| Portet-sur-Garonne to Arcozelo | 540.58 mi (869.99 km) |
| Portet-sur-Garonne to Arganil | 537.17 mi (864.50 km) |
| Portet-sur-Garonne to Arouca | 524.76 mi (844.52 km) |
| Portet-sur-Garonne to Arruda dos Vinhos | 627.23 mi (1,009.42 km) |
| Portet-sur-Garonne to Aveiro | 552.53 mi (889.22 km) |
| Portet-sur-Garonne to Aver-o-Mar | 538.49 mi (866.61 km) |
| Portet-sur-Garonne to Aves | 514.73 mi (828.38 km) |
| Portet-sur-Garonne to Azambuja | 615.09 mi (989.89 km) |
| Portet-sur-Garonne to Baiao | 508.43 mi (818.23 km) |
| Portet-sur-Garonne to Barcelos | 528.51 mi (850.55 km) |
| Portet-sur-Garonne to Barreiro | 639.51 mi (1,029.19 km) |
| Portet-sur-Garonne to Batalha | 590.83 mi (950.85 km) |
| Portet-sur-Garonne to Beja | 615.82 mi (991.06 km) |
| Portet-sur-Garonne to Belas | 644.36 mi (1,037.00 km) |
| Portet-sur-Garonne to Benavente | 615.94 mi (991.26 km) |
