| Herndon to Salisbury (New York) | 237.10 mi (381.58 km) |
| Herndon to Salisbury (North Carolina) | 284.92 mi (458.53 km) |
| Herndon to Salmon Creek (Washington) | 2,326.56 mi (3,744.23 km) |
| Herndon to Salt Lake City (Utah) | 1,824.18 mi (2,935.73 km) |
| Herndon to Sammamish (Washington) | 2,289.63 mi (3,684.81 km) |
| Herndon to San Angelo (Texas) | 1,397.17 mi (2,248.53 km) |
| Herndon to San Anselmo (California) | 2,419.48 mi (3,893.78 km) |
| Herndon to San Antonio (Texas) | 1,369.89 mi (2,204.63 km) |
| Herndon to San Benito (Texas) | 1,470.29 mi (2,366.20 km) |
| Herndon to San Bernardino (California) | 2,221.99 mi (3,575.95 km) |
| Herndon to San Bruno (California) | 2,419.11 mi (3,893.18 km) |
| Herndon to San Buenaventura (California) | 2,322.51 mi (3,737.72 km) |
| Herndon to San Carlos (California) | 2,413.03 mi (3,883.39 km) |
| Herndon to San Carlos Park (Florida) | 900.51 mi (1,449.23 km) |
| Herndon to San Clemente (California) | 2,256.02 mi (3,630.71 km) |
