| Herndon to Altus (Oklahoma) | 1,245.23 mi (2,004.00 km) |
| Herndon to Alum Rock (California) | 2,392.24 mi (3,849.94 km) |
| Herndon to Alvin (Texas) | 1,215.54 mi (1,956.22 km) |
| Herndon to Amarillo (Texas) | 1,368.01 mi (2,201.60 km) |
| Herndon to Amelia (Ohio) | 366.96 mi (590.56 km) |
| Herndon to American Canyon (California) | 2,399.45 mi (3,861.54 km) |
| Herndon to American Fork (Utah) | 1,820.89 mi (2,930.44 km) |
| Herndon to Americus (Georgia) | 611.88 mi (984.73 km) |
| Herndon to Ames (Iowa) | 877.25 mi (1,411.80 km) |
| Herndon to Amherst (Ohio) | 305.88 mi (492.26 km) |
| Herndon to Ammon (Idaho) | 1,809.95 mi (2,912.83 km) |
| Herndon to Amsterdam (New York) | 321.08 mi (516.73 km) |
| Herndon to Anacortes (Washington) | 2,315.51 mi (3,726.46 km) |
| Herndon to Anaheim (California) | 2,259.55 mi (3,636.40 km) |
| Herndon to Anchorage (Alaska) | 3,319.78 mi (5,342.67 km) |
