| Herndon to Anoka (Minnesota) | 924.58 mi (1,487.98 km) |
| Herndon to Ansonia (Connecticut) | 280.83 mi (451.96 km) |
| Herndon to Antelope (California) | 2,342.92 mi (3,770.56 km) |
| Herndon to Anthem (Arizona) | 1,951.02 mi (3,139.87 km) |
| Herndon to Antioch (California) | 2,379.01 mi (3,828.65 km) |
| Herndon to Antioch (Illinois) | 609.10 mi (980.25 km) |
| Herndon to Apache Junction (Arizona) | 1,931.09 mi (3,107.78 km) |
| Herndon to Apex (North Carolina) | 238.70 mi (384.15 km) |
| Herndon to Apollo Beach (Florida) | 826.30 mi (1,329.80 km) |
| Herndon to Apopka (Florida) | 748.05 mi (1,203.87 km) |
| Herndon to Apple Valley (California) | 2,208.16 mi (3,553.69 km) |
| Herndon to Apple Valley (Minnesota) | 904.28 mi (1,455.29 km) |
| Herndon to Appleton (Wisconsin) | 675.44 mi (1,087.01 km) |
| Herndon to Arbutus (Maryland) | 41.74 mi (67.17 km) |
| Herndon to Arcadia (California) | 2,261.97 mi (3,640.30 km) |
