| Sligo to Alfena | 900.19 mi (1,448.72 km) |
| Sligo to Alijo | 898.76 mi (1,446.41 km) |
| Sligo to Aljustrel | 1,129.77 mi (1,818.20 km) |
| Sligo to Almada | 1,077.38 mi (1,733.88 km) |
| Sligo to Almargem | 1,066.00 mi (1,715.57 km) |
| Sligo to Almeirim | 1,041.03 mi (1,675.37 km) |
| Sligo to Amadora | 1,073.83 mi (1,728.16 km) |
| Sligo to Amarante | 898.42 mi (1,445.86 km) |
| Sligo to Amares | 874.06 mi (1,406.66 km) |
| Sligo to Amora | 1,081.05 mi (1,739.77 km) |
| Sligo to Anadia | 955.80 mi (1,538.21 km) |
| Sligo to Angra do Heroismo | 1,390.39 mi (2,237.61 km) |
| Sligo to Ansiao | 991.49 mi (1,595.65 km) |
| Sligo to Anta | 916.16 mi (1,474.42 km) |
| Sligo to Arcos de Valdevez | 858.11 mi (1,380.99 km) |
