| Watertown to Arcos de Valdevez | 3,320.10 mi (5,343.19 km) |
| Watertown to Arcozelo | 3,334.66 mi (5,366.61 km) |
| Watertown to Arganil | 3,388.68 mi (5,453.56 km) |
| Watertown to Arouca | 3,356.80 mi (5,402.25 km) |
| Watertown to Arruda dos Vinhos | 3,381.74 mi (5,442.39 km) |
| Watertown to Aveiro | 3,347.57 mi (5,387.40 km) |
| Watertown to Aver-o-Mar | 3,317.73 mi (5,339.36 km) |
| Watertown to Aves | 3,338.26 mi (5,372.41 km) |
| Watertown to Azambuja | 3,388.40 mi (5,453.10 km) |
| Watertown to Baiao | 3,359.19 mi (5,406.10 km) |
| Watertown to Barcelos | 3,321.24 mi (5,345.02 km) |
| Watertown to Barreiro | 3,392.27 mi (5,459.34 km) |
| Watertown to Batalha | 3,372.33 mi (5,427.25 km) |
| Watertown to Beja | 3,469.61 mi (5,583.80 km) |
| Watertown to Belas | 3,378.98 mi (5,437.94 km) |
