to Irondale (Alabama) | 680.33 mi (1,094.88 km) |
| Sun Prairie to Ironton (Ohio) | 469.50 mi (755.58 km) |
| Sun Prairie to Irvine (California) | 1,667.94 mi (2,684.29 km) |
| Sun Prairie to Irving (Texas) | 827.40 mi (1,331.58 km) |
