| Herndon to Argentona | 4,052.05 mi (6,521.15 km) |
| Herndon to Arico el Nuevo | 3,517.86 mi (5,661.44 km) |
| Herndon to Armilla | 3,898.71 mi (6,274.37 km) |
| Herndon to Arnedo | 3,823.01 mi (6,152.53 km) |
| Herndon to Arona | 3,511.13 mi (5,650.62 km) |
| Herndon to Arrecife | 3,648.67 mi (5,871.97 km) |
| Herndon to Arrigorriaga | 3,759.20 mi (6,049.84 km) |
| Herndon to Arroyomolinos | 3,792.67 mi (6,103.72 km) |
| Herndon to Arteijo | 3,493.39 mi (5,622.07 km) |
| Herndon to Arucas | 3,572.18 mi (5,748.86 km) |
| Herndon to Aspe | 4,000.94 mi (6,438.88 km) |
| Herndon to Astorga | 3,630.03 mi (5,841.97 km) |
| Herndon to Atarfe | 3,892.86 mi (6,264.96 km) |
| Herndon to Avila | 3,744.28 mi (6,025.83 km) |
| Herndon to Aviles | 3,609.49 mi (5,808.92 km) |
