| Castanet-Tolosan to Arcozelo | 544.93 mi (876.98 km) |
| Castanet-Tolosan to Arganil | 541.29 mi (871.13 km) |
| Castanet-Tolosan to Arouca | 529.06 mi (851.44 km) |
| Castanet-Tolosan to Arruda dos Vinhos | 631.17 mi (1,015.76 km) |
| Castanet-Tolosan to Aveiro | 556.80 mi (896.08 km) |
| Castanet-Tolosan to Aver-o-Mar | 542.90 mi (873.72 km) |
| Castanet-Tolosan to Aves | 519.13 mi (835.46 km) |
| Castanet-Tolosan to Azambuja | 619.03 mi (996.23 km) |
| Castanet-Tolosan to Baiao | 512.76 mi (825.20 km) |
| Castanet-Tolosan to Barcelos | 532.93 mi (857.67 km) |
| Castanet-Tolosan to Barreiro | 643.38 mi (1,035.42 km) |
| Castanet-Tolosan to Batalha | 594.89 mi (957.39 km) |
| Castanet-Tolosan to Beja | 619.36 mi (996.77 km) |
| Castanet-Tolosan to Belas | 648.28 mi (1,043.31 km) |
| Castanet-Tolosan to Benavente | 619.84 mi (997.54 km) |
