| Sion to Arcos de Valdevez | 838.75 mi (1,349.84 km) |
| Sion to Arcozelo | 874.54 mi (1,407.44 km) |
| Sion to Arganil | 878.49 mi (1,413.80 km) |
| Sion to Arouca | 860.90 mi (1,385.49 km) |
| Sion to Arruda dos Vinhos | 971.49 mi (1,563.46 km) |
| Sion to Aveiro | 889.73 mi (1,431.88 km) |
| Sion to Aver-o-Mar | 868.87 mi (1,398.31 km) |
| Sion to Aves | 846.27 mi (1,361.93 km) |
| Sion to Azambuja | 959.43 mi (1,544.05 km) |
| Sion to Baiao | 843.31 mi (1,357.17 km) |
| Sion to Barcelos | 858.25 mi (1,381.23 km) |
| Sion to Barreiro | 984.61 mi (1,584.57 km) |
| Sion to Batalha | 933.18 mi (1,501.81 km) |
| Sion to Beja | 962.46 mi (1,548.93 km) |
| Sion to Belas | 988.90 mi (1,591.48 km) |
