| Oostkamp to Silver Firs (Washington) | 4,870.80 mi (7,838.80 km) |
| Oostkamp to Silver Spring (Maryland) | 3,804.54 mi (6,122.82 km) |
| Oostkamp to Silver Springs Shores (Florida) | 4,483.71 mi (7,215.83 km) |
| Oostkamp to Silverdale (Washington) | 4,895.64 mi (7,878.77 km) |
| Oostkamp to Silverton (Oregon) | 5,053.74 mi (8,133.20 km) |
| Oostkamp to Simi Valley (California) | 5,566.41 mi (8,958.27 km) |
| Oostkamp to Simpsonville (South Carolina) | 4,217.39 mi (6,787.24 km) |
| Oostkamp to Sioux City (Iowa) | 4,375.87 mi (7,042.29 km) |
| Oostkamp to Sioux Falls (South Dakota) | 4,335.86 mi (6,977.89 km) |
| Oostkamp to Skokie (Illinois) | 4,083.24 mi (6,571.34 km) |
| Oostkamp to Sleepy Hollow (New York) | 3,584.14 mi (5,768.12 km) |
| Oostkamp to Slidell (Louisiana) | 4,742.27 mi (7,631.94 km) |
| Oostkamp to Smithfield (North Carolina) | 4,020.38 mi (6,470.18 km) |
| Oostkamp to Smithfield (Utah) | 4,922.57 mi (7,922.11 km) |
| Oostkamp to Smithville (Missouri) | 4,465.78 mi (7,186.98 km) |
