| Houthulst to Silver Firs (Washington) | 4,873.52 mi (7,843.17 km) |
| Houthulst to Silver Spring (Maryland) | 3,797.32 mi (6,111.20 km) |
| Houthulst to Silver Springs Shores (Florida) | 4,475.15 mi (7,202.05 km) |
| Houthulst to Silverdale (Washington) | 4,898.42 mi (7,883.24 km) |
| Houthulst to Silverton (Oregon) | 5,056.08 mi (8,136.98 km) |
| Houthulst to Simi Valley (California) | 5,566.16 mi (8,957.87 km) |
| Houthulst to Simpsonville (South Carolina) | 4,210.07 mi (6,775.46 km) |
| Houthulst to Sioux City (Iowa) | 4,372.88 mi (7,037.47 km) |
| Houthulst to Sioux Falls (South Dakota) | 4,333.17 mi (6,973.56 km) |
| Houthulst to Skokie (Illinois) | 4,078.62 mi (6,563.91 km) |
| Houthulst to Sleepy Hollow (New York) | 3,576.94 mi (5,756.53 km) |
| Houthulst to Slidell (Louisiana) | 4,735.40 mi (7,620.89 km) |
| Houthulst to Smithfield (North Carolina) | 4,012.55 mi (6,457.57 km) |
| Houthulst to Smithfield (Utah) | 4,922.27 mi (7,921.63 km) |
| Houthulst to Smithville (Missouri) | 4,461.75 mi (7,180.50 km) |
