| Alfafar to Silver Firs (Washington) | 5,428.87 mi (8,736.92 km) |
| Alfafar to Silver Spring (Maryland) | 3,967.34 mi (6,384.82 km) |
| Alfafar to Silver Springs Shores (Florida) | 4,557.86 mi (7,335.17 km) |
| Alfafar to Silverdale (Washington) | 5,455.54 mi (8,779.85 km) |
| Alfafar to Silverton (Oregon) | 5,596.43 mi (9,006.58 km) |
| Alfafar to Simi Valley (California) | 6,003.28 mi (9,661.34 km) |
| Alfafar to Simpsonville (South Carolina) | 4,363.51 mi (7,022.39 km) |
| Alfafar to Sioux City (Iowa) | 4,720.32 mi (7,596.62 km) |
| Alfafar to Sioux Falls (South Dakota) | 4,694.09 mi (7,554.41 km) |
| Alfafar to Skokie (Illinois) | 4,362.84 mi (7,021.31 km) |
| Alfafar to Sleepy Hollow (New York) | 3,754.77 mi (6,042.71 km) |
| Alfafar to Slidell (Louisiana) | 4,898.13 mi (7,882.78 km) |
| Alfafar to Smithfield (North Carolina) | 4,145.33 mi (6,671.27 km) |
| Alfafar to Smithfield (Utah) | 5,367.81 mi (8,638.65 km) |
| Alfafar to Smithville (Missouri) | 4,762.87 mi (7,665.09 km) |
