| Portage to Arcos de Valdevez | 3,814.21 mi (6,138.38 km) |
| Portage to Arcozelo | 3,830.35 mi (6,164.36 km) |
| Portage to Arganil | 3,885.36 mi (6,252.88 km) |
| Portage to Arouca | 3,852.43 mi (6,199.89 km) |
| Portage to Arruda dos Vinhos | 3,880.78 mi (6,245.51 km) |
| Portage to Aveiro | 3,843.98 mi (6,186.29 km) |
| Portage to Aver-o-Mar | 3,812.90 mi (6,136.27 km) |
| Portage to Aves | 3,833.04 mi (6,168.68 km) |
| Portage to Azambuja | 3,887.22 mi (6,255.87 km) |
| Portage to Baiao | 3,854.27 mi (6,202.85 km) |
| Portage to Barcelos | 3,816.11 mi (6,141.43 km) |
| Portage to Barreiro | 3,891.70 mi (6,263.08 km) |
| Portage to Batalha | 3,870.33 mi (6,228.69 km) |
| Portage to Beja | 3,969.15 mi (6,387.74 km) |
| Portage to Belas | 3,878.38 mi (6,241.65 km) |
