| Humacao to Argentona | 4,279.34 mi (6,886.93 km) |
| Humacao to Arico el Nuevo | 3,187.05 mi (5,129.06 km) |
| Humacao to Armilla | 3,953.90 mi (6,363.19 km) |
| Humacao to Arnedo | 4,049.28 mi (6,516.68 km) |
| Humacao to Arona | 3,175.74 mi (5,110.85 km) |
| Humacao to Arrecife | 3,366.83 mi (5,418.38 km) |
| Humacao to Arrigorriaga | 4,014.33 mi (6,460.44 km) |
| Humacao to Arroyomolinos | 3,947.70 mi (6,353.20 km) |
| Humacao to Arteijo | 3,734.08 mi (6,009.42 km) |
| Humacao to Arucas | 3,246.30 mi (5,224.42 km) |
| Humacao to Aspe | 4,110.63 mi (6,615.42 km) |
| Humacao to Astorga | 3,849.09 mi (6,194.52 km) |
| Humacao to Atarfe | 3,949.99 mi (6,356.90 km) |
| Humacao to Avila | 3,908.41 mi (6,289.98 km) |
| Humacao to Aviles | 3,865.84 mi (6,221.46 km) |
