| Herndon to Santa Rosa (California) | 2,417.94 mi (3,891.30 km) |
| Herndon to Santaquin (Utah) | 1,825.06 mi (2,937.14 km) |
| Herndon to Santee (California) | 2,237.78 mi (3,601.36 km) |
| Herndon to Sapulpa (Oklahoma) | 1,044.16 mi (1,680.41 km) |
| Herndon to Saraland (Alabama) | 825.56 mi (1,328.61 km) |
| Herndon to Sarasota (Florida) | 856.79 mi (1,378.87 km) |
| Herndon to Sarasota Springs (Florida) | 857.39 mi (1,379.84 km) |
| Herndon to Saratoga (California) | 2,404.91 mi (3,870.32 km) |
| Herndon to Saratoga Springs (New York) | 339.85 mi (546.93 km) |
| Herndon to Saratoga Springs (Utah) | 1,827.48 mi (2,941.04 km) |
| Herndon to Sartell (Minnesota) | 972.59 mi (1,565.23 km) |
| Herndon to Satellite Beach (Florida) | 768.11 mi (1,236.15 km) |
| Herndon to Sauk Rapids (Minnesota) | 969.06 mi (1,559.55 km) |
| Herndon to Sault Ste. Marie (Michigan) | 628.00 mi (1,010.66 km) |
| Herndon to Savage (Minnesota) | 911.97 mi (1,467.67 km) |
