| Knoxville to Rosolini | 5,210.99 mi (8,386.27 km) |
| Knoxville to Rossano | 5,179.03 mi (8,334.84 km) |
| Knoxville to Rottofreno | 4,671.64 mi (7,518.28 km) |
| Knoxville to Rovato | 4,673.59 mi (7,521.42 km) |
| Knoxville to Roverbella | 4,716.23 mi (7,590.04 km) |
| Knoxville to Rovereto | 4,707.02 mi (7,575.22 km) |
| Knoxville to Rovigo | 4,765.97 mi (7,670.09 km) |
| Knoxville to Rozzano | 4,643.77 mi (7,473.43 km) |
| Knoxville to Rubano | 4,753.23 mi (7,649.59 km) |
| Knoxville to Rubiera | 4,738.14 mi (7,625.30 km) |
| Knoxville to Ruffano | 5,232.96 mi (8,421.63 km) |
| Knoxville to Russi | 4,800.84 mi (7,726.21 km) |
| Knoxville to Rutigliano | 5,137.21 mi (8,267.54 km) |
| Knoxville to Ruvo di Puglia | 5,112.13 mi (8,227.17 km) |
| Knoxville to Sabaudia | 4,954.71 mi (7,973.83 km) |
