| Sanlucar de Barrameda to Silver Firs (Washington) | 5,381.02 mi (8,659.92 km) |
| Sanlucar de Barrameda to Silver Spring (Maryland) | 3,755.56 mi (6,043.98 km) |
| Sanlucar de Barrameda to Silver Springs Shores (Florida) | 4,306.05 mi (6,929.91 km) |
| Sanlucar de Barrameda to Silverdale (Washington) | 5,408.47 mi (8,704.08 km) |
| Sanlucar de Barrameda to Silverton (Oregon) | 5,537.53 mi (8,911.79 km) |
| Sanlucar de Barrameda to Simi Valley (California) | 5,882.53 mi (9,467.01 km) |
| Sanlucar de Barrameda to Simpsonville (South Carolina) | 4,139.62 mi (6,662.08 km) |
| Sanlucar de Barrameda to Sioux City (Iowa) | 4,572.29 mi (7,358.39 km) |
| Sanlucar de Barrameda to Sioux Falls (South Dakota) | 4,552.70 mi (7,326.86 km) |
| Sanlucar de Barrameda to Skokie (Illinois) | 4,191.77 mi (6,746.00 km) |
| Sanlucar de Barrameda to Sleepy Hollow (New York) | 3,549.54 mi (5,712.44 km) |
| Sanlucar de Barrameda to Slidell (Louisiana) | 4,671.01 mi (7,517.27 km) |
| Sanlucar de Barrameda to Smithfield (North Carolina) | 3,916.74 mi (6,303.39 km) |
| Sanlucar de Barrameda to Smithfield (Utah) | 5,259.08 mi (8,463.68 km) |
| Sanlucar de Barrameda to Smithville (Missouri) | 4,593.46 mi (7,392.46 km) |
