| Houston to Rancho Cordova (California) | 1,591.28 mi (2,560.92 km) |
| Houston to Rancho Cucamonga (California) | 1,331.37 mi (2,142.63 km) |
| Houston to Rancho Mirage (California) | 1,263.53 mi (2,033.46 km) |
| Houston to Rancho Palos Verdes (California) | 1,374.09 mi (2,211.38 km) |
| Houston to Rancho San Diego (California) | 1,285.71 mi (2,069.15 km) |
| Houston to Rancho Santa Margarita (California) | 1,329.53 mi (2,139.67 km) |
| Houston to Randallstown (Maryland) | 1,243.83 mi (2,001.75 km) |
| Houston to Rantoul (Illinois) | 833.20 mi (1,340.91 km) |
| Houston to Rapid City (South Dakota) | 1,076.40 mi (1,732.30 km) |
| Houston to Ravenna (Ohio) | 1,115.78 mi (1,795.67 km) |
| Houston to Raymondville (Texas) | 271.06 mi (436.23 km) |
| Houston to Raymore (Missouri) | 625.25 mi (1,006.25 km) |
| Houston to Raytown (Missouri) | 638.41 mi (1,027.42 km) |
| Houston to Reading (Ohio) | 901.02 mi (1,450.05 km) |
| Houston to Reading (Pennsylvania) | 1,315.60 mi (2,117.25 km) |
