| Ustron to Arico el Nuevo | 2,374.77 mi (3,821.82 km) |
| Ustron to Armilla | 1,412.11 mi (2,272.58 km) |
| Ustron to Arnedo | 1,124.90 mi (1,810.36 km) |
| Ustron to Arona | 2,386.86 mi (3,841.28 km) |
| Ustron to Arrecife | 2,217.08 mi (3,568.05 km) |
| Ustron to Arrigorriaga | 1,121.22 mi (1,804.42 km) |
| Ustron to Arroyomolinos | 1,280.17 mi (2,060.24 km) |
| Ustron to Arteijo | 1,363.77 mi (2,194.78 km) |
| Ustron to Arucas | 2,339.44 mi (3,764.96 km) |
| Ustron to Aspe | 1,243.92 mi (2,001.89 km) |
| Ustron to Astorga | 1,285.61 mi (2,068.99 km) |
| Ustron to Atarfe | 1,411.41 mi (2,271.44 km) |
| Ustron to Avila | 1,296.73 mi (2,086.88 km) |
| Ustron to Aviles | 1,240.77 mi (1,996.83 km) |
| Ustron to Ayamonte | 1,560.94 mi (2,512.09 km) |
