| South Houston to Rheinbach | 5,151.26 mi (8,290.16 km) |
| South Houston to Rheinberg | 5,108.27 mi (8,220.96 km) |
| South Houston to Rheine | 5,115.78 mi (8,233.05 km) |
| South Houston to Rheinfelden (Baden) | 5,287.03 mi (8,508.65 km) |
| South Houston to Ribnitz-Damgarten | 5,229.10 mi (8,415.43 km) |
| South Houston to Richterich | 5,111.28 mi (8,225.82 km) |
| South Houston to Riedlingen | 5,334.04 mi (8,584.31 km) |
| South Houston to Riegelsberg | 5,194.73 mi (8,360.11 km) |
| South Houston to Rielasingen-Worblingen | 5,323.42 mi (8,567.21 km) |
| South Houston to Riesa | 5,365.89 mi (8,635.56 km) |
| South Houston to Rietberg | 5,169.07 mi (8,318.81 km) |
| South Houston to Rinteln | 5,180.00 mi (8,336.41 km) |
| South Houston to Ritterhude | 5,134.72 mi (8,263.54 km) |
| South Houston to Rodenbach | 5,247.71 mi (8,445.38 km) |
| South Houston to Rodental | 5,320.55 mi (8,562.60 km) |
