| Arcos de Valdevez to Silver Firs (Washington) | 5,038.76 mi (8,109.10 km) |
| Arcos de Valdevez to Silver Spring (Maryland) | 3,514.79 mi (5,656.51 km) |
| Arcos de Valdevez to Silver Springs Shores (Florida) | 4,107.19 mi (6,609.89 km) |
| Arcos de Valdevez to Silverdale (Washington) | 5,065.95 mi (8,152.85 km) |
| Arcos de Valdevez to Silverton (Oregon) | 5,199.70 mi (8,368.11 km) |
| Arcos de Valdevez to Simi Valley (California) | 5,575.28 mi (8,972.55 km) |
| Arcos de Valdevez to Simpsonville (South Carolina) | 3,910.69 mi (6,293.64 km) |
| Arcos de Valdevez to Sioux City (Iowa) | 4,280.86 mi (6,889.38 km) |
| Arcos de Valdevez to Sioux Falls (South Dakota) | 4,256.84 mi (6,850.73 km) |
| Arcos de Valdevez to Skokie (Illinois) | 3,916.56 mi (6,303.09 km) |
| Arcos de Valdevez to Sleepy Hollow (New York) | 3,302.59 mi (5,315.01 km) |
| Arcos de Valdevez to Slidell (Louisiana) | 4,445.31 mi (7,154.04 km) |
| Arcos de Valdevez to Smithfield (North Carolina) | 3,692.60 mi (5,942.66 km) |
| Arcos de Valdevez to Smithfield (Utah) | 4,944.46 mi (7,957.33 km) |
| Arcos de Valdevez to Smithville (Missouri) | 4,317.30 mi (6,948.03 km) |
