| Dumfries to Silver Firs (Washington) | 4,483.33 mi (7,215.22 km) |
| Dumfries to Silver Spring (Maryland) | 3,453.73 mi (5,558.24 km) |
| Dumfries to Silver Springs Shores (Florida) | 4,148.50 mi (6,676.36 km) |
| Dumfries to Silverdale (Washington) | 4,508.37 mi (7,255.53 km) |
| Dumfries to Silverton (Oregon) | 4,665.10 mi (7,507.75 km) |
| Dumfries to Simi Valley (California) | 5,174.95 mi (8,328.28 km) |
| Dumfries to Simpsonville (South Carolina) | 3,867.08 mi (6,223.47 km) |
| Dumfries to Sioux City (Iowa) | 3,991.55 mi (6,423.78 km) |
| Dumfries to Sioux Falls (South Dakota) | 3,950.24 mi (6,357.30 km) |
| Dumfries to Skokie (Illinois) | 3,708.35 mi (5,968.02 km) |
| Dumfries to Sleepy Hollow (New York) | 3,233.49 mi (5,203.80 km) |
| Dumfries to Slidell (Louisiana) | 4,386.36 mi (7,059.16 km) |
| Dumfries to Smithfield (North Carolina) | 3,676.56 mi (5,916.85 km) |
| Dumfries to Smithfield (Utah) | 4,531.15 mi (7,292.18 km) |
| Dumfries to Smithville (Missouri) | 4,086.87 mi (6,577.19 km) |
