| Potomac to Sanford (Maine) | 452.26 mi (727.84 km) |
| Potomac to Sanford (North Carolina) | 266.93 mi (429.58 km) |
| Potomac to Sanger (California) | 2,295.69 mi (3,694.56 km) |
| Potomac to Santa Ana (California) | 2,273.52 mi (3,658.87 km) |
| Potomac to Santa Barbara (California) | 2,354.90 mi (3,789.85 km) |
| Potomac to Santa Clara (California) | 2,409.42 mi (3,877.58 km) |
| Potomac to Santa Clara (Oregon) | 2,369.69 mi (3,813.64 km) |
| Potomac to Santa Clarita (California) | 2,289.76 mi (3,685.02 km) |
| Potomac to Santa Cruz (California) | 2,420.76 mi (3,895.84 km) |
| Potomac to Santa Fe (New Mexico) | 1,591.53 mi (2,561.32 km) |
| Potomac to Santa Fe (Texas) | 1,216.83 mi (1,958.30 km) |
| Potomac to Santa Fe Springs (California) | 2,278.32 mi (3,666.61 km) |
| Potomac to Santa Maria (California) | 2,381.47 mi (3,832.60 km) |
| Potomac to Santa Monica (California) | 2,298.50 mi (3,699.07 km) |
| Potomac to Santa Paula (California) | 2,321.71 mi (3,736.43 km) |
