| Herndon to Ascoli Piceno | 4,510.94 mi (7,259.66 km) |
| Herndon to Asola | 4,293.16 mi (6,909.18 km) |
| Herndon to Asolo | 4,337.43 mi (6,980.42 km) |
| Herndon to Assemini | 4,431.86 mi (7,132.39 km) |
| Herndon to Assisi | 4,461.02 mi (7,179.32 km) |
| Herndon to Asti | 4,208.20 mi (6,772.44 km) |
| Herndon to Atessa | 4,576.90 mi (7,365.81 km) |
| Herndon to Atri | 4,537.87 mi (7,302.99 km) |
| Herndon to Atripalda | 4,635.69 mi (7,460.42 km) |
| Herndon to Augusta | 4,792.01 mi (7,712.00 km) |
| Herndon to Aulla | 4,306.86 mi (6,931.22 km) |
| Herndon to Aurisina | 4,416.57 mi (7,107.78 km) |
| Herndon to Avellino | 4,634.07 mi (7,457.82 km) |
| Herndon to Aversa | 4,606.25 mi (7,413.05 km) |
| Herndon to Avezzano | 4,533.71 mi (7,296.30 km) |
