| Houston to Roy (Utah) | 1,219.87 mi (1,963.19 km) |
| Houston to Royal Kunia (Hawaii) | 3,900.58 mi (6,277.38 km) |
| Houston to Royal Oak (Michigan) | 1,110.42 mi (1,787.05 km) |
| Houston to Royal Palm Beach (Florida) | 946.46 mi (1,523.18 km) |
| Houston to Royse City (Texas) | 227.13 mi (365.53 km) |
| Houston to Ruskin (Florida) | 798.12 mi (1,284.45 km) |
| Houston to Russellville (Alabama) | 553.91 mi (891.44 km) |
| Houston to Russellville (Arkansas) | 401.31 mi (645.84 km) |
| Houston to Ruston (Louisiana) | 249.97 mi (402.29 km) |
| Houston to Rutherford (New Jersey) | 1,415.87 mi (2,278.62 km) |
| Houston to Rutland (Vermont) | 1,557.70 mi (2,506.88 km) |
| Houston to Sabana Grande (Puerto Rico) | 1,961.35 mi (3,156.49 km) |
| Houston to Sachse (Texas) | 231.10 mi (371.92 km) |
| Houston to Saco (Maine) | 1,666.19 mi (2,681.47 km) |
| Houston to Sacramento (California) | 1,602.46 mi (2,578.91 km) |
