| Seini to Alenquer | 1,714.35 mi (2,758.98 km) |
| Seini to Alfena | 1,618.27 mi (2,604.36 km) |
| Seini to Alijo | 1,568.45 mi (2,524.18 km) |
| Seini to Aljustrel | 1,717.27 mi (2,763.67 km) |
| Seini to Almada | 1,734.17 mi (2,790.88 km) |
| Seini to Almargem | 1,733.31 mi (2,789.49 km) |
| Seini to Almeirim | 1,690.64 mi (2,720.81 km) |
| Seini to Amadora | 1,735.69 mi (2,793.32 km) |
| Seini to Amarante | 1,596.14 mi (2,568.73 km) |
| Seini to Amares | 1,597.69 mi (2,571.23 km) |
| Seini to Amora | 1,734.32 mi (2,791.12 km) |
| Seini to Anadia | 1,639.90 mi (2,639.16 km) |
| Seini to Angra do Heroismo | 2,571.50 mi (4,138.42 km) |
| Seini to Ansiao | 1,657.25 mi (2,667.08 km) |
| Seini to Anta | 1,630.16 mi (2,623.50 km) |
