| Sun Prairie to Mattoon (Illinois) | 259.98 mi (418.39 km) |
| Sun Prairie to Mauldin (South Carolina) | 689.01 mi (1,108.85 km) |
| Sun Prairie to Maumee (Ohio) | 305.41 mi (491.51 km) |
| Sun Prairie to Maumelle (Arkansas) | 599.98 mi (965.57 km) |
| Sun Prairie to Mayagüez (Puerto Rico) | 2,154.20 mi (3,466.85 km) |
| Sun Prairie to Mayfield Heights (Ohio) | 413.55 mi (665.55 km) |
| Sun Prairie to Mays Chapel (Maryland) | 701.73 mi (1,129.32 km) |
| Sun Prairie to Maywood (California) | 1,677.11 mi (2,699.04 km) |
| Sun Prairie to Maywood (Illinois) | 114.56 mi (184.36 km) |
| Sun Prairie to McAlester (Oklahoma) | 669.18 mi (1,076.94 km) |
| Sun Prairie to McAllen (Texas) | 1,276.64 mi (2,054.56 km) |
| Sun Prairie to McCalla (Alabama) | 693.00 mi (1,115.27 km) |
| Sun Prairie to McComb (Mississippi) | 827.63 mi (1,331.93 km) |
| Sun Prairie to McDonough (Georgia) | 727.06 mi (1,170.10 km) |
| Sun Prairie to McFarland (California) | 1,672.70 mi (2,691.96 km) |
