| Middle River to Alenquer | 3,519.69 mi (5,664.39 km) |
| Middle River to Alfena | 3,486.03 mi (5,610.22 km) |
| Middle River to Alijo | 3,535.67 mi (5,690.11 km) |
| Middle River to Aljustrel | 3,593.27 mi (5,782.81 km) |
| Middle River to Almada | 3,522.77 mi (5,669.35 km) |
| Middle River to Almargem | 3,512.61 mi (5,653.00 km) |
| Middle River to Almeirim | 3,535.32 mi (5,689.55 km) |
| Middle River to Amadora | 3,517.61 mi (5,661.04 km) |
| Middle River to Amarante | 3,507.42 mi (5,644.65 km) |
| Middle River to Amares | 3,485.66 mi (5,609.62 km) |
| Middle River to Amora | 3,526.20 mi (5,674.87 km) |
| Middle River to Anadia | 3,511.33 mi (5,650.94 km) |
| Middle River to Angra do Heroismo | 2,609.24 mi (4,199.16 km) |
| Middle River to Ansiao | 3,525.01 mi (5,672.95 km) |
| Middle River to Anta | 3,487.12 mi (5,611.98 km) |
