| Huedin to Alenquer | 1,694.36 mi (2,726.82 km) |
| Huedin to Alfena | 1,602.75 mi (2,579.38 km) |
| Huedin to Alijo | 1,552.10 mi (2,497.87 km) |
| Huedin to Aljustrel | 1,694.10 mi (2,726.39 km) |
| Huedin to Almada | 1,713.54 mi (2,757.68 km) |
| Huedin to Almargem | 1,713.14 mi (2,757.03 km) |
| Huedin to Almeirim | 1,670.59 mi (2,688.55 km) |
| Huedin to Amadora | 1,715.24 mi (2,760.42 km) |
| Huedin to Amarante | 1,580.28 mi (2,543.22 km) |
| Huedin to Amares | 1,582.91 mi (2,547.45 km) |
| Huedin to Amora | 1,713.55 mi (2,757.69 km) |
| Huedin to Anadia | 1,622.42 mi (2,611.03 km) |
| Huedin to Angra do Heroismo | 2,565.36 mi (4,128.54 km) |
| Huedin to Ansiao | 1,638.59 mi (2,637.06 km) |
| Huedin to Anta | 1,614.19 mi (2,597.78 km) |
