| Houston to Rhondda | 4,714.33 mi (7,586.98 km) |
| Houston to Rhosllanerchrugog | 4,694.53 mi (7,555.11 km) |
| Houston to Rhyl | 4,670.43 mi (7,516.33 km) |
| Houston to Rhymney | 4,716.17 mi (7,589.95 km) |
| Houston to Richmond | 4,842.61 mi (7,793.43 km) |
| Houston to Rickmansworth | 4,831.16 mi (7,775.00 km) |
| Houston to Ripley | 4,757.25 mi (7,656.06 km) |
| Houston to Ripon | 4,725.13 mi (7,604.37 km) |
| Houston to Risca | 4,727.60 mi (7,608.33 km) |
| Houston to Rochdale | 4,714.06 mi (7,586.54 km) |
| Houston to Rochester | 4,876.50 mi (7,847.98 km) |
| Houston to Rock Ferry | 4,687.42 mi (7,543.68 km) |
| Houston to Rogerstone | 4,729.53 mi (7,611.44 km) |
| Houston to Romford | 4,858.31 mi (7,818.69 km) |
| Houston to Romsey | 4,807.44 mi (7,736.83 km) |
