| Radford to Southern Pines (North Carolina) | 148.10 mi (238.35 km) |
| Radford to Southfield (Michigan) | 396.67 mi (638.38 km) |
| Radford to Southgate (Michigan) | 378.24 mi (608.72 km) |
| Radford to Southlake (Texas) | 980.27 mi (1,577.59 km) |
| Radford to Spanaway (Washington) | 2,223.84 mi (3,578.93 km) |
| Radford to Spanish Fork (Utah) | 1,681.97 mi (2,706.87 km) |
| Radford to Spanish Lake (Missouri) | 537.84 mi (865.56 km) |
| Radford to Spanish Springs (Nevada) | 2,108.56 mi (3,393.39 km) |
| Radford to Sparks (Nevada) | 2,111.82 mi (3,398.64 km) |
| Radford to Spartanburg (South Carolina) | 168.78 mi (271.63 km) |
| Radford to Spearfish (South Dakota) | 1,312.69 mi (2,112.57 km) |
| Radford to Speedway (Indiana) | 358.79 mi (577.41 km) |
| Radford to Spencer (Iowa) | 874.38 mi (1,407.18 km) |
| Radford to Spokane (Washington) | 1,994.89 mi (3,210.46 km) |
| Radford to Spokane Valley (Washington) | 1,985.70 mi (3,195.68 km) |
