| Belfast to Arcos de Valdevez | 888.16 mi (1,429.35 km) |
| Belfast to Arcozelo | 943.81 mi (1,518.91 km) |
| Belfast to Arganil | 998.28 mi (1,606.58 km) |
| Belfast to Arouca | 949.96 mi (1,528.82 km) |
| Belfast to Arruda dos Vinhos | 1,088.64 mi (1,752.00 km) |
| Belfast to Aveiro | 972.85 mi (1,565.65 km) |
| Belfast to Aver-o-Mar | 920.72 mi (1,481.75 km) |
| Belfast to Aves | 915.46 mi (1,473.29 km) |
| Belfast to Azambuja | 1,081.70 mi (1,740.82 km) |
| Belfast to Baiao | 932.90 mi (1,501.35 km) |
| Belfast to Barcelos | 912.02 mi (1,467.76 km) |
| Belfast to Barreiro | 1,110.37 mi (1,786.97 km) |
| Belfast to Batalha | 1,041.25 mi (1,675.73 km) |
| Belfast to Beja | 1,148.08 mi (1,847.65 km) |
| Belfast to Belas | 1,104.22 mi (1,777.07 km) |
