| Duluth to Rosolini | 5,113.26 mi (8,229.00 km) |
| Duluth to Rossano | 5,036.03 mi (8,104.71 km) |
| Duluth to Rottofreno | 4,512.23 mi (7,261.73 km) |
| Duluth to Rovato | 4,504.61 mi (7,249.47 km) |
| Duluth to Roverbella | 4,546.06 mi (7,316.17 km) |
| Duluth to Rovereto | 4,527.08 mi (7,285.63 km) |
| Duluth to Rovigo | 4,591.31 mi (7,388.99 km) |
| Duluth to Rozzano | 4,482.74 mi (7,214.28 km) |
| Duluth to Rubano | 4,574.18 mi (7,361.43 km) |
| Duluth to Rubiera | 4,575.74 mi (7,363.95 km) |
| Duluth to Ruffano | 5,072.65 mi (8,163.64 km) |
| Duluth to Russi | 4,633.43 mi (7,456.78 km) |
| Duluth to Rutigliano | 4,976.32 mi (8,008.61 km) |
| Duluth to Ruvo di Puglia | 4,952.23 mi (7,969.85 km) |
| Duluth to Sabaudia | 4,818.32 mi (7,754.34 km) |
