| Welwyn Garden City to Arcos de Valdevez | 789.22 mi (1,270.12 km) |
| Welwyn Garden City to Arcozelo | 843.40 mi (1,357.33 km) |
| Welwyn Garden City to Arganil | 883.85 mi (1,422.41 km) |
| Welwyn Garden City to Arouca | 842.40 mi (1,355.71 km) |
| Welwyn Garden City to Arruda dos Vinhos | 983.34 mi (1,582.53 km) |
| Welwyn Garden City to Aveiro | 870.07 mi (1,400.23 km) |
| Welwyn Garden City to Aver-o-Mar | 824.70 mi (1,327.23 km) |
| Welwyn Garden City to Aves | 811.84 mi (1,306.53 km) |
| Welwyn Garden City to Azambuja | 973.88 mi (1,567.31 km) |
| Welwyn Garden City to Baiao | 823.20 mi (1,324.81 km) |
| Welwyn Garden City to Barcelos | 814.22 mi (1,310.36 km) |
| Welwyn Garden City to Barreiro | 1,003.53 mi (1,615.03 km) |
| Welwyn Garden City to Batalha | 935.37 mi (1,505.33 km) |
| Welwyn Garden City to Beja | 1,021.91 mi (1,644.60 km) |
| Welwyn Garden City to Belas | 1,000.86 mi (1,610.73 km) |
