| Preakness to Arcos de Valdevez | 3,323.72 mi (5,349.01 km) |
| Preakness to Arcozelo | 3,334.09 mi (5,365.71 km) |
| Preakness to Arganil | 3,385.14 mi (5,447.85 km) |
| Preakness to Arouca | 3,356.32 mi (5,401.48 km) |
| Preakness to Arruda dos Vinhos | 3,370.59 mi (5,424.44 km) |
| Preakness to Aveiro | 3,344.97 mi (5,383.21 km) |
| Preakness to Aver-o-Mar | 3,318.62 mi (5,340.81 km) |
| Preakness to Aves | 3,340.11 mi (5,375.39 km) |
| Preakness to Azambuja | 3,378.00 mi (5,436.36 km) |
| Preakness to Baiao | 3,360.19 mi (5,407.70 km) |
| Preakness to Barcelos | 3,322.94 mi (5,347.75 km) |
| Preakness to Barreiro | 3,379.64 mi (5,439.00 km) |
| Preakness to Batalha | 3,364.80 mi (5,415.12 km) |
| Preakness to Beja | 3,456.25 mi (5,562.29 km) |
| Preakness to Belas | 3,366.47 mi (5,417.81 km) |
