| Boynton Beach to Silver Firs (Washington) | 2,696.79 mi (4,340.06 km) |
| Boynton Beach to Silver Spring (Maryland) | 879.91 mi (1,416.07 km) |
| Boynton Beach to Silver Springs Shores (Florida) | 214.12 mi (344.59 km) |
| Boynton Beach to Silverdale (Washington) | 2,716.32 mi (4,371.49 km) |
| Boynton Beach to Silverton (Oregon) | 2,671.79 mi (4,299.83 km) |
| Boynton Beach to Simi Valley (California) | 2,350.86 mi (3,783.35 km) |
| Boynton Beach to Simpsonville (South Carolina) | 581.13 mi (935.25 km) |
| Boynton Beach to Sioux City (Iowa) | 1,436.63 mi (2,312.04 km) |
| Boynton Beach to Sioux Falls (South Dakota) | 1,500.18 mi (2,414.30 km) |
| Boynton Beach to Skokie (Illinois) | 1,156.02 mi (1,860.44 km) |
| Boynton Beach to Sleepy Hollow (New York) | 1,066.86 mi (1,716.95 km) |
| Boynton Beach to Slidell (Louisiana) | 643.99 mi (1,036.40 km) |
| Boynton Beach to Smithfield (North Carolina) | 629.19 mi (1,012.59 km) |
| Boynton Beach to Smithfield (Utah) | 2,082.52 mi (3,351.49 km) |
| Boynton Beach to Smithville (Missouri) | 1,219.88 mi (1,963.21 km) |
