| Bostonia to Silver Firs (Washington) | 1,074.32 mi (1,728.96 km) |
| Bostonia to Silver Spring (Maryland) | 2,256.33 mi (3,631.22 km) |
| Bostonia to Silver Springs Shores (Florida) | 2,076.02 mi (3,341.03 km) |
| Bostonia to Silverdale (Washington) | 1,068.74 mi (1,719.97 km) |
| Bostonia to Silverton (Oregon) | 897.72 mi (1,444.74 km) |
| Bostonia to Simi Valley (California) | 144.07 mi (231.86 km) |
| Bostonia to Simpsonville (South Carolina) | 1,986.95 mi (3,197.69 km) |
| Bostonia to Sioux City (Iowa) | 1,303.10 mi (2,097.14 km) |
| Bostonia to Sioux Falls (South Dakota) | 1,318.90 mi (2,122.56 km) |
| Bostonia to Skokie (Illinois) | 1,713.99 mi (2,758.40 km) |
| Bostonia to Sleepy Hollow (New York) | 2,420.20 mi (3,894.94 km) |
| Bostonia to Slidell (Louisiana) | 1,604.53 mi (2,582.25 km) |
| Bostonia to Smithfield (North Carolina) | 2,200.47 mi (3,541.32 km) |
| Bostonia to Smithfield (Utah) | 683.21 mi (1,099.51 km) |
| Bostonia to Smithville (Missouri) | 1,324.66 mi (2,131.83 km) |
