| Biddeford to Arcos de Valdevez | 3,078.87 mi (4,954.97 km) |
| Biddeford to Arcozelo | 3,090.98 mi (4,974.45 km) |
| Biddeford to Arganil | 3,143.35 mi (5,058.73 km) |
| Biddeford to Arouca | 3,113.19 mi (5,010.20 km) |
| Biddeford to Arruda dos Vinhos | 3,132.28 mi (5,040.91 km) |
| Biddeford to Aveiro | 3,102.74 mi (4,993.38 km) |
| Biddeford to Aver-o-Mar | 3,074.89 mi (4,948.55 km) |
| Biddeford to Aves | 3,095.99 mi (4,982.52 km) |
| Biddeford to Azambuja | 3,139.33 mi (5,052.27 km) |
| Biddeford to Baiao | 3,116.44 mi (5,015.42 km) |
| Biddeford to Barcelos | 3,078.87 mi (4,954.97 km) |
| Biddeford to Barreiro | 3,142.05 mi (5,056.63 km) |
| Biddeford to Batalha | 3,124.79 mi (5,028.86 km) |
| Biddeford to Beja | 3,219.06 mi (5,180.58 km) |
| Biddeford to Belas | 3,128.81 mi (5,035.33 km) |
