| Hwlffordd to Argentona | 788.43 mi (1,268.85 km) |
| Hwlffordd to Arico el Nuevo | 1,736.74 mi (2,795.01 km) |
| Hwlffordd to Armilla | 1,014.37 mi (1,632.47 km) |
| Hwlffordd to Arnedo | 675.67 mi (1,087.38 km) |
| Hwlffordd to Arona | 1,746.00 mi (2,809.92 km) |
| Hwlffordd to Arrecife | 1,638.59 mi (2,637.05 km) |
| Hwlffordd to Arrigorriaga | 601.51 mi (968.04 km) |
| Hwlffordd to Arroyomolinos | 798.50 mi (1,285.06 km) |
| Hwlffordd to Arteijo | 609.59 mi (981.03 km) |
| Hwlffordd to Arucas | 1,724.91 mi (2,775.98 km) |
| Hwlffordd to Aspe | 951.53 mi (1,531.34 km) |
| Hwlffordd to Astorga | 647.43 mi (1,041.94 km) |
| Hwlffordd to Atarfe | 1,009.11 mi (1,624.01 km) |
| Hwlffordd to Avila | 770.51 mi (1,240.02 km) |
| Hwlffordd to Aviles | 571.26 mi (919.35 km) |
