| Urdorf to Silver Firs (Washington) | 5,217.00 mi (8,395.94 km) |
| Urdorf to Silver Spring (Maryland) | 4,123.06 mi (6,635.43 km) |
| Urdorf to Silver Springs Shores (Florida) | 4,788.12 mi (7,705.74 km) |
| Urdorf to Silverdale (Washington) | 5,241.65 mi (8,435.62 km) |
| Urdorf to Silverton (Oregon) | 5,400.92 mi (8,691.94 km) |
| Urdorf to Simi Valley (California) | 5,916.24 mi (9,521.27 km) |
| Urdorf to Simpsonville (South Carolina) | 4,534.67 mi (7,297.85 km) |
| Urdorf to Sioux City (Iowa) | 4,720.19 mi (7,596.41 km) |
| Urdorf to Sioux Falls (South Dakota) | 4,681.21 mi (7,533.68 km) |
| Urdorf to Skokie (Illinois) | 4,420.28 mi (7,113.75 km) |
| Urdorf to Sleepy Hollow (New York) | 3,903.03 mi (6,281.32 km) |
| Urdorf to Slidell (Louisiana) | 5,063.20 mi (8,148.43 km) |
| Urdorf to Smithfield (North Carolina) | 4,332.89 mi (6,973.12 km) |
| Urdorf to Smithfield (Utah) | 5,272.37 mi (8,485.07 km) |
| Urdorf to Smithville (Missouri) | 4,805.74 mi (7,734.10 km) |
