| Portlethen to Silver Firs (Washington) | 4,415.51 mi (7,106.08 km) |
| Portlethen to Silver Spring (Maryland) | 3,477.63 mi (5,596.71 km) |
| Portlethen to Silver Springs Shores (Florida) | 4,183.21 mi (6,732.22 km) |
| Portlethen to Silverdale (Washington) | 4,440.06 mi (7,145.59 km) |
| Portlethen to Silverton (Oregon) | 4,600.23 mi (7,403.36 km) |
| Portlethen to Simi Valley (California) | 5,131.21 mi (8,257.88 km) |
| Portlethen to Simpsonville (South Carolina) | 3,890.46 mi (6,261.08 km) |
| Portlethen to Sioux City (Iowa) | 3,973.51 mi (6,394.74 km) |
| Portlethen to Sioux Falls (South Dakota) | 3,929.51 mi (6,323.94 km) |
| Portlethen to Skokie (Illinois) | 3,706.09 mi (5,964.37 km) |
| Portlethen to Sleepy Hollow (New York) | 3,258.11 mi (5,243.42 km) |
| Portlethen to Slidell (Louisiana) | 4,403.72 mi (7,087.10 km) |
| Portlethen to Smithfield (North Carolina) | 3,705.75 mi (5,963.82 km) |
| Portlethen to Smithfield (Utah) | 4,488.42 mi (7,223.41 km) |
| Portlethen to Smithville (Missouri) | 4,078.15 mi (6,563.15 km) |
