| Povoa de Lanhoso to Silver Firs (Washington) | 5,058.65 mi (8,141.12 km) |
| Povoa de Lanhoso to Silver Spring (Maryland) | 3,529.12 mi (5,679.58 km) |
| Povoa de Lanhoso to Silver Springs Shores (Florida) | 4,119.31 mi (6,629.39 km) |
| Povoa de Lanhoso to Silverdale (Washington) | 5,085.85 mi (8,184.89 km) |
| Povoa de Lanhoso to Silverton (Oregon) | 5,219.39 mi (8,399.79 km) |
| Povoa de Lanhoso to Simi Valley (California) | 5,593.45 mi (9,001.78 km) |
| Povoa de Lanhoso to Simpsonville (South Carolina) | 3,924.44 mi (6,315.77 km) |
| Povoa de Lanhoso to Sioux City (Iowa) | 4,298.09 mi (6,917.10 km) |
| Povoa de Lanhoso to Sioux Falls (South Dakota) | 4,274.31 mi (6,878.83 km) |
| Povoa de Lanhoso to Skokie (Illinois) | 3,932.86 mi (6,329.33 km) |
| Povoa de Lanhoso to Sleepy Hollow (New York) | 3,317.23 mi (5,338.56 km) |
| Povoa de Lanhoso to Slidell (Louisiana) | 4,458.98 mi (7,176.03 km) |
| Povoa de Lanhoso to Smithfield (North Carolina) | 3,706.04 mi (5,964.29 km) |
| Povoa de Lanhoso to Smithfield (Utah) | 4,962.96 mi (7,987.11 km) |
| Povoa de Lanhoso to Smithville (Missouri) | 4,333.71 mi (6,974.44 km) |
