| Forfar to Silver Firs (Washington) | 4,418.82 mi (7,111.40 km) |
| Forfar to Silver Spring (Maryland) | 3,456.08 mi (5,562.03 km) |
| Forfar to Silver Springs Shores (Florida) | 4,159.29 mi (6,693.74 km) |
| Forfar to Silverdale (Washington) | 4,443.52 mi (7,151.16 km) |
| Forfar to Silverton (Oregon) | 4,602.67 mi (7,407.28 km) |
| Forfar to Simi Valley (California) | 5,127.51 mi (8,251.93 km) |
| Forfar to Simpsonville (South Carolina) | 3,869.11 mi (6,226.73 km) |
| Forfar to Sioux City (Iowa) | 3,962.55 mi (6,377.10 km) |
| Forfar to Sioux Falls (South Dakota) | 3,919.26 mi (6,307.44 km) |
| Forfar to Skokie (Illinois) | 3,690.98 mi (5,940.05 km) |
| Forfar to Sleepy Hollow (New York) | 3,236.34 mi (5,208.39 km) |
| Forfar to Slidell (Louisiana) | 4,383.89 mi (7,055.18 km) |
| Forfar to Smithfield (North Carolina) | 3,683.01 mi (5,927.24 km) |
| Forfar to Smithfield (Utah) | 4,484.33 mi (7,216.83 km) |
| Forfar to Smithville (Missouri) | 4,064.77 mi (6,541.61 km) |
