| Sun Prairie to Redondela | 3,920.83 mi (6,309.96 km) |
| Sun Prairie to Reinosa | 4,089.19 mi (6,580.91 km) |
| Sun Prairie to Requena | 4,355.17 mi (7,008.96 km) |
| Sun Prairie to Reus | 4,383.67 mi (7,054.83 km) |
| Sun Prairie to Rianxo | 3,899.19 mi (6,275.13 km) |
| Sun Prairie to Ribadeo | 3,945.44 mi (6,349.57 km) |
| Sun Prairie to Rincon de la Victoria | 4,323.67 mi (6,958.28 km) |
| Sun Prairie to Ripoll | 4,387.25 mi (7,060.60 km) |
| Sun Prairie to Ripollet | 4,414.19 mi (7,103.95 km) |
| Sun Prairie to Rojales | 4,427.82 mi (7,125.89 km) |
| Sun Prairie to Ronda | 4,282.84 mi (6,892.57 km) |
| Sun Prairie to Roquetas de Mar | 4,397.10 mi (7,076.45 km) |
| Sun Prairie to Rosas | 4,425.67 mi (7,122.43 km) |
| Sun Prairie to Rubi | 4,409.09 mi (7,095.74 km) |
| Sun Prairie to Rute | 4,296.16 mi (6,914.00 km) |
