| Heiloo to Arico el Nuevo | 2,006.02 mi (3,228.37 km) |
| Heiloo to Armilla | 1,140.99 mi (1,836.24 km) |
| Heiloo to Arnedo | 784.19 mi (1,262.03 km) |
| Heiloo to Arona | 2,016.67 mi (3,245.52 km) |
| Heiloo to Arrecife | 1,880.18 mi (3,025.85 km) |
| Heiloo to Arrigorriaga | 737.38 mi (1,186.70 km) |
| Heiloo to Arroyomolinos | 944.21 mi (1,519.56 km) |
| Heiloo to Arteijo | 884.55 mi (1,423.55 km) |
| Heiloo to Arucas | 1,984.04 mi (3,193.01 km) |
| Heiloo to Aspe | 1,019.37 mi (1,640.51 km) |
| Heiloo to Astorga | 860.49 mi (1,384.82 km) |
| Heiloo to Atarfe | 1,137.46 mi (1,830.56 km) |
| Heiloo to Avila | 936.64 mi (1,507.37 km) |
| Heiloo to Aviles | 792.65 mi (1,275.64 km) |
| Heiloo to Ayamonte | 1,214.38 mi (1,954.36 km) |
