| Astoria to Arcos de Valdevez | 5,175.94 mi (8,329.87 km) |
| Astoria to Arcozelo | 5,210.21 mi (8,385.02 km) |
| Astoria to Arganil | 5,274.24 mi (8,488.07 km) |
| Astoria to Arouca | 5,229.92 mi (8,416.75 km) |
| Astoria to Arruda dos Vinhos | 5,304.80 mi (8,537.26 km) |
| Astoria to Aveiro | 5,232.10 mi (8,420.25 km) |
| Astoria to Aver-o-Mar | 5,187.52 mi (8,348.51 km) |
| Astoria to Aves | 5,201.36 mi (8,370.77 km) |
| Astoria to Azambuja | 5,307.33 mi (8,541.32 km) |
| Astoria to Baiao | 5,224.72 mi (8,408.37 km) |
| Astoria to Barcelos | 5,186.71 mi (8,347.20 km) |
| Astoria to Barreiro | 5,321.51 mi (8,564.14 km) |
| Astoria to Batalha | 5,278.84 mi (8,495.46 km) |
| Astoria to Beja | 5,396.20 mi (8,684.34 km) |
| Astoria to Belas | 5,308.64 mi (8,543.43 km) |
