| Herndon to Scottsboro (Alabama) | 564.39 mi (908.29 km) |
| Herndon to Scottsdale (Arizona) | 1,941.63 mi (3,124.75 km) |
| Herndon to Scranton (Pennsylvania) | 191.18 mi (307.67 km) |
| Herndon to Seabrook (Maryland) | 28.83 mi (46.39 km) |
| Herndon to Seabrook (Texas) | 1,194.74 mi (1,922.75 km) |
| Herndon to Seaford (New York) | 237.62 mi (382.40 km) |
| Herndon to Seagoville (Texas) | 1,155.93 mi (1,860.30 km) |
| Herndon to Seal Beach (California) | 2,273.12 mi (3,658.24 km) |
| Herndon to Searcy (Arkansas) | 830.47 mi (1,336.51 km) |
| Herndon to Seaside (California) | 2,407.27 mi (3,874.13 km) |
| Herndon to SeaTac (Washington) | 2,301.97 mi (3,704.66 km) |
| Herndon to Seattle (Washington) | 2,302.76 mi (3,705.93 km) |
| Herndon to Sebastian (Florida) | 793.21 mi (1,276.54 km) |
| Herndon to Sebring (Florida) | 827.87 mi (1,332.33 km) |
| Herndon to Secaucus (New Jersey) | 215.99 mi (347.61 km) |
