| Decin to Alfena | 1,266.26 mi (2,037.85 km) |
| Decin to Alijo | 1,222.44 mi (1,967.33 km) |
| Decin to Aljustrel | 1,408.06 mi (2,266.06 km) |
| Decin to Almada | 1,408.60 mi (2,266.92 km) |
| Decin to Almargem | 1,405.01 mi (2,261.14 km) |
| Decin to Almeirim | 1,362.75 mi (2,193.13 km) |
| Decin to Amadora | 1,408.97 mi (2,267.52 km) |
| Decin to Amarante | 1,246.55 mi (2,006.12 km) |
| Decin to Amares | 1,242.15 mi (1,999.05 km) |
| Decin to Amora | 1,409.65 mi (2,268.62 km) |
| Decin to Anadia | 1,298.31 mi (2,089.43 km) |
| Decin to Angra do Heroismo | 2,164.22 mi (3,482.98 km) |
| Decin to Ansiao | 1,321.97 mi (2,127.50 km) |
| Decin to Anta | 1,280.37 mi (2,060.56 km) |
| Decin to Arcos de Valdevez | 1,235.82 mi (1,988.87 km) |
