| Radford to Security-Widefield (Colorado) | 1,317.28 mi (2,119.95 km) |
| Radford to Sedalia (Missouri) | 698.94 mi (1,124.84 km) |
| Radford to Sedro-Woolley (Washington) | 2,221.45 mi (3,575.08 km) |
| Radford to Seguin (Texas) | 1,129.01 mi (1,816.96 km) |
| Radford to Selden (New York) | 479.10 mi (771.03 km) |
| Radford to Selma (Alabama) | 490.47 mi (789.33 km) |
| Radford to Selma (California) | 2,144.28 mi (3,450.89 km) |
| Radford to Selma (Texas) | 1,146.74 mi (1,845.50 km) |
| Radford to Seminole (Florida) | 654.07 mi (1,052.62 km) |
| Radford to Seven Hills (Ohio) | 300.14 mi (483.02 km) |
| Radford to Seven Oaks (South Carolina) | 215.01 mi (346.03 km) |
| Radford to Severn (Maryland) | 251.80 mi (405.23 km) |
| Radford to Severna Park (Maryland) | 255.84 mi (411.73 km) |
| Radford to Sevierville (Tennessee) | 187.65 mi (301.99 km) |
| Radford to Seymour (Indiana) | 316.33 mi (509.08 km) |
