| Slupca to Alfena | 1,451.94 mi (2,336.67 km) |
| Slupca to Alijo | 1,409.05 mi (2,267.64 km) |
| Slupca to Aljustrel | 1,597.21 mi (2,570.47 km) |
| Slupca to Almada | 1,596.74 mi (2,569.71 km) |
| Slupca to Almargem | 1,592.93 mi (2,563.58 km) |
| Slupca to Almeirim | 1,550.80 mi (2,495.77 km) |
| Slupca to Amadora | 1,597.02 mi (2,570.16 km) |
| Slupca to Amarante | 1,432.62 mi (2,305.58 km) |
| Slupca to Amares | 1,427.41 mi (2,297.20 km) |
| Slupca to Amora | 1,597.87 mi (2,571.52 km) |
| Slupca to Anadia | 1,485.20 mi (2,390.19 km) |
| Slupca to Angra do Heroismo | 2,332.22 mi (3,753.34 km) |
| Slupca to Ansiao | 1,509.45 mi (2,429.22 km) |
| Slupca to Anta | 1,466.30 mi (2,359.79 km) |
| Slupca to Arcos de Valdevez | 1,420.60 mi (2,286.23 km) |
