| Boone to Superior (Colorado) | 1,299.42 mi (2,091.21 km) |
| Boone to Superior (Wisconsin) | 901.37 mi (1,450.62 km) |
| Boone to Surprise (Arizona) | 1,744.90 mi (2,808.15 km) |
| Boone to Susanville (California) | 2,114.00 mi (3,402.15 km) |
| Boone to Sussex (Wisconsin) | 591.50 mi (951.94 km) |
| Boone to Suwanee (Georgia) | 201.72 mi (324.64 km) |
| Boone to Swansea (Illinois) | 484.27 mi (779.36 km) |
| Boone to Sweetwater (Florida) | 724.84 mi (1,166.52 km) |
| Boone to Sweetwater (Texas) | 1,098.14 mi (1,767.29 km) |
| Boone to Sycamore (Illinois) | 548.44 mi (882.63 km) |
| Boone to Sylacauga (Alabama) | 334.61 mi (538.51 km) |
| Boone to Sylvania (Ohio) | 395.43 mi (636.38 km) |
| Boone to Syosset (New York) | 543.72 mi (875.04 km) |
| Boone to Syracuse (New York) | 555.63 mi (894.20 km) |
| Boone to Syracuse (Utah) | 1,665.90 mi (2,681.01 km) |
