| San Gwann to Silver Firs (Washington) | 6,060.31 mi (9,753.13 km) |
| San Gwann to Silver Spring (Maryland) | 4,791.64 mi (7,711.40 km) |
| San Gwann to Silver Springs Shores (Florida) | 5,399.74 mi (8,690.04 km) |
| San Gwann to Silverdale (Washington) | 6,085.37 mi (9,793.45 km) |
| San Gwann to Silverton (Oregon) | 6,241.59 mi (10,044.86 km) |
| San Gwann to Simi Valley (California) | 6,727.39 mi (10,826.68 km) |
| San Gwann to Simpsonville (South Carolina) | 5,193.32 mi (8,357.85 km) |
| San Gwann to Sioux City (Iowa) | 5,487.95 mi (8,832.00 km) |
| San Gwann to Sioux Falls (South Dakota) | 5,455.16 mi (8,779.23 km) |
| San Gwann to Skokie (Illinois) | 5,154.98 mi (8,296.14 km) |
| San Gwann to Sleepy Hollow (New York) | 4,576.02 mi (7,364.40 km) |
| San Gwann to Slidell (Louisiana) | 5,728.17 mi (9,218.60 km) |
| San Gwann to Smithfield (North Carolina) | 4,978.25 mi (8,011.72 km) |
| San Gwann to Smithfield (Utah) | 6,084.22 mi (9,791.60 km) |
| San Gwann to Smithville (Missouri) | 5,550.68 mi (8,932.95 km) |
