| Gallarate to Silver Firs (Washington) | 5,327.43 mi (8,573.67 km) |
| Gallarate to Silver Spring (Maryland) | 4,191.98 mi (6,746.35 km) |
| Gallarate to Silver Springs Shores (Florida) | 4,847.55 mi (7,801.37 km) |
| Gallarate to Silverdale (Washington) | 5,352.25 mi (8,613.61 km) |
| Gallarate to Silverton (Oregon) | 5,510.35 mi (8,868.06 km) |
| Gallarate to Simi Valley (California) | 6,017.18 mi (9,683.71 km) |
| Gallarate to Simpsonville (South Carolina) | 4,602.37 mi (7,406.80 km) |
| Gallarate to Sioux City (Iowa) | 4,810.27 mi (7,741.38 km) |
| Gallarate to Sioux Falls (South Dakota) | 4,772.64 mi (7,680.83 km) |
| Gallarate to Skokie (Illinois) | 4,502.94 mi (7,246.78 km) |
| Gallarate to Sleepy Hollow (New York) | 3,972.43 mi (6,393.01 km) |
| Gallarate to Slidell (Louisiana) | 5,132.90 mi (8,260.60 km) |
| Gallarate to Smithfield (North Carolina) | 4,397.73 mi (7,077.47 km) |
| Gallarate to Smithfield (Utah) | 5,373.22 mi (8,647.37 km) |
| Gallarate to Smithville (Missouri) | 4,890.96 mi (7,871.24 km) |
