| Alfaro to Silver Firs (Washington) | 5,233.16 mi (8,421.96 km) |
| Alfaro to Silver Spring (Maryland) | 3,822.26 mi (6,151.33 km) |
| Alfaro to Silver Springs Shores (Florida) | 4,431.78 mi (7,132.26 km) |
| Alfaro to Silverdale (Washington) | 5,259.70 mi (8,464.67 km) |
| Alfaro to Silverton (Oregon) | 5,402.32 mi (8,694.20 km) |
| Alfaro to Simi Valley (California) | 5,821.82 mi (9,369.31 km) |
| Alfaro to Simpsonville (South Carolina) | 4,223.08 mi (6,796.40 km) |
| Alfaro to Sioux City (Iowa) | 4,548.73 mi (7,320.47 km) |
| Alfaro to Sioux Falls (South Dakota) | 4,520.47 mi (7,274.99 km) |
| Alfaro to Skokie (Illinois) | 4,199.89 mi (6,759.07 km) |
| Alfaro to Sleepy Hollow (New York) | 3,607.34 mi (5,805.45 km) |
| Alfaro to Slidell (Louisiana) | 4,757.96 mi (7,657.19 km) |
| Alfaro to Smithfield (North Carolina) | 4,007.86 mi (6,450.03 km) |
| Alfaro to Smithfield (Utah) | 5,184.13 mi (8,343.05 km) |
| Alfaro to Smithville (Missouri) | 4,598.46 mi (7,400.51 km) |
