| South Houston to Rosolini | 5,994.25 mi (9,646.82 km) |
| South Houston to Rossano | 5,957.80 mi (9,588.16 km) |
| South Houston to Rottofreno | 5,446.66 mi (8,765.55 km) |
| South Houston to Rovato | 5,447.14 mi (8,766.33 km) |
| South Houston to Roverbella | 5,489.75 mi (8,834.89 km) |
| South Houston to Rovereto | 5,478.89 mi (8,817.42 km) |
| South Houston to Rovigo | 5,538.94 mi (8,914.06 km) |
| South Houston to Rozzano | 5,418.45 mi (8,720.16 km) |
| South Houston to Rubano | 5,525.42 mi (8,892.31 km) |
| South Houston to Rubiera | 5,512.94 mi (8,872.21 km) |
| South Houston to Ruffano | 6,009.62 mi (9,671.54 km) |
| South Houston to Russi | 5,575.08 mi (8,972.23 km) |
| South Houston to Rutigliano | 5,913.50 mi (9,516.86 km) |
| South Houston to Ruvo di Puglia | 5,888.48 mi (9,476.60 km) |
| South Houston to Sabaudia | 5,733.68 mi (9,227.47 km) |
