| Thornbury to Arcos de Valdevez | 729.38 mi (1,173.83 km) |
| Thornbury to Arcozelo | 784.70 mi (1,262.85 km) |
| Thornbury to Arganil | 830.13 mi (1,335.96 km) |
| Thornbury to Arouca | 785.97 mi (1,264.89 km) |
| Thornbury to Arruda dos Vinhos | 927.59 mi (1,492.80 km) |
| Thornbury to Aveiro | 812.41 mi (1,307.45 km) |
| Thornbury to Aver-o-Mar | 764.41 mi (1,230.20 km) |
| Thornbury to Aves | 753.78 mi (1,213.09 km) |
| Thornbury to Azambuja | 918.85 mi (1,478.75 km) |
| Thornbury to Baiao | 767.24 mi (1,234.76 km) |
| Thornbury to Barcelos | 754.35 mi (1,214.01 km) |
| Thornbury to Barreiro | 948.44 mi (1,526.37 km) |
| Thornbury to Batalha | 879.37 mi (1,415.21 km) |
| Thornbury to Beja | 973.41 mi (1,566.56 km) |
| Thornbury to Belas | 944.64 mi (1,520.25 km) |
