| Belfast to Alenquer | 1,083.75 mi (1,744.13 km) |
| Belfast to Alfena | 930.59 mi (1,497.65 km) |
| Belfast to Alijo | 923.06 mi (1,485.52 km) |
| Belfast to Aljustrel | 1,157.25 mi (1,862.41 km) |
| Belfast to Almada | 1,110.01 mi (1,786.39 km) |
| Belfast to Almargem | 1,099.28 mi (1,769.11 km) |
| Belfast to Almeirim | 1,071.12 mi (1,723.80 km) |
| Belfast to Amadora | 1,106.86 mi (1,781.31 km) |
| Belfast to Amarante | 926.18 mi (1,490.54 km) |
| Belfast to Amares | 903.50 mi (1,454.04 km) |
| Belfast to Amora | 1,113.45 mi (1,791.93 km) |
| Belfast to Anadia | 985.36 mi (1,585.78 km) |
| Belfast to Angra do Heroismo | 1,482.61 mi (2,386.03 km) |
| Belfast to Ansiao | 1,020.87 mi (1,642.93 km) |
| Belfast to Anta | 947.03 mi (1,524.09 km) |
