| Hemel Hempstead to Argentona | 717.42 mi (1,154.58 km) |
| Hemel Hempstead to Arico el Nuevo | 1,826.70 mi (2,939.79 km) |
| Hemel Hempstead to Armilla | 1,020.56 mi (1,642.44 km) |
| Hemel Hempstead to Arnedo | 663.29 mi (1,067.46 km) |
| Hemel Hempstead to Arona | 1,836.79 mi (2,956.03 km) |
| Hemel Hempstead to Arrecife | 1,712.60 mi (2,756.16 km) |
| Hemel Hempstead to Arrigorriaga | 600.99 mi (967.20 km) |
| Hemel Hempstead to Arroyomolinos | 810.26 mi (1,303.98 km) |
| Hemel Hempstead to Arteijo | 692.96 mi (1,115.22 km) |
| Hemel Hempstead to Arucas | 1,809.10 mi (2,911.47 km) |
| Hemel Hempstead to Aspe | 926.45 mi (1,490.97 km) |
| Hemel Hempstead to Astorga | 693.42 mi (1,115.96 km) |
| Hemel Hempstead to Atarfe | 1,016.12 mi (1,635.28 km) |
| Hemel Hempstead to Avila | 792.80 mi (1,275.88 km) |
| Hemel Hempstead to Aviles | 619.90 mi (997.63 km) |
