| Syston to Arcos de Valdevez | 823.99 mi (1,326.08 km) |
| Syston to Arcozelo | 879.06 mi (1,414.70 km) |
| Syston to Arganil | 923.04 mi (1,485.48 km) |
| Syston to Arouca | 879.67 mi (1,415.69 km) |
| Syston to Arruda dos Vinhos | 1,021.22 mi (1,643.50 km) |
| Syston to Aveiro | 906.50 mi (1,458.87 km) |
| Syston to Aver-o-Mar | 859.17 mi (1,382.70 km) |
| Syston to Aves | 847.92 mi (1,364.60 km) |
| Syston to Azambuja | 1,012.26 mi (1,629.08 km) |
| Syston to Baiao | 860.78 mi (1,385.29 km) |
| Syston to Barcelos | 848.99 mi (1,366.31 km) |
| Syston to Barreiro | 1,041.90 mi (1,676.77 km) |
| Syston to Batalha | 973.04 mi (1,565.95 km) |
| Syston to Beja | 1,064.65 mi (1,713.39 km) |
| Syston to Belas | 1,038.43 mi (1,671.19 km) |
