| Clay to Argentona | 4,680.64 mi (7,532.76 km) |
| Clay to Arico el Nuevo | 4,092.62 mi (6,586.43 km) |
| Clay to Armilla | 4,520.20 mi (7,274.56 km) |
| Clay to Arnedo | 4,451.15 mi (7,163.43 km) |
| Clay to Arona | 4,085.05 mi (6,574.25 km) |
| Clay to Arrecife | 4,232.98 mi (6,812.32 km) |
| Clay to Arrigorriaga | 4,387.73 mi (7,061.37 km) |
| Clay to Arroyomolinos | 4,418.57 mi (7,110.99 km) |
| Clay to Arteijo | 4,120.97 mi (6,632.05 km) |
| Clay to Arucas | 4,148.68 mi (6,676.65 km) |
| Clay to Aspe | 4,625.87 mi (7,444.62 km) |
| Clay to Astorga | 4,257.46 mi (6,851.72 km) |
| Clay to Atarfe | 4,514.44 mi (7,265.28 km) |
| Clay to Avila | 4,370.31 mi (7,033.34 km) |
| Clay to Aviles | 4,237.75 mi (6,820.00 km) |
