| Constanta to Alenquer | 1,959.24 mi (3,153.09 km) |
| Constanta to Alfena | 1,881.41 mi (3,027.84 km) |
| Constanta to Alijo | 1,828.87 mi (2,943.29 km) |
| Constanta to Aljustrel | 1,948.53 mi (3,135.86 km) |
| Constanta to Almada | 1,976.24 mi (3,180.45 km) |
| Constanta to Almargem | 1,977.29 mi (3,182.14 km) |
| Constanta to Almeirim | 1,935.46 mi (3,114.83 km) |
| Constanta to Amadora | 1,978.50 mi (3,184.09 km) |
| Constanta to Amarante | 1,858.21 mi (2,990.50 km) |
| Constanta to Amares | 1,863.72 mi (2,999.37 km) |
| Constanta to Amora | 1,975.76 mi (3,179.68 km) |
| Constanta to Anadia | 1,895.42 mi (3,050.39 km) |
| Constanta to Angra do Heroismo | 2,863.04 mi (4,607.61 km) |
| Constanta to Ansiao | 1,908.02 mi (3,070.66 km) |
| Constanta to Anta | 1,891.50 mi (3,044.08 km) |
