| Letchworth to Argentona | 730.67 mi (1,175.90 km) |
| Letchworth to Arico el Nuevo | 1,845.32 mi (2,969.76 km) |
| Letchworth to Armilla | 1,037.70 mi (1,670.01 km) |
| Letchworth to Arnedo | 680.09 mi (1,094.50 km) |
| Letchworth to Arona | 1,855.41 mi (2,985.99 km) |
| Letchworth to Arrecife | 1,731.15 mi (2,786.02 km) |
| Letchworth to Arrigorriaga | 618.36 mi (995.15 km) |
| Letchworth to Arroyomolinos | 827.76 mi (1,332.15 km) |
| Letchworth to Arteijo | 711.56 mi (1,145.15 km) |
| Letchworth to Arucas | 1,827.71 mi (2,941.42 km) |
| Letchworth to Aspe | 942.27 mi (1,516.43 km) |
| Letchworth to Astorga | 711.83 mi (1,145.58 km) |
| Letchworth to Atarfe | 1,033.28 mi (1,662.91 km) |
| Letchworth to Avila | 810.63 mi (1,304.59 km) |
| Letchworth to Aviles | 638.38 mi (1,027.38 km) |
