| Ada to Alenquer | 1,548.20 mi (2,491.59 km) |
| Ada to Alfena | 1,461.67 mi (2,352.33 km) |
| Ada to Alijo | 1,410.14 mi (2,269.40 km) |
| Ada to Aljustrel | 1,544.92 mi (2,486.31 km) |
| Ada to Almada | 1,566.72 mi (2,521.39 km) |
| Ada to Almargem | 1,566.77 mi (2,521.47 km) |
| Ada to Almeirim | 1,524.39 mi (2,453.27 km) |
| Ada to Amadora | 1,568.60 mi (2,524.41 km) |
| Ada to Amarante | 1,438.85 mi (2,315.61 km) |
| Ada to Amares | 1,442.77 mi (2,321.92 km) |
| Ada to Amora | 1,566.58 mi (2,521.16 km) |
| Ada to Anadia | 1,479.03 mi (2,380.27 km) |
| Ada to Angra do Heroismo | 2,435.28 mi (3,919.21 km) |
| Ada to Ansiao | 1,493.90 mi (2,404.20 km) |
| Ada to Anta | 1,472.54 mi (2,369.82 km) |
