| Den Helder to Alfena | 1,017.85 mi (1,638.07 km) |
| Den Helder to Alijo | 986.65 mi (1,587.86 km) |
| Den Helder to Aljustrel | 1,207.79 mi (1,943.76 km) |
| Den Helder to Almada | 1,186.47 mi (1,909.44 km) |
| Den Helder to Almargem | 1,179.44 mi (1,898.12 km) |
| Den Helder to Almeirim | 1,140.90 mi (1,836.10 km) |
| Den Helder to Amadora | 1,185.27 mi (1,907.51 km) |
| Den Helder to Amarante | 1,003.35 mi (1,614.73 km) |
| Den Helder to Amares | 990.51 mi (1,594.08 km) |
| Den Helder to Amora | 1,188.67 mi (1,912.98 km) |
| Den Helder to Anadia | 1,062.40 mi (1,709.77 km) |
| Den Helder to Angra do Heroismo | 1,805.91 mi (2,906.33 km) |
| Den Helder to Ansiao | 1,093.08 mi (1,759.14 km) |
| Den Helder to Anta | 1,034.06 mi (1,664.16 km) |
| Den Helder to Arcos de Valdevez | 979.72 mi (1,576.71 km) |
