| Riverdale to Ruislip | 4,202.64 mi (6,763.50 km) |
| Riverdale to Runcorn | 4,074.22 mi (6,556.82 km) |
| Riverdale to Rushall | 4,119.39 mi (6,629.52 km) |
| Riverdale to Rushden | 4,180.54 mi (6,727.94 km) |
| Riverdale to Rustington | 4,216.51 mi (6,785.81 km) |
| Riverdale to Rutherglen | 3,973.75 mi (6,395.14 km) |
| Riverdale to Ryde | 4,191.13 mi (6,744.97 km) |
| Riverdale to Rye | 4,264.23 mi (6,862.62 km) |
| Riverdale to Ryhope | 4,098.57 mi (6,596.02 km) |
| Riverdale to Saffron Walden | 4,220.27 mi (6,791.88 km) |
| Riverdale to Saint Albans | 4,202.70 mi (6,763.59 km) |
| Riverdale to Saint Andrews | 4,018.57 mi (6,467.27 km) |
| Riverdale to Saint Austell | 4,046.87 mi (6,512.81 km) |
| Riverdale to Saint Budeaux | 4,071.20 mi (6,551.97 km) |
| Riverdale to Saint Helens | 4,071.54 mi (6,552.51 km) |
