| Wallingford Center to Siloam Springs (Arkansas) | 1,220.38 mi (1,964.02 km) |
| Wallingford Center to Silver Firs (Washington) | 2,422.14 mi (3,898.06 km) |
| Wallingford Center to Silver Spring (Maryland) | 278.72 mi (448.56 km) |
| Wallingford Center to Silver Springs Shores (Florida) | 996.42 mi (1,603.58 km) |
| Wallingford Center to Silverdale (Washington) | 2,448.64 mi (3,940.71 km) |
| Wallingford Center to Silverton (Oregon) | 2,487.24 mi (4,002.83 km) |
| Wallingford Center to Simi Valley (California) | 2,523.92 mi (4,061.86 km) |
| Wallingford Center to Simpsonville (South Carolina) | 691.36 mi (1,112.64 km) |
| Wallingford Center to Sioux City (Iowa) | 1,209.06 mi (1,945.80 km) |
| Wallingford Center to Sioux Falls (South Dakota) | 1,222.46 mi (1,967.36 km) |
| Wallingford Center to Skokie (Illinois) | 769.32 mi (1,238.10 km) |
| Wallingford Center to Sleepy Hollow (New York) | 59.98 mi (96.53 km) |
| Wallingford Center to Slidell (Louisiana) | 1,219.51 mi (1,962.62 km) |
| Wallingford Center to Smithfield (North Carolina) | 507.41 mi (816.60 km) |
| Wallingford Center to Smithfield (Utah) | 1,996.70 mi (3,213.37 km) |
