| Letchworth to Alenquer | 987.68 mi (1,589.51 km) |
| Letchworth to Alfena | 838.78 mi (1,349.89 km) |
| Letchworth to Alijo | 814.46 mi (1,310.75 km) |
| Letchworth to Aljustrel | 1,044.69 mi (1,681.27 km) |
| Letchworth to Almada | 1,014.20 mi (1,632.20 km) |
| Letchworth to Almargem | 1,005.85 mi (1,618.75 km) |
| Letchworth to Almeirim | 970.02 mi (1,561.09 km) |
| Letchworth to Amadora | 1,012.35 mi (1,629.22 km) |
| Letchworth to Amarante | 827.13 mi (1,331.13 km) |
| Letchworth to Amares | 810.88 mi (1,304.98 km) |
| Letchworth to Amora | 1,016.85 mi (1,636.46 km) |
| Letchworth to Anadia | 887.56 mi (1,428.40 km) |
| Letchworth to Angra do Heroismo | 1,586.98 mi (2,554.00 km) |
| Letchworth to Ansiao | 920.46 mi (1,481.33 km) |
| Letchworth to Anta | 855.43 mi (1,376.68 km) |
