| Herndon to Ames | 3,497.29 mi (5,628.34 km) |
| Herndon to Amorebieta | 3,765.93 mi (6,060.69 km) |
| Herndon to Amposta | 3,992.74 mi (6,425.70 km) |
| Herndon to Amurrio | 3,758.01 mi (6,047.93 km) |
| Herndon to Andoain | 3,799.23 mi (6,114.27 km) |
| Herndon to Andraitx | 4,114.83 mi (6,622.18 km) |
| Herndon to Andujar | 3,850.41 mi (6,196.64 km) |
| Herndon to Antequera | 3,856.11 mi (6,205.81 km) |
| Herndon to Antigua | 3,642.52 mi (5,862.07 km) |
| Herndon to Aranda de Duero | 3,763.32 mi (6,056.48 km) |
| Herndon to Aranjuez | 3,813.64 mi (6,137.46 km) |
| Herndon to Archena | 3,982.40 mi (6,409.05 km) |
| Herndon to Arcos de la Frontera | 3,802.60 mi (6,119.69 km) |
| Herndon to Arenys de Mar | 4,058.09 mi (6,530.87 km) |
| Herndon to Arenys de Munt | 4,056.68 mi (6,528.60 km) |
