| Seymour to Arcos de Valdevez | 3,936.43 mi (6,335.07 km) |
| Seymour to Arcozelo | 3,949.45 mi (6,356.03 km) |
| Seymour to Arganil | 4,002.30 mi (6,441.08 km) |
| Seymour to Arouca | 3,971.64 mi (6,391.74 km) |
| Seymour to Arruda dos Vinhos | 3,991.83 mi (6,424.24 km) |
| Seymour to Aveiro | 3,961.56 mi (6,375.51 km) |
| Seymour to Aver-o-Mar | 3,933.07 mi (6,329.66 km) |
| Seymour to Aves | 3,953.97 mi (6,363.30 km) |
| Seymour to Azambuja | 3,998.87 mi (6,435.56 km) |
| Seymour to Baiao | 3,974.60 mi (6,396.50 km) |
| Seymour to Barcelos | 3,936.88 mi (6,335.80 km) |
| Seymour to Barreiro | 4,001.62 mi (6,439.98 km) |
| Seymour to Batalha | 3,984.17 mi (6,411.90 km) |
| Seymour to Beja | 4,078.63 mi (6,563.92 km) |
| Seymour to Belas | 3,988.38 mi (6,418.67 km) |
