| Houston to Rende | 5,948.78 mi (9,573.64 km) |
| Houston to Resana | 5,524.97 mi (8,891.58 km) |
| Houston to Rescaldina | 5,402.32 mi (8,694.19 km) |
| Houston to Rezzato | 5,462.52 mi (8,791.07 km) |
| Houston to Rho | 5,408.73 mi (8,704.51 km) |
| Houston to Ribera | 5,892.71 mi (9,483.40 km) |
| Houston to Riccione Marina | 5,615.29 mi (9,036.93 km) |
| Houston to Riesi | 5,938.15 mi (9,556.53 km) |
| Houston to Rieti | 5,684.90 mi (9,148.97 km) |
| Houston to Rignano Flaminio | 5,676.83 mi (9,135.97 km) |
| Houston to Rignano sull'Arno | 5,575.61 mi (8,973.07 km) |
| Houston to Rimini | 5,609.64 mi (9,027.84 km) |
| Houston to Rionero in Vulture | 5,862.65 mi (9,435.03 km) |
| Houston to Riposto | 5,970.25 mi (9,608.19 km) |
| Houston to Riva del Garda | 5,470.93 mi (8,804.61 km) |
