| Herndon to Shoreview (Minnesota) | 909.87 mi (1,464.29 km) |
| Herndon to Shorewood (Illinois) | 597.08 mi (960.90 km) |
| Herndon to Shorewood (Wisconsin) | 616.27 mi (991.80 km) |
| Herndon to Short Hills (New Jersey) | 203.11 mi (326.88 km) |
| Herndon to Short Pump (Virginia) | 91.73 mi (147.63 km) |
| Herndon to Show Low (Arizona) | 1,829.57 mi (2,944.40 km) |
| Herndon to Shreveport (Louisiana) | 1,022.24 mi (1,645.13 km) |
| Herndon to Sicklerville (New Jersey) | 138.62 mi (223.09 km) |
| Herndon to Sidney (Ohio) | 372.02 mi (598.71 km) |
| Herndon to Sierra Madre (California) | 2,261.84 mi (3,640.08 km) |
| Herndon to Sierra Vista (Arizona) | 1,915.27 mi (3,082.34 km) |
| Herndon to Sierra Vista Southeast (Arizona) | 1,913.16 mi (3,078.94 km) |
| Herndon to Signal Hill (California) | 2,277.10 mi (3,664.63 km) |
| Herndon to Sikeston (Missouri) | 679.81 mi (1,094.04 km) |
| Herndon to Siloam Springs (Arkansas) | 956.82 mi (1,539.85 km) |
