| Houston to Rodgau | 5,246.05 mi (8,442.71 km) |
| Houston to Roding | 5,414.41 mi (8,713.66 km) |
| Houston to Rodinghausen | 5,154.79 mi (8,295.83 km) |
| Houston to Roetgen | 5,121.31 mi (8,241.94 km) |
| Houston to Rommerskirchen | 5,127.76 mi (8,252.32 km) |
| Houston to Ronnenberg | 5,195.78 mi (8,361.81 km) |
| Houston to Rosbach vor der Hohe | 5,229.36 mi (8,415.84 km) |
| Houston to Rosdorf | 5,233.17 mi (8,421.98 km) |
| Houston to Rosenheim | 5,449.75 mi (8,770.52 km) |
| Houston to Rosrath | 5,151.01 mi (8,289.75 km) |
| Houston to Rossdorf | 5,246.58 mi (8,443.55 km) |
| Houston to Rosstal | 5,344.66 mi (8,601.39 km) |
| Houston to Rostock | 5,222.04 mi (8,404.06 km) |
| Houston to Rotenburg an der Fulda | 5,244.28 mi (8,439.85 km) |
| Houston to Roth | 5,358.19 mi (8,623.17 km) |
