| Williamstown to Rosolini | 4,660.50 mi (7,500.35 km) |
| Williamstown to Rossano | 4,632.03 mi (7,454.53 km) |
| Williamstown to Rottofreno | 4,127.95 mi (6,643.30 km) |
| Williamstown to Rovato | 4,131.09 mi (6,648.34 km) |
| Williamstown to Roverbella | 4,173.72 mi (6,716.95 km) |
| Williamstown to Rovereto | 4,165.84 mi (6,704.26 km) |
| Williamstown to Rovigo | 4,223.84 mi (6,797.62 km) |
| Williamstown to Rozzano | 4,100.38 mi (6,598.93 km) |
| Williamstown to Rubano | 4,211.74 mi (6,778.13 km) |
| Williamstown to Rubiera | 4,194.57 mi (6,750.51 km) |
| Williamstown to Ruffano | 4,687.56 mi (7,543.89 km) |
| Williamstown to Russi | 4,257.66 mi (6,852.04 km) |
| Williamstown to Rutigliano | 4,592.16 mi (7,390.37 km) |
| Williamstown to Ruvo di Puglia | 4,567.04 mi (7,349.94 km) |
| Williamstown to Sabaudia | 4,407.66 mi (7,093.45 km) |
