| Sun Prairie to Reedley (California) | 1,654.83 mi (2,663.20 km) |
| Sun Prairie to Reidsville (North Carolina) | 693.19 mi (1,115.58 km) |
| Sun Prairie to Reisterstown (Maryland) | 693.30 mi (1,115.76 km) |
| Sun Prairie to Rendon (Texas) | 851.70 mi (1,370.67 km) |
| Sun Prairie to Reno (Nevada) | 1,597.96 mi (2,571.67 km) |
| Sun Prairie to Renton (Washington) | 1,615.43 mi (2,599.78 km) |
| Sun Prairie to Republic (Missouri) | 472.47 mi (760.37 km) |
| Sun Prairie to Reston (Virginia) | 684.11 mi (1,100.97 km) |
| Sun Prairie to Revere (Massachusetts) | 923.96 mi (1,486.97 km) |
| Sun Prairie to Rexburg (Idaho) | 1,127.77 mi (1,814.97 km) |
| Sun Prairie to Reynoldsburg (Ohio) | 400.43 mi (644.43 km) |
| Sun Prairie to Rialto (California) | 1,633.30 mi (2,628.54 km) |
| Sun Prairie to Richardson (Texas) | 813.39 mi (1,309.03 km) |
| Sun Prairie to Richfield (Minnesota) | 232.57 mi (374.29 km) |
| Sun Prairie to Richfield (Wisconsin) | 50.24 mi (80.86 km) |
