| Buffalo to Arcos de Valdevez | 3,484.82 mi (5,608.28 km) |
| Buffalo to Arcozelo | 3,499.18 mi (5,631.39 km) |
| Buffalo to Arganil | 3,553.04 mi (5,718.07 km) |
| Buffalo to Arouca | 3,521.33 mi (5,667.04 km) |
| Buffalo to Arruda dos Vinhos | 3,545.53 mi (5,705.99 km) |
| Buffalo to Aveiro | 3,511.98 mi (5,651.99 km) |
| Buffalo to Aver-o-Mar | 3,482.32 mi (5,604.26 km) |
| Buffalo to Aves | 3,502.91 mi (5,637.38 km) |
| Buffalo to Azambuja | 3,552.26 mi (5,716.80 km) |
| Buffalo to Baiao | 3,523.80 mi (5,671.01 km) |
| Buffalo to Barcelos | 3,485.88 mi (5,609.98 km) |
| Buffalo to Barreiro | 3,555.94 mi (5,722.73 km) |
| Buffalo to Batalha | 3,536.42 mi (5,691.31 km) |
| Buffalo to Beja | 3,633.23 mi (5,847.11 km) |
| Buffalo to Belas | 3,542.65 mi (5,701.34 km) |
